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                2、PHP生成隨機字符串 當我們需要生成一個隨機名字,臨時密碼等字符串時可以用到下面的函數: ~~~ function generateRandomString($length = 10) { $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $randomString = ''; for ($i = 0; $i < $length; $i++) { $randomString .= $characters[rand(0, strlen($characters) - 1)]; } return $randomString; } ~~~ 使用方法如下: ~~~ echo generateRandomString(20); ~~~
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