php怎麼去掉陣列中的空元素

php去掉陣列中的空元素的方法：1.使用「function myfunction($v) {...}」方法去除空元素；2、使用「foreach ($urlArr as $key => ; $val) {...}”方法去掉數組中的空元素。

本文操作環境：windows7系統、PHP7.1版，DELL G3電腦

php怎麼去掉陣列中的空元素？

PHP陣列去除空元素的方法

去移除空元素方法一：（保持鍵值不變）

原始陣列：

<?php
Array(
 [0] => sdfdsdsdsfrrrrrrr
 [1] => fdsfdsdsfds
 [2] => fdsfdsdsfdsds 
 [3] => fdsdsfdsfds 
 [4] => 
 [5] =>
 [6] =>
 [7] => fdsfdsfdsfds
 [8] => fdsfdsfdsfdsfdsfsd 
 [9] => ssssssss
 [10] => 
 [11] => sssssssssssssssssssss)
 ?>

處理後陣列

<?php
Array( 
[0] => sdfdsdsdsfrrrrrrr 
[1] => fdsfdsdsfds
[2] => fdsfdsdsfdsds 
[3] => fdsdsfdsfds 
[7] => fdsfdsfdsfds 
[8] => fdsfdsfdsfdsfdsfsd 
[9] => ssssssss 
[11] => sssssssssssssssssssss)
?>

使用方法：

<?php
function myfunction($v) {
    if ($v != "") {
        return true;
    }
    return false;
}
print_r(array_filter($urlArr, "myfunction"));
?>

移除空元素方法二：（鍵值自增）

原始陣列：

<?php
Array
(
[0] => sdfdsdsdsfrrrrrrr
[1] => fdsfdsdsfds
[2] => fdsfdsdsfdsds
[3] => fdsdsfdsfds
[4] =>
[5] =>
[6] =>
[7] => fdsfdsfdsfds
[8] => fdsfdsfdsfdsfdsfsd
[9] => ssssssss
[10] =>
[11] => sssssssssssssssssssss
)

處理之後陣列：

Array
(
[0] => sdfdsdsdsfrrrrrrr
[1] => fdsfdsdsfds
[2] => fdsfdsdsfdsds
[3] => fdsdsfdsfds
[4] => fdsfdsfdsfds
[5] => fdsfdsfdsfdsfdsfsd
[6] => ssssssss
[7] => sssssssssssssssssssss
)

使用方法：

$arr = array();
    foreach ($urlArr as $key => $val) {
        if (empty($val)) {
            continue;
        }
        $arr[] = $val;
    }

推薦學習：《PHP影片教學》

以上是php怎麼去掉陣列中的空元素的詳細內容。更多資訊請關注PHP中文網其他相關文章！