注册送现金一元秒提现

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                            PHP7.0新增功能详解(实例)

                            发布:smiling 来源: PHP粉丝网  添加日期:2019-02-05 13:23:46 浏览: 评论:0 

                            注册送现金一元秒提现ZHEIYIPIANZHUYAOSHILAIXIANGXIFENXIphp7.0DEXINZENGGONGNENG。

                            一、性能与底层

                            PHP7SUDUSHI PHP5.6 DELIANGBEI

                            php7 ZUIXIANZHUDEBIANHUAJIUSHIXINGNENGDEJIDATISHENG,YIJIEJINFacebookKAIFADEPHPZHIXINGYINQINGHHVM。ZAIWordPressJIZHUNXINGNENGCESHIZHONG,SUDUBI5.6BANBENYAOKUAI2~3BEI,DADAJIANSHAOLENEICUNZHANYONG。PHP7ZAIYUYANSHANGYEYOUYIXIEBIANHUA,BIRUTIANJIAFANHUILEIXINGSHENGMING、ZENGJIALEYIXIEXINDEBAOLIUGUANJIANZIDENG。ZAIANQUANFANGMIAN,QUCHULEPHPANQUANMOSHI,TIANJIAMOSHUYINHAODENG。BUJINRUCI,XINBANHAIZHICHI64WEI,ERQIEBAOHANZUIXINBANZendYINQING。

                            测试一下

                            注册送现金一元秒提现HENJIANDANDEYIGELIZI,SHENGCHENGYIGE 60 WANYUANSUDESHUZU,TONGGUOCHAZHAOkey DEFANGSHI,LAIQUEDINGkeySHIFOUCUNZAI。

                            1. <?php 
                            2.  
                            3. $a = []; 
                            4.  
                            5. for($i=0;$i<600000;$i++){ 
                            6.  
                            7.   $a[$i] = $i
                            8.  
                            9.  
                            10. foreach($a as $item) { 
                            11.  
                            12.  array_key_exists($item$a); 
                            13.  

                            注册送现金一元秒提现WOMENFENBIEZAIphp5.6.11HEphp7.0.4LAICESHIXIAXINGNENG。

                            php5.6.11

                            1. ➜ time php 1.php 
                            2.  
                            3.   0.67s user 0.06s system 67% cpu 1.078 total 
                            4.  
                            5. ➜ time php 1.php 
                            6.  
                            7.   0.68s user 0.06s system 98% cpu 0.748 total 
                            8.  
                            9. ➜ time php 1.php 
                            10.  
                            11.   0.65s user 0.06s system 67% cpu 1.052 total 

                            注册送现金一元秒提现SANCIPINGJUNXIALAI,DAZHISHI userSHIYONG 0.65MIAO,systemSHIYONG0.06MIAO,67%DEcpuLV。ZONGGONG1MIAOZUOYOU。

                            ZAIKANphp7DEQINGKUANG

                            1. ➜  time /usr/local/opt/php70/bin/php 1.php 
                            2.  
                            3.   0.52s user 0.02s system 98% cpu 0.544 total 
                            4.  
                            5. ➜  time /usr/local/opt/php70/bin/php 1.php 
                            6.  
                            7.   0.49s user 0.02s system 99% cpu 0.513 total 
                            8.  
                            9. ➜  time /usr/local/opt/php70/bin/php 1.php 
                            10.  
                            11.   0.51s user 0.02s system 98% cpu 0.534 total 

                            注册送现金一元秒提现DUIBIXIALAI,userSHIYONGSHIJIANXIAJIANG20%ZUOYOU,systemSHIYONGSHIJIANXIAJIANG70%,cpuSHIYONGLVGENGGAOGAODA98%。ZONGTISHIJIANJIANSHAOWEI。0.5MIAO。

                            注册送现金一元秒提现ZHEIGELIZIKANXIALAI,XIAOLVTIGONGLE2BEI。QUESHIBUCUO。

                            注册送现金一元秒提现ZAIKANYIGELIZI。TONGYANGYESHISHENGCHENGYIGE 60 WANYUANSUDESHUZU,CHAZHAO valueSHIFOUCUNZAI。

                            1. <?php 
                            2.  
                            3. $a = []; 
                            4.  
                            5. for($i=0;$i<600000;$i++){ 
                            6.  
                            7.     $a[$i] = $i
                            8.  
                            9.  
                            10. foreach($a as $i) { 
                            11.  
                            12.     array_search($i$a); 
                            13.  
                            14.  
                            15. ?> 

