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快速将PHP数组键值组合成字符串

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Release： 2016-06-06 20:08:42
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最近在写MVC碰到一个问题：可以使用implode快速将PHP数组组合成字符串。但是如果想要将键值快速输出成字符串呢？ 临时想到的方法是循环 假设有一个一维数组$a 存放N个内容. 代码一： ?php$b = '';foreach($a as $key=$value){$b.=$key;}echo $b;? 代码一的写

最近在写MVC碰到一个问题：可以使用implode快速将PHP数组组合成字符串。但是如果想要将键值快速输出成字符串呢？

临时想到的方法是循环

假设有一个一维数组$a 存放N个内容.

代码一：

<?php $b = '';
foreach($a as $key=>$value){
$b.=$key;
}
echo $b;
?>
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代码一的写法太痛苦了，而且PHP本身有一个函数implode可以将数组快速组成字符串，那么键值也必定可以的。重新看了一下数组函数的手册，找到array_keys可以直接返还数组中所有键值。手册地址：http://docs.php.net/manual/en/function.array-keys.php

代码二：

<?php echo implode("", array_keys($a));
?>
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哈哈，代码是不是简洁多了？:)

原文地址：快速将PHP数组键值组合成字符串, 感谢原作者分享。

Related labels：
mvc php synthesis string fast array key value
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