注册送现金一元秒提现

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                        1. 当前位置:首页 > PHP教程 > php数组 > 列表

                          php统计多维数组元素个数的方法介绍(附代码)

                          发布:smiling 来源: PHP粉丝网  添加日期:2019-02-05 14:23:33 浏览: 评论:0 

                          BENPIANWENZHANGJIDAJIADAILAIDENEIRONGSHIGUANYUphpTONGJIDUOWEISHUZUYUANSUGESHUDEFANGFAJIESHAO(FUDAIMA),YOUYIDINGDECANKAOJIAZHI,YOUXUYAODEPENGYOUKEYICANKAOYIXIA,XIWANGDUINIYOUSUOBANGZHU。

                          注册送现金一元秒提现YIBANQINGKUANGXIA,SHIYONGcountKEYIZHIJIETONGJISHUZUDEYUANSUGESHU

                          1. $arr = [ 
                          2.  
                          3. 'a'
                          4.  
                          5. 'b'
                          6.  
                          7. ]; 
                          8.  
                          9. echo count($arr);//2 

                          DANSHIYUDAOERWEISHUZUDESHIHOU,WOMENXIANGTONGJIDIERCENGDEYUANSUGESHU,ZHEIGESHIHOUKEYISHIYONGcountHANSHUDEDIERGECANSHU,count($arr, $mode = 0);$mode(0:TONGJIYIWEIDESUOYOUYUANSU,1:XUNHUANTONGJIBIANLIYUANSU)

                          注册送现金一元秒提现ZAI$mode=1DESHIHOU,countHANSHUHUIXUNHUANTONGJIYUANSUDEGESHU,RUGUOYUANSU$aSHIGESHUZUZESHULIANGHUIZONGSHUHUIZENGJIA$aYUANSUSHUJIA1;

                          1. $arr = [ 
                          2.  
                          3. 'a' => 'b'
                          4.  
                          5. 'c' => [ 
                          6.  
                          7.     'd'
                          8.  
                          9. ], 
                          10.  
                          11. ]; 
                          12.  
                          13. echo count($arr, 1);//3('b',['d'],'d') 

                          注册送现金一元秒提现ZHIYAOERWEISHUZUYOUGUILV,ZEKEYIHENFANGBIANDETONGJIERWEIDEYUANSUGESHU

                          1. $arr = [ 
                          2.  
                          3. 'a' => [ 
                          4.  
                          5.     'd'
                          6.  
                          7.     'e'
                          8.  
                          9. ], 
                          10.  
                          11. 'c' => [ 
                          12.  
                          13.     'd'
                          14.  
                          15.     'g'
                          16.  
                          17. ], 
                          18.  
                          19. ]; 
                          20.  
                          21. echo count($arr, 1) - count($arr);//4 

                          注册送现金一元秒提现SHIYONGarray_mapYEKEYI

                          1. $arrCount = 0; 
                          2.  
                          3. $countFun = function($ause(&$arrCount) { 
                          4.  
                          5. $arrCount += count($a); 
                          6.  
                          7. return $arrCount
                          8.  
                          9. }; 
                          10.  
                          11. array_map($countFun,$arr); 
                          12.  
                          13. echo $arrCount

                          JIZHU$arrCountYIDINGYAOYINYONGCHUANZHI,RUGUOYAOTONGJISANWEISHUZUDEYUANSUGESHU

                          1. $arr = [ 
                          2.  
                          3. 'a' => [ 
                          4.  
                          5.    'b' => [ 
                          6.  
                          7.        'd'
                          8.  
                          9.        'e'
                          10.  
                          11.        'g'
                          12.  
                          13.    ], 
                          14.  
                          15. ], 
                          16.  
                          17. 'c' => [ 
                          18.  
                          19.     'd' => [ 
                          20.  
                          21.         'd'
                          22.  
                          23.         'g'
                          24.  
                          25.     ], 
                          26.  
                          27. ], 
                          28.  
                          29. ]; 
                          30.  
                          31. $arrCount = 0; 
                          32.  
                          33. $countFun = function($ause(&$arrCount) { 
                          34.  
                          35.  
                          36. $arrCount += count($a, 1) - count($a); 
                          37.  
                          38. return $arrCount
                          39.  
                          40. }; 
                          41.  
                          42. array_map($countFun,$arr); 
                          43.  
                          44. echo $arrCount

                          注册送现金一元秒提现RUGUOYAOTONGJISIWEISHUZUDEYUANSUGESHU

                          1. $arr = [ 
                          2.  
                          3. 'a' => [ 
                          4.  
                          5.    'b' => [ 
                          6.  
                          7.        'd' => [ 
                          8.  
                          9.            'e'
                          10.  
                          11.            'g'
                          12.  
                          13.        ], 
                          14.  
                          15.    ], 
                          16.  
                          17. ], 
                          18.  
                          19. 'c' => [ 
                          20.  
                          21.     'd' => [ 
                          22.  
                          23.         'd' => [ 
                          24.  
                          25.             'e'
                          26.  
                          27.             'g'
                          28.  
                          29.             'f' 
                          30.  
                          31.         ], 
                          32.  
                          33.     ], 
                          34.  
                          35. ], 
                          36.  
                          37. ]; 
                          38.  
                          39. $arrCount = 0; 
                          40.  
                          41. $napFun = function($ause(&$arrCount) { 
                          42.  
                          43.  
                          44. $countFun = function($ause(&$arrCount) { 
                          45.  
                          46.     $arrCount += count($a, 1) - count($a); 
                          47.  
                          48.     return $arrCount
                          49.  
                          50. }; 
                          51.  
                          52. array_map($countFun,$a); 
                          53.  
                          54. return $arrCount
                          55.  
                          56. }; 
                          57.  
                          58. array_map($napFun,$arr); 
                          59.  
                          60. echo $arrCount

                          RUGUOSHITONGJI3WEIHUOGENGGAOWEIDUDEJIANYISHIYONGDIGUIDEFANGFA

                          1. $arr = [ 
                          2.  
                          3. 'a' => [ 
                          4.  
                          5.     'b' => [ 
                          6.  
                          7.        'd' => [ 
                          8.  
                          9.            'e'
                          10.  
                          11.            'g'
                          12.  
                          13.        ], 
                          14.  
                          15.     ], 
                          16.  
                          17. ], 
                          18.  
                          19. 'c' => [ 
                          20.  
                          21.     'd' => [ 
                          22.  
                          23.         'd' => [ 
                          24.  
                          25.             'e'
                          26.  
                          27.             'g'
                          28.  
                          29.             'f' 
                          30.  
                          31.         ], 
                          32.  
                          33.     ], 
                          34.  
                          35. ], 
                          36.  
                          37. ]; 
                          38.  
                          39.  
                          40. function arrCount($arr, &$arrCount$level){ 
                          41.  
                          42. if(0 === $level){ 
                          43.  
                          44.     $arrCount += count($arr); 
                          45.  
                          46.     print_r($arr); 
                          47.  
                          48. }else
                          49.  
                          50.     $level--; 
                          51.  
                          52.     foreach($arr as $a){ 
                          53.  
                          54.         arrCount($a$arrCount$level); 
                          55.  
                          56.     } 
                          57.  
                          58.  
                          59.  
                          60. $count = 0; 
                          61.  
                          62. $level = 3; 
                          63.  
                          64. arrCount($arr,$count,$level); 
                          65.  
                          66. echo $count

                          Tags: php统计多维数组元素个数

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