                            XIANKANphp5.6.11

                            1. ➜  testPHP time php 2.php 
                            2.  
                            3. 0.68s user 0.03s system 66% cpu 1.077 total 
                            4.  
                            5. ➜  testPHP time php 2.php 
                            6.  
                            7. 0.68s user 0.02s system 98% cpu 0.710 total 
                            8.  
                            9. ➜  testPHP time php 2.php 
                            10.  
                            11. 0.68s user 0.02s system 98% cpu 0.713 total 
                            12.  
                            13. ➜  testPHP time php 2.php 
                            14.  
                            15. 0.69s user 0.02s system 98% cpu 0.721 total 

                            ZAIJIEZHEKANphp7.0.4

                            1. ➜  testPHP time /usr/local/opt/php70/bin/php 2.php 
                            2.  
                            3. 0.12s user 0.02s system 69% cpu 0.201 total 
                            4.  
                            5. ➜  testPHP time /usr/local/opt/php70/bin/php 2.php 
                            6.  
                            7. 0.11s user 0.01s system 97% cpu 0.131 total 
                            8.  
                            9. ➜  testPHP time /usr/local/opt/php70/bin/php 2.php 
                            10.  
                            11. 0.11s user 0.01s system 96% cpu 0.130 total 

                            MINGXIANKANCHU,KUAILE6BEIDUO。LIHAI。

                            二、新特性

                            1. GENGDUODEBIAOLIANGLEIXINGSHENGMING

                            XIANZAIphpDEBIAOLIANGYOULIANGZHONGMOSHI: QIANGZHI (MOREN) HEYANGEMOSHI。 XIANZAIKEYISHIYONGXIALIELEIXINGCANSHU(WULUNYONGQIANGZHIMOSHIHAISHIYANGEMOSHI): ZIFUCHUAN(string), ZHENGSHU (int), FUDIANSHU (float), YIJIBUERZHI (bool)。TAMENKUOCHONGLEPHP5ZHONGYINRUDEQITALEIXING:LEIMING,JIEKOU,SHUZUHE HUIDIAOLEIXING。ZAIJIUBANZHONG,HANSHUDECANSHUSHENMINGZHINENGSHI(Array $arr)、(CLassName $obj)DENG,JIBENLEIXINGBIRUInt,StringDENGSHIBUNENGGOUBEISHENMINGDE。

                            ZENMELIJIENI?php7ZHIQIANDEBANBEN,WOMENYAOXIANGXIANDINGYIGEHANSHUDECANSHUDELEIXING,ZHIYOUarrayHUOZHEclass2ZHONG。

                            php7ZHIQIAN:

                            1. class MyInfo 
                            2.  
                            3.  
                            4.     public $a = 123; 
                            5.  
                            6.     public function getInfo(array $a$b
                            7.  
                            8.     { 
                            9.  
                            10.         var_dump($a$b); 
                            11.  
                            12.     } 
                            13.  
                            14.  
                            15. function getClass(MyInfo $a) { 
                            16.  
                            17.     var_dump($a->a); 
                            18.  

                            WOMENXIANGXIANDING getInfoDEDIYIGECANSHU,BIXUSHISHUZU,SUOYI,WOMENKEYIZAICANSHU$aQIANJIAYIGEarray。LAISHENMING。

                            注册送现金一元秒提现TONGYANG,WOMENXIANGgetClassDECANSHU,BIXUSHIYIGELEI,SUOYIWOMENJIUYONGZHEIGELEIDEclassNameQIANZHUILAISHENMING,QIDAOQIANGZHISHIYONGDEMUDE。

                            php7ZHIQIAN,ZHIYOUZHEI2ZHONGBIAOLIANGKEYISHIYONG。

                            WOMENLAISHIYONGYIXIA:

                            $info = new MyInfo();

                            注册送现金一元秒提现$info->getInfo([1,2,3,4], 4);

                            注册送现金一元秒提现WOMENANZHAOGUIDINGDELAI,DIYIGECANSHU,CHUANSHUZU,JIEGUODANGRANSHIZHENGCHANGDAYIN:

                            1. ➜  testPHP php 3.php 
                            2.  
                            3. array(3) { 
                            4.  
                            5.   [0] => 
                            6.  
                            7.   int(1) 
                            8.  
                            9.   [1] => 
                            10.  
                            11.   int(2) 
                            12.  
                            13.   [2] => 
                            14.  
                            15.   int(3) 
                            16.  
                            17.  
                            18. int(4) 

                            YAOSHIWOMENBUANZHUANGGUIDINGLAI,JIUHUIBAOZHIMINGCUOWU:

                            $info = new MyInfo();

                            注册送现金一元秒提现$info->getInfo(122, 0);

                            BAOCUO:

                            注册送现金一元秒提现PHP Catchable fatal error:  Argument 1 passed to MyInfo::getInfo() must be of the type array, integer given, called in /Users/yangyi/www/testPHP/3.php on line 25 and defined in /Users/yangyi/www/testPHP/3.php on line 8

                            PHP Stack trace:

