PHP 批量替换字符串

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PHPer 们应该都知道 str_replace 函数，而如何使用数组批量替换某字符串内的子串，这里有个骚操作。

话不多说，直接上代码：

$map = [
    'foo' => 'bar',
    // ...
];
$str = str_replace(array_keys($map), array_values($map), $str);