实例
<?php $a=array("red","green","blue"); array_pop($a); print_r($a); ?>
定义和用法
array_pop() 函数删除数组中的最后一个元素。
语法
array_pop(array)
参数 | 描述 |
array | 必需。规定数组。 |
技术细节
返回值: | 返回数组的最后一个值。如果数组是空的,或者不是一个数组,将返回 NULL。 |
PHP 版本: | 4+ |
现在我们试着使用PHP函数array_pop()从数组的尾端删除一些元素:
<? /* 首先我们建立一个数组 */ $fruitArray = array("apple", "orange", "banana", "Peach", "pear"); /* 使用array_pop()函数从数组的尾端删除一个元素 */ $popped = array_pop($fruitArray); /* 现在我们把删除后的数组中所有元素的键(key)与值(value)都显示在网页上 */ while (list($key,$value) = each($fruitArray)) { echo "$key : $value<br>"; } echo "<br>最后,刚才被删除的元素的值会储存在 \$popped 变量里面,它的值是:$popped"; ?>
显示结果如下:
0 : apple
1 : orange
2 : banana
3 : Peach
最后,由PHP函数array_pop()删除的元素的值会储存在 $popped 变量里面,它的值是: pear 。
The above is the detailed content of php function array_pop() to delete the last element in the array. For more information, please follow other related articles on the PHP Chinese website!

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