                            PHP   1. {main}() /Users/yangyi/www/testPHP/3.php:0

                            注册送现金一元秒提现PHP   2. MyInfo->getInfo() /Users/yangyi/www/testPHP/3.php:25

                            SHIYONGLEIYEYIYANG:

                            注册送现金一元秒提现$info = new MyInfo();

                            注册送现金一元秒提现getClass($info);

                            SHUCHUJIEGUO:

                            ➜  testPHP php 3.php

                            int(123)

                            TONGYANG,WOMENCHUANRUBIEDECANSHU,JIUHUIBAOCUO:

                            1. getClass(123); 
                            2.  
                            3. ➜  testPHP php 3.php 
                            4.  
                            5. PHP Catchable fatal error:  Argument 1 passed to getClass() must be an instance of MyInfo, integer given, called in /Users/yangyi/www/testPHP/3.php on line 27 and defined in /Users/yangyi/www/testPHP/3.php on line 17 
                            6.  
                            7. PHP Stack trace: 
                            8.  
                            9. PHP   1. {main}() /Users/yangyi/www/testPHP/3.php:0 
                            10.  
                            11. PHP   2. getClass() /Users/yangyi/www/testPHP/3.php:27 

                            注册送现金一元秒提现WOMENHUIDAOZHEICIphp7DESHENGJI,TAKUOCHONGLEBIAOLIANGDELEIXING,ZENGJIALEbool、int、string、float。

                            php7YOU2ZHONGLIANGZHONGMOSHI: QIANGZHI (MOREN) HEYANGEMOSHI。

                            强制模式

                            注册送现金一元秒提现QIANGZHIMOSHISHIMORENMOSHI,QIANGZHIMOSHIXIA,TAHUIBANGWOMENBASHUZILEIXINGDEstringLEIXING,intZHENGXING,bool,QIANGZHILEIXING。QITALEIXINGBUNENGZHUANHUAN,JIUHUIBAOCUO。

                            HAISHIGANGCAIDELIZI:

                            1. class MyInfo 
                            2.  
                            3.  
                            4.     public $a = 123; 
                            5.  
                            6.     public function get1(bool $b
                            7.  
                            8.     { 
                            9.  
                            10.         var_dump($b); 
                            11.  
                            12.     } 
                            13.  
                            14.     public function get2(int $b
                            15.  
                            16.     { 
                            17.  
                            18.         var_dump($b); 
                            19.  
                            20.     } 
                            21.  
                            22.     public function get3(string $b
                            23.  
                            24.     { 
                            25.  
                            26.         var_dump($b); 
                            27.  
                            28.     } 
                            29.  
                            30.     public function get4(float $b
                            31.  
                            32.     { 
                            33.  
                            34.         var_dump($b); 
                            35.  
                            36.     } 
                            37.  
                            38.     public function get5(array $b
                            39.  
                            40.     { 
                            41.  
                            42.         var_dump($b); 
                            43.  
                            44.     } 
                            45.  

                            注册送现金一元秒提现WOMENXIANQUANBUCHUANRUint 1

                            1. $info = new MyInfo(); 
                            2.  
                            3. $info->get1(1); 
                            4.  
                            5. $info->get2(1); 
                            6.  
                            7. $info->get3(1); 
                            8.  
                            9. $info->get4(1); 

                            注册送现金一元秒提现KANDAYINJIEGUO,TAYIJINGBANGWOMENQIANGZHIZHUANHUANLE。

                            1. ➜  testPHP /usr/local/opt/php70/bin/php 3.php 
                            2.  
                            3. /Users/yangyi/www/testPHP/3.php:11: 
                            4.  
                            5. bool(true) 
                            6.  
                            7. /Users/yangyi/www/testPHP/3.php:19: 
                            8.  
                            9. int(1) 
                            10.  
                            11. /Users/yangyi/www/testPHP/3.php:26: 
                            12.  
                            13. string(1) "1" 
                            14.  
                            15. /Users/yangyi/www/testPHP/3.php:33: 
                            16.  
                            17. double(1) 

                            WOMENJIXU,CHUANRU string 1.23 :

                            1. $info = new MyInfo(); 
                            2.  
                            3. $info->get1('1.23'); 
                            4.  
                            5. $info->get2('1.23'); 
                            6.  
                            7. $info->get3('1.23'); 
                            8.  
                            9. $info->get4('1.23'); 

                            注册送现金一元秒提现KANXIA,DAYINJIEGUO。YEYIJINGBANGWOMENQIANGZHIZHUANHUANLE。

                            1. ➜  testPHP /usr/local/opt/php70/bin/php 3.php 
                            2.  
                            3. /Users/yangyi/www/testPHP/3.php:11: 
                            4.  
                            5. bool(true) 
                            6.  
                            7. /Users/yangyi/www/testPHP/3.php:19: 
                            8.  
                            9. int(1) 
                            10.  
                            11. /Users/yangyi/www/testPHP/3.php:26: 
                            12.  
                            13. string(4) "1.23" 
                            14.  
                            15. /Users/yangyi/www/testPHP/3.php:33: 
                            16.  
                            17. double(1.23) 

