如何获取数组中特定值的数量？

Question

我有一个多维数组。我想在所有数组中获得特定值的计数。主数组中的这个数组取决于我添加了多少条评论。

这里是我的数组：

array(3) { 
    [0]=> 
    array(11) { 
    ["comment_id"]=> string(1) "1" 
    ["user_Id"]=> string(1) "2" 
    ["comment"]=> string(18) "Commented! edited!" 
    ["comment_datetime"]=> string(19) "2015-02-20 04:24:28" 
    ["update_at"]=> string(19) "2015-02-20 04:23:18" 
    ["user"]=> string(18) "Nishan Weerasinghe" 
    ["delete"]=> string(1) "0" 
    ["username"]=> string(6) "Nishan" 
    ["picture_id"]=> NULL 
    ["picture"]=> NULL 
    ["picture_ext"]=> NULL 
    } 

    [1]=> 
    array(11) { 
    ["comment_id"]=> string(2) "48" 
    ["user_Id"]=> string(1) "2" 
    ["comment"]=> string(4) "here" 
    ["comment_datetime"]=> string(19) "2015-02-23 12:58:00" 
    ["update_at"]=> string(0) "" 
    ["user"]=> string(18) "Nishan Weerasinghe" 
    ["delete"]=> string(1) "0" 
    ["username"]=> string(6) "Nishan" 
    ["picture_id"]=> NULL 
    ["picture"]=> NULL 
    ["picture_ext"]=> NULL 
    } 
    [2]=> 
    array(11) { 
    ["comment_id"]=> string(2) "49" 
    ["user_Id"]=> string(1) "2" 
    ["comment"]=> string(3) "dfg" 
    ["comment_datetime"]=> string(19) "2015-02-23 14:46:56" 
    ["update_at"]=> string(0) "" 
    ["user"]=> string(18) "Nishan Weerasinghe" 
    ["delete"]=> string(1) "1" 
    ["username"]=> string(6) "Nishan" 
    ["picture_id"]=> NULL 
    ["picture"]=> NULL 
    ["picture_ext"]=> NULL 
    } 
} 

我想了解有多少["delete"]=> 0（答案应该按照本恩是2）计数是有主阵列中。

Answer 1

$counter = 0; 
foreach($results as $result){ 
    if($result['delete'] == "0"){ 
     $counter++; 
    } 
} 
echo $counter; 

像评论说，一个简单的foreach和一些数学。

Answer 2

只是使用的foreach

$count=0; 
foreach($yourarray as $a){ 

    if($a['delete']=='1') 
     $count++; 

} 

Answer 3

你可以用这样的功能做到这一点（需要PHP> 5.5.0）：

echo array_count_values(array_column($array_string, 'delete'))[0]; 

Answer 4

只是适用foreach循环如下：

$count = 0; 
foreach($yourarray as $counter){ 
    if($counter['delete'] == "0"){ 
     $count++; 
    } 
} 
echo $count;