从数组中删除多个元素并重新索引

Question

我可以删除前三个元素和所有 value 不等于 2 的剩余元素吗？语言是 php.

print_r($array)

产出

Array ( 
    [0] => Array ( [name] => aa [value] => 0 )        
    [1] => Array ( [name] => db [value] => 1 ) 
    [2] => Array ( [name] => bc [value] => 2 )
    [3] => Array ( [name] => ba [value] => 3 ) 
    [4] => Array ( [name] => ba [value] => 0 ) 
    [5] => Array ( [name] => bc [value] => 1 )    
    [6] => Array ( [name] => aa [value] => 2 ) 
    [7] => Array ( [name] => cb [value] => 3 )
    [8] => Array ( [name] => ca [value] => 0 ) 
    [9] => Array ( [name] => dc [value] => 1 ) 
    [10] => Array ( [name] => db [value] => 2 )
    [11] => Array ( [name] => aa [value] => 3 )
    [12] => Array ( [name] => dd [value] => 0 )
    [13] => Array ( [name] => db [value] => 1 )
    [14] => Array ( [name] => bb [value] => 2 )
    [15] => Array ( [name] => ac [value] => 3 )
)

我还需要重新索引以便它从 0 开始

Array ( 
    [0] => Array ( [name] => aa [value] => 2 ) 
    [1] => Array ( [name] => db [value] => 2 )
    [2] => Array ( [name] => bb [value] => 2 )
)

Answer 1

你可以这样做：

$new_array = array();

foreach ($array as $k => $v) {
    if ($k > 2 && $v['value'] == 2) {
        $new_array[] = $v;
    }
}

print_r($new_array);

从数组中删除多个元素并重新索引

Remove multiple elements from array and reindex

php

arrays

indexing

array-unset