                            DANSHIWOMENRUGUOCANSHUSHIarrayJIUMEIFAQIANGZHIZHUANHUAN,JIUHUIBAOCUOLE:

                            1. $info->get5('1.23'); 
                            2.  
                            3.  testPHP /usr/local/opt/php70/bin/php 3.php 
                            4.  
                            5. PHP Fatal error:  Uncaught TypeError: Argument 1 passed to MyInfo::get5() must be of the type array, string given, called in /Users/yangyi/www/testPHP/3.php on line 54 and defined in /Users/yangyi/www/testPHP/3.php:37 

                            注册送现金一元秒提现WOMENZAIPHP5.6.11YUNXINGZHEIXIEDAIMAHUIBAOCUOMA?SHIYISHI:

                            1. $info = new MyInfo(); 
                            2.  
                            3. $info->get1('1.23'); 
                            4.  
                            5. $info->get2('1.23'); 
                            6.  
                            7. $info->get3('1.23'); 
                            8.  
                            9. $info->get4('1.23'); 
                            10.  
                            11. ➜  testPHP php 3.php 
                            12.  
                            13. PHP Catchable fatal error:  Argument 1 passed to MyInfo::get1() must be an instance of bool, string given, called in /Users/yangyi/www/testPHP/3.php on line 48 and defined in /Users/yangyi/www/testPHP/3.php on line 8 

                            HAOBA。ZHIJIEBAOCUOLE,SUIRANCUOWUTISHIYESHISHUOLEIXINGCUOWU,DANSHI,QITASHIBUZHICHIZHEIXIELEIXINGDESHENMING。

                            严格模式

                            QIANMIANSHUOLE,QIANGZHIMOSHIXIA,TAHUIBANGWOMENQIANGZHIZHUANHUAN,NEIMEYANGEMOSHIXIANI?

                            SHOUXIAN,RUHEDAKAIYANGEMOSHINI?

                            1. <?php 
                            2.  
                            3. declare(strict_types=1); 

                            注册送现金一元秒提现JIASHANGJIUKEYILE,ZHEIYANG,JIUJINRUYANGEMOSHI,CANSHUBIXUFUHEGUIDING,BURANBAOCUO:

                            WOMENJIASHANGZHEIJUHUA,ZAIYUNXINGXIA:

                            1. <?php 
                            2.  
                            3. declare(strict_types=1); 
                            4.  
                            5. ... 
                            6.  
                            7. ... 
                            8.  
                            9. $info = new MyInfo(); 
                            10.  
                            11. $info->get1('1.23'); 
                            12.  
                            13. $info->get2('1.23'); 
                            14.  
                            15. $info->get3('1.23'); 
                            16.  
                            17. $info->get4('1.23'); 

                            YUNXING,KANXIAJIEGUO,GUORANZHIJIEBAOCUOLE。

                            PHP Fatal error:  Uncaught TypeError: Argument 1 passed to MyInfo::get1() must be of the type boolean, string given, called in /Users/yangyi/www/testPHP/3.php on line 49 and defined in /Users/yangyi/www/testPHP/3.php:9

                            2. 返回值类型声明

                            注册送现金一元秒提现WOMENZHIDAOphpDEHANSHUSHIMEIYOUFANHUIZHILEIXINGDE,returnSHALEIXING,JIUSHISHALEIXING。php7ZHONGZENGJIALEFANHUIZHILEIXING,WOMENKEYIDINGYIYIGEHANSHUDEFANHUIZHILEIXING。

                            HEphp7SHENGJIDEBIAOLIANGLEIXINGSHENGMINGYIYANG,returnDELEIXINGKEYISHIYIXIAZHEIXIE:bool、int、string、float、array、class。

                            注册送现金一元秒提现JUGELIZILAISHUO,WOMENXIWANGYIGEHANSHUDEFANHUIZHISHIYIGESHUZU,WOMENKEYIZHEIYANGZISHUXIE:

                            :array {} // MAOHAO+FANHUILEIXING

                            1. function returnInfo ($a) : array { 
                            2.  
                            3.     return $a
                            4.  
                            5.  
                            6. var_dump(returnInfo([1,2,3])); 

                            SHIBUSHIJUEDEHENQIGUAI,YOUWUKESIYI!!!

