删除不符合特定条件的所有数组元素 [英] Remove all array elements that do not match specific condition

问题描述

我一直在寻找到 array_map ，但不知道这是否是做的最好的方式。

I've been looking into array_map but not sure if this is the best way to do it.

我目前得到以下阵列从回我 SCANDIR

I am currently getting the following array returned from my scandir

Array ( [0] => . [1] => .. [2] => .DS_Store [3] => post-my-first-test-post.html [4] => post-my-second-test-post.html )

我想删除阵列中的所有项目不符合后 - *。所以它只返回岗位的数组

I want to remove all items in the array that do not match "post-* so it returns only an array of posts.

我看着使用水珠，但不知道如何与我有什么实现它。

I have looked into using glob but not sure how to implement it with what I have.

类似水珠（后 - *）;

推荐答案

您应该看 array_filter（）代替

$result = array_filter(
    $originalArray,
    function($value) {
        return (strpos($value, 'post-') === 0);
    }
);

虽然使用水珠（）而不是SCANDIR（）将允许你做过滤器，而实际上检索目录列表

Though using glob() rather than scandir() would have allowed you to do the filter while actually retrieving the directory list

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