PHP Simple generation of random number method, PHP generated random number
In this paper, we describe the simple method of generating random numbers in PHP. Share to everyone for your reference. Specific as follows:
<?php/** * Generate random number, can user verification code * @param */function randstr ($m = 5) { $new _str = '; $str = ' ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwsyz0123456789 '; $max =strlen ($STR)-1; for ($i = 1; $i <= $m; + + $i) { $new _str. = $str [Mt_rand (0, $max)]; } return $new _str;} Test $str = RANDSTR (6); Echo $str;
I hope this article is helpful to everyone's PHP programming.
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