                            CHAKANDAYINJIEGUO:

                            1. ➜  testPHP /usr/local/opt/php70/bin/php 3.php 
                            2.  
                            3. /Users/yangyi/www/testPHP/3.php:64: 
                            4.  
                            5. array(3) { 
                            6.  
                            7.   [0] => 
                            8.  
                            9.   int(1) 
                            10.  
                            11.   [1] => 
                            12.  
                            13.   int(2) 
                            14.  
                            15.   [2] => 
                            16.  
                            17.   int(3) 
                            18.  

                            注册送现金一元秒提现TONGYANG,WOMENXIANGFANHUISHIintZHENGXING:

                            1. function returnInfo ($a) : int { 
                            2.  
                            3.     return $a
                            4.  
                            5.  
                            6. var_dump(returnInfo('1.233')); 

                            注册送现金一元秒提现CHAKANJIEGUO,TAYIJINGBANGWOMENQIANGZHIZHUANHUANCHENGZHENGXINGLE。

                            1. ➜  testPHP /usr/local/opt/php70/bin/php 3.php 
                            2.  
                            3. /Users/yangyi/www/testPHP/3.php:64: 
                            4.  
                            5. int(1) 

                            TONGYANG,WOMENKEYIFANHUIYIGEclassLEIXINGDE:

                            1. public function getLogger(): Logger { 
                            2.  
                            3.     return $this->logger; 
                            4.  

                            注册送现金一元秒提现MOREN,YESHIQIANGZHIMOSHI,HUIBANGWOMENZHUANHUAN,RUGUO,WOMENXIANGSHIYONGYANGEMOSHI,TONGYANGSHIYIYANGDE,ZAIWENJIANTOUBUJIASHANG:

                            1. <?php 
                            2.  
                            3. declare(strict_types=1); 

                            JIUKEYILE,ZHEIYANG,WOMENGUIDINGFANHUIZHISHISHENMELEIXING,JIUBIXUDESHIZHEIYANG,BURANJIUBAOZHIMINGBAOCUO。

                            3. null合并运算符 (??)

                            YOUYURICHANGSHIYONGZHONGCUNZAIDALIANGTONGSHISHIYONGSANYUANBIAODASHIHE isset()DEQINGKUANG, php7ZENGJIALEYIGEXINDEYUFATANG : nullHEBINGYUNSUANFU (??)

                            注册送现金一元秒提现RUGUOBIANLIANGCUNZAIQIEZHIBUWEINULL, TAJIUHUIFANHUIZISHENDEZHI,FOUZEFANHUITADEDIERGECAOZUOSHU。

                            1. //php version = 7  
                            2.  
                            3. $username = $user ?? 'nobody'
                            4.  
                            5. //php  version < 7 得这样使用: 
                            6.  
                            7. $username = isset($_GET['user']) ? $_GET['user'] : 'nobody'

                            QUESHIFANGBIANLEHENDUO。

                            WOJIDEphp5.3DEGENGXINZHONG,JIARULE SANYUANYUNSUANFUJIANXIEXINGSHI:

                            $a ?: $b

                            QIANWANBIEHE??GAOHUNXIAOLE!!!

                            注册送现金一元秒提现$a ?: $bDEYISISHI $aWEItrueSHI,ZHIJIEFANHUI$a, FOUZEFANHUI$b

                            注册送现金一元秒提现$a ?? $bDEYISISHI $a isset($a)WEItrue, QIEBUWEINULL, JIUFANHUI$a, FOUZEFANHUI$b。

                            KANLIZI:

                            1. $user = 0; 
                            2.  
                            3. $username = $user ?? 'nobody'
                            4.  
                            5. echo $username;  //输出 0,因为 0 存在 且 不为NULL。 
                            6.  
                            7. $username = $user ?: 'nobody'
                            8.  
                            9. echo $username//输出 'nobody',因为 0 为 false 

                            4. 太空船操作符(组合比较符)

                            php7 ZHONG,XINJIARULEYIGEBIJIAOFUHAO:<=> ,YINWEIZHANGXIANGXIANGTAIKONGCHUAN,SUOYI,YEJIAOTAIKONGCHUANCAOZUOFU。

                            TAYOUSHAYONGNI?

                            <=>YONGYUBIJIAOLIANGGEBIAODASHI。DANG$aXIAOYU、DENGYUHUODAYU$bSHITAFENBIEFANHUI-1、0HUO1。

                            KANLIZI:

                            1. <?php 
                            2.  
                            3. // Integers 
                            4.  
                            5. echo 1 <=> 1; // 0 
                            6.  
                            7. echo 1 <=> 2; // -1 
                            8.  
                            9. echo 2 <=> 1; // 1 
                            10.  
                            11. // Floats 
                            12.  
                            13. echo 1.5 <=> 1.5; // 0 
                            14.  
                            15. echo 1.5 <=> 2.5; // -1 
                            16.  
                            17. echo 2.5 <=> 1.5; // 1 
                            18.  
                            19. // Strings 
                            20.  
                            21. echo "a" <=> "a"// 0 
                            22.  
                            23. echo "a" <=> "b"// -1 
                            24.  
                            25. echo "b" <=> "a"// 1 
                            26.  
                            27. ?> 

