带有键匹配值的多维数组的foreach [英] foreach with multi-dimensional array where key matches value

问题描述

标题说明了一切，我知道如何长远地做到这一点，但我一直想知道是否有更短的方法。

Title explains it all, I know how to do this the long way but I have always wondered if there was a shorter way to do so.

让我们说，

$mutli = array(
    array('name' => 'john', 'adult' => 'true'  ),
    array('name' => 'eric', 'adult' => 'true'  ),
    array('name' => 'ryan', 'adult' => 'false' )
);

是否有更好的方法来选择所有成人== true的较低数组？

Is there a better way to select all lower arrays where adult == true?

$list = array();
foreach( $multi as $sub ){
    foreach( $sub as $key => $value ){
        if( $key == "adult" && $value == "true" )
            array_push( $list, $sub );
    }
}

不急，但我总是很好奇。

Not urgent, but I was always curious.

也许，

while( $key => $value as each($mutli) )

或其他东西：p

推荐答案

您可以使用 array_filter ：

$filtered = array_filter($mutli, function($v) { return $v['adult'] == 'true'; });

这篇关于带有键匹配值的多维数组的foreach的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！