使用 implode()函数怎么将多维数组转成字符串的实现方法-php手册-php.cn

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使用 implode()函数怎么将多维数组转成字符串的实现方法

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Jun 02, 2017 am 11:30 AM

implodephpMultidimensional Arrays

PHP implode（）的用法和explode（）类似，但是功能却恰恰相反，implode（）是将数组元素组合成一个字符串。

    <?php
    $arr=array（&#39;a&#39;,&#39;b&#39;,&#39;c&#39;,&#39;d&#39;,&#39;e&#39;）；
    $s=implode（$arr）；  //默认是以空字符合并数组元素
    //$s=implode（&#39;,&#39;,$arr）；  //指定以","合并数组元素
    echo $s;
    ?>

上面这是一个简单的一维数组，那么多维数组行不行呢？

    <?php
    $arr=array（&#39;a&#39;,&#39;b&#39;,array（&#39;4&#39;,&#39;5&#39;,&#39;6&#39;），&#39;c&#39;,&#39;d&#39;,&#39;e&#39;,array（&#39;1&#39;,&#39;2&#39;,&#39;3&#39;））；  //定义一个二维数组
    $s=implode（&#39;,&#39;,$arr）；
    echo $s;
    ?>

得到的结果是：

    a,b,Array,c,d,e,Array

很显然，对于多维数组，implode（）函数就无能为力了！那么多维数组怎样转字符串呢？如果先将多维数组转成一维数组，再通过implode（）函数合并成字符串，不就可以完成了吗！关于多维数组转一维数组可以参考这篇文章PHP多维数组转一维数组的简单实现方法

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