                            注册送现金一元秒提现QISHI,MANDUODIFANGKEYIPAISHANGYONGCHANGDE。

                            5. 通过define()定义常量数组

                            注册送现金一元秒提现ArrayLEIXINGDECHANGLIANGXIANZAIKEYITONGGUO define()LAIDINGYI。ZAI PHP5.6 ZHONGJINNENGTONGGUOconstDINGYI。

                            ZAIphp5.3ZHONG,ZENGJIALEKEYISHIYONGconstLAISHENMINGCHANGLIANG,TIDAIdefine()HANSHU,DANSHIZHINENGSHENMINGYIXIEJIANDANDEBIANLIANG。

                            1. //旧式风格: 
                            2.  
                            3. define("XOOO""Value"); 
                            4.  
                            5. //新式风格: 
                            6.  
                            7. const XXOO = "Value"
                            8.  
                            9. //const 形式仅适用于常量,不适用于运行时才能求值的表达式: 
                            10.  
                            11. // 正确 
                            12.  
                            13. const XXOO = 1234; 
                            14.  
                            15. // 错误 
                            16.  
                            17. const XXOO = 2 * 617; 

                            注册送现金一元秒提现ZAIphp5.6ZHONG,YOUDUIconstJINXINGLAISHENGJI,KEYIZHICHISHANGMIANDEYUNSUANLE。

                            注册送现金一元秒提现const A = 2;

                            const B = A + 1;

                            注册送现金一元秒提现DANSHI,YIZHIDOUSHIZAIYOUHUAconst,KESHIQUEBAdefine()JIGAOWANGJILE,php 5.6SHENMINGYIGESHUZUCHANGLIANG,ZHINENGYONGconst。SUOYI,ZAI php7 ZHONGBA define()SHENMINGYIGESHUZUYEJIJIASHANGQULE。

                            1. //php 7 
                            2.  
                            3. define ('AWS' , [12,33,44,55]); 
                            4.  
                            5. // php < 7 
                            6.  
                            7. const QWE = [12,33,44,55]; 
                            8.  
                            9. echo AWS[1]; //12 
                            10.  
                            11. echo QWE[2]; //33 

                            注册送现金一元秒提现ZHICI,DAOphp7BANBEN,define()DEGONGNENGHEconstJIUYIMOYIYANGLE,SUOYI,NISUIBIANYONGNAYIGEDOUKEYI,DANSHIYINWEIZAIclassLEIZHONG,SHENMECHANGLIANGSHIconst。SUOYI,WOMENJIUTONGYIYONGconstSHENMINGCHANGLIANGHAOLE。

                            6. 匿名类

                            注册送现金一元秒提现XIANZAIYIJINGZHICHITONGGUOnew class LAISHILIHUAYIGENIMINGLEI,ZHEIKEYIYONGLAITIDAIYIXIEYONGHOUJIFENDEWANZHENGLEIDINGYI。

                            KANXIAZHEIGEGUANFANGWENDANGSHANGDEYIGELIZI:

                            1. <?php 
                            2.  
                            3. interface Logger { 
                            4.  
                            5.     public function log(string $msg); 
                            6.  
                            7.  
                            8. class Application { 
                            9.  
                            10.     private $logger
                            11.  
                            12.     public function getLogger(): Logger { 
                            13.  
                            14.          return $this->logger; 
                            15.  
                            16.     } 
                            17.  
                            18.     public function setLogger(Logger $logger) { 
                            19.  
                            20.          $this->logger = $logger
                            21.  
                            22.     } 
                            23.  
                            24.  
                            25. $app = new Application; 
                            26.  
                            27. $app->setLogger(new class implements Logger { 
                            28.  
                            29.     public function log(string $msg) { 
                            30.  
                            31.         echo $msg
                            32.  
                            33.     } 
                            34.  
                            35. }); 
                            36.  
                            37. var_dump($app->getLogger()); 
                            38.  
                            39. ?> 

                            WOMENXIANSHUCHUDEDAYINDEJIEGUO,XIANSHIWEINIMINGLEI:

                            1. class class@anonymous#2 (0) { 
                            2.  

