php随机生成字符串可以自己定义自己所需要的长度,在实际应用开发中,经常遇到。
//随机生成字符串
function random($length) {
srand(date("s"));
$possible_charactors = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$string = "";
while(strlen($string) $string .= substr($possible_charactors,(rand()%(strlen($possible_charactors))),1);
}
return($string);
}
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