如果数组值等于 0,PHP 删除条目 [英] PHP remove entry if array value equals to 0
本文介绍了如果数组值等于 0,PHP 删除条目的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这就是我打印数组时得到的结果.它是一个多维数组,其中包含以下值.
This is what i get when i print_r my array. it's a multi-dimensional array which contains the following values.
[7] => Array
(
[0] => 1
[1] => 34
[2] => 181
[3] => 50
)
[9] => Array
(
[0] => 1
[1] => 2
[2] => 1
[3] => 47
)
[2] => Array
(
[0] => 20
[1] => 0
[2] => 1621
[3] => 45
)
[3] => Array
(
[0] => 120
[1] => 0
[2] => 121
[3] => 45
)
我想删除所有键 [1] 等于 0 的条目.进行修改后,我的最终数组应该是这样的
I would like to remove all entries in which the key [1] equals to 0. After doing the modifications, My final array should like this
[7] => Array
(
[0] => 1
[1] => 34
[2] => 181
[3] => 50
)
[9] => Array
(
[0] => 1
[1] => 2
[2] => 1
[3] => 47
)
有什么想法吗?
推荐答案
foreach
来拯救:
foreach($arr as $key => $entry) {
if(isset($entry[1]) && $entry[1] === 0) {
unset($arr[$key]);
}
}
还有一个 array_filter
示例:
And an array_filter
example:
$arr = array_filter($arr, function($entry) {
return $entry[1] !== 0;
});
(假设至少是 php 5.3,不过你可以通过创建一个命名函数并将其作为第二个参数传递给 array_filter
来解决这个问题)
(assumes at least php 5.3, though you can get around that by creating a named function and passing that as the second parameter to array_filter
)
这篇关于如果数组值等于 0,PHP 删除条目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!
查看全文