PHP gets the specified value from a multi-dimensional array in which column of the array?

Many problems will be encountered in the process of obtaining arrays. This article will explain the relevant knowledge.

PHP gets the specified value of the multi-dimensional array in which column of the array

Mainly used:

array_column
array_search

<?php 
$user = array(   
    0 => array(   
        &#39;id&#39;    => 1,   
        &#39;name&#39;  => &#39;张三&#39;,   
        &#39;email&#39; => &#39;zhangsan@qq.com&#39;,   
    ),   
    1 => array(   
        &#39;id&#39;    => 3,   
        &#39;name&#39;  => &#39;李四&#39;,   
        &#39;email&#39; => &#39;lisi@qq.com&#39;,   
    ),   
    2 => array(   
        &#39;id&#39;    => 5,   
        &#39;name&#39;  => &#39;王五&#39;,   
        &#39;email&#39; => &#39;wangwu@qq.com&#39;,   
    ) 
);   
print_r(array_column($user,&#39;id&#39;)); 
?>
   
print_r会输出下列字段
Array
(
    [0] => 1
    [1] => 3
    [2] => 5
)

Then get the position of the corresponding value according to the array_search function

This This article explains the relevant knowledge of obtaining arrays. For more related knowledge, please pay attention to the PHP Chinese website.

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