                            WOMENLAIFENJIEXIA,HAIYUANBEITOULANDESHAOXIEDEDAIMA:

                            1. class logClass implements Logger { 
                            2.  
                            3.     public function log(string $msg) { 
                            4.  
                            5.         echo $msg
                            6.  
                            7.     } 
                            8.  
                            9.  
                            10. $app = new Application; 
                            11.  
                            12. $log2 = new logClass; 
                            13.  
                            14. $app->setLogger($log2); 

                            SHUCHUJIEGUOWEI:

                            class logClass#2 (0) {

                            }

                            SUIRANDAIMAJIANJIELEHENDUO,DANSHIHAISHIYOUDIANBUSHIYING,DUOYONGYONGJIUHAOLE。

                            注册送现金一元秒提现HAIJIDEphpZHONGDENIMINGHANSHUMA?ZAIphp5.3ZHONGXINZENGDENIMINGHANSHU,JIEHEXINDE,SHUNBIANFUXIXIA:

                            1. function arraysSum(array ...$arrays): array { 
                            2.  
                            3.     return array_map(function(array $array): int { 
                            4.  
                            5.         return array_sum($array); 
                            6.  
                            7.     }, $arrays); 
                            8.  
                            9.  
                            10. print_r(arraysSum([1,2,3], [4,5,6], [7,8,9])); 

                            SHUCHUJIEGUOWEI:

                            1. Array 
                            2.  
                            3.  
                            4.     [0] => 6 
                            5.  
                            6.     [1] => 15 
                            7.  
                            8.     [2] => 24 
                            9.  

                            7. Unicode codepoint 转译语法

                            ps : YOUYUYONGDESHAO,WOJIUZHIJIECHAOGUANWANGDESHUOMINGLE。

                            注册送现金一元秒提现ZHEIJIESHOUYIGEYI16JINZHIXINGSHIDE Unicode codepoint,BINGDAYINCHUYIGESHUANGYINHAOHUOheredocBAOWEIDE UTF-8 BIANMAGESHIDEZIFUCHUAN。 KEYIJIESHOURENHEYOUXIAODE codepoint,BINGQIEKAITOUDE 0 SHIKEYISHENGLVEDE。

                            1. echo "\u{0000aa}"
                            2.  
                            3. echo "\u{aa}"//省略了开头的0 
                            4.  
                            5. echo "\u{9999}"

                            KANXIASHUCHU:

                            ª ª XIANG

                            注册送现金一元秒提现WOMENZAIphp5.6HUANJINGXIAZHIXINGXIANI?HUIZENYANG:

                            \u{aa} \u{0000aa} \u{9999}

                            HAOBA,ZHIJIEYUANYANGSHUCHULE。

                            8. Closure::call() 闭包

                            ps : YOUYUYONGDESHAO,WOJIUZHIJIECHAOGUANWANGDESHUOMINGLE。

                            注册送现金一元秒提现Closure::call() XIANZAIYOUZHEGENGHAODEXINGNENG,JIANDUANGANLIANDEZANSHIBANGDINGYIGEFANGFADAODUIXIANGSHANGBIBAOBINGDIAOYONGTA。

                            1. <?php 
                            2.  
                            3. class A {private $x = 1;} 
                            4.  
                            5. // php 7之前: 
                            6.  
                            7. $getXCB = function() {return $this->x;}; 
                            8.  
                            9. $getX = $getXCB->bindTo(new A, 'A'); // intermediate closure 
                            10.  
                            11. echo $getX(); 
                            12.  
                            13. // PHP 7: 
                            14.  
                            15. $getX = function() {return $this->x;}; 
                            16.  
                            17. echo $getX->call(new A); 

                            HUISHUCHU:

                            1

                            1

                            9. 为unserialize()提供过滤

                            unserialize ZHEIGEHANSHUYINGGAIBUMOSHENG,TASHIphpZHONGYONGJIEKAIYONGserializeXULIEHUADEBIANLIANG。

                            KANGELIZI:

                            1. <?php 
                            2.  
                            3. $a = [1,2,3,4,5,6]; 
                            4.  
                            5. $b = serialize($a); 
                            6.  
                            7. $c = unserialize($b); 
                            8.  
                            9. var_dump($a$b$c); 

                            DAYINJIEGUOWEI:

                            1. array(6) { 
                            2.  
                            3.   [0] => 
                            4.  
                            5.   int(1) 
                            6.  
                            7.   [1] => 
                            8.  
                            9.   int(2) 
                            10.  
                            11.   [2] => 
                            12.  
                            13.   int(3) 
                            14.  
                            15.   [3] => 
                            16.  
                            17.   int(4) 
                            18.  
                            19.   [4] => 
                            20.  
                            21.   int(5) 
                            22.  
                            23.   [5] => 
                            24.  
                            25.   int(6) 
                            26.  
                            27.  
                            28. string(54) "a:6:{i:0;i:1;i:1;i:2;i:2;i:3;i:3;i:4;i:4;i:5;i:5;i:6;}" 
                            29.  
                            30. array(6) { 
                            31.  
                            32.   [0] => 
                            33.  
                            34.   int(1) 
                            35.  
                            36.   [1] => 
                            37.  
                            38.   int(2) 
                            39.  
                            40.   [2] => 
                            41.  
                            42.   int(3) 
                            43.  
                            44.   [3] => 
                            45.  
                            46.   int(4) 
                            47.  
                            48.   [4] => 
                            49.  
                            50.   int(5) 
                            51.  
                            52.   [5] => 
                            53.  
                            54.   int(6) 
                            55.  

