有一个多维数组
$template=Array (
[0] => Array ( [id] => 352 [name] => a )
[1] => Array ( [id] => 438 [name] => b )
[2] => Array ( [id] => 351 [name] => c )
)
和一个数组映射函数
function myfunction()
{
return "[selected]=>null";
}
print_r(array_map("myfunction",$template));
这导致
Array (
[0] => [selected]=>null
[1] => [selected]=>null
[2] => [selected]=>null
)
我如何映射数组来获得这个结果
Array (
[0] => Array ( [id] => 352 [name] => a [selected] => null)
[1] => Array ( [id] => 438 [name] => b [selected] => null)
[2] => Array ( [id] => 351 [name] => c [selected] => null)
)
最佳答案
您需要将值添加到每个给定的数组(在回调内),例如:
<?php
$in = [
[ 'id' => 352, 'name' => 'a' ],
[ 'id' => 438, 'name' => 'b' ],
[ 'id' => 351, 'name' => 'c' ],
];
$out = array_map(function (array $arr) {
// work on each array in the list of arrays
$arr['selected'] = null;
// return the extended array
return $arr;
}, $in);
print_r($out);
演示:https://3v4l.org/XHfLc
关于php - 数组映射 PHP 多维数组,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/44628519/