                            注册送现金一元秒提现XIANZAIphp7ZHONGunserializeHUIBIANDEGENGJIAHAOYONG,TADUOLEYIGECANSHU,YONGLAIFANXULIEHUABAOHANclassDEGUOLVBUXUYAODELEI,BIANDEGENGJIAANQUAN。

                            1. unserialize($one, ["allowed_classes" => true]); 
                            2.  
                            3.     unserialize($one, ["allowed_classes" => false]); 
                            4.  
                            5.     unserialize($one, ["allowed_classes" => [class1,class2,class3]]); 

                            JUGELIZI,XIANXULIEHUAYIGELEI。

                            1. class MyInfo { 
                            2.  
                            3.         public function getMyName() 
                            4.  
                            5.         { 
                            6.  
                            7.                 return 'phper'
                            8.  
                            9.         } 
                            10.  
                            11.  
                            12. $phper = new MyInfo(); 
                            13.  
                            14. $one = serialize($phper); 
                            15.  
                            16. //参数allowed_classes 设置为 true,表示允许解析class 
                            17.  
                            18. $two = unserialize($one, ["allowed_classes" => true]); 
                            19.  
                            20. //参数allowed_classes 设置为 false,表示不允许解析class 
                            21.  
                            22. $three = unserialize($one, ["allowed_classes" => false]); 
                            23.  
                            24. //不加参数。正常解析。 
                            25.  
                            26. $four = unserialize($one); 
                            27.  
                            28. //只允许解析 类 MyInfo1。 
                            29.  
                            30. $five = unserialize($one, ["allowed_classes" => ["MyInfo1"]]); 
                            31.  
                            32. //分别输出下 getMyName方法; 
                            33.  
                            34. var_dump($one); 
                            35.  
                            36. var_dump($two->getMyName()); 
                            37.  
                            38. var_dump($three->getMyName()); 
                            39.  
                            40. var_dump($four->getMyName()); 
                            41.  
                            42. var_dump($five->getMyName()); 

                            FAXIAN3HE5ZHIJIEBAOZHIMINGCUOWULE:

                            PHP Fatal error:  main(): The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition "MyInfo" of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition  in /Users/yangyi/www/php7/5.php on line 22

                            DAZHIYISIJIUSHI,MEIQUANXIANJIEXI。

                            SUOYI,WOMENGAIYIXIA:

                            注册送现金一元秒提现$three = unserialize($one, ["allowed_classes" => true]);

                            $five = unserialize($one, ["allowed_classes" => ["MyInfo"]]);

                            ZAISHUCHU,JIUZHENGCHANGLE。

                            1. /Users/yangyi/www/php7/5.php:22: 
                            2.  
                            3. string(17) "O:6:"MyInfo":0:{}" 
                            4.  
                            5. /Users/yangyi/www/php7/5.php:23: 
                            6.  
                            7. string(5) "phper" 
                            8.  
                            9. /Users/yangyi/www/php7/5.php:24: 
                            10.  
                            11. string(5) "phper" 
                            12.  
                            13. /Users/yangyi/www/php7/5.php:25: 
                            14.  
                            15. string(5) "phper" 
                            16.  
                            17. /Users/yangyi/www/php7/5.php:26: 
                            18.  
                            19. string(5) "phper" 

                            注册送现金一元秒提现FAXIANWOMUQIANWEIZHIBINGMEIYONGDAO,BINGMEIYOUSHENMELUANYONG,HAOBA,JIXUXIAYIGE。

                            10. IntlChar

                            ps : YOUYUYONGDESHAO,WOJIUZHIJIECHAOGUANWANGDESHUOMINGLE。

                            XINZENGJIADE IntlChar(http://php.net/manual/zh/class.intlchar.php) LEIZHIZAIBAOLUCHUGENGDUODE ICU GONGNENG。ZHEIGELEIZISHENDINGYILEXUDUOJINGTAIFANGFAYONGYUCAOZUODUOZIFUJIDE unicode ZIFU。

                            1. <?php 
                            2.  
                            3. printf('%x', IntlChar::CODEPOINT_MAX); 
                            4.  
                            5. echo IntlChar::charName('@'); 
                            6.  
                            7. var_dump(IntlChar::ispunct('!')); 

                            YISHANGLICHENGHUISHUCHU:

                            10ffff

                            COMMERCIAL AT

                            bool(true)

                            RUOYAOSHIYONGCILEI,QINGXIANANZHUANGIntlKUOZHAN.

                            Tags: PHP7.0新增功能

                            分享到:

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