php 产生随机字符串
public function create_code($pw_length) { $randpwd = ""; for ($i = 0; $i < $pw_length; $i++) { $randpwd .= chr(mt_rand(33, 126)); } return urlencode($randpwd); }
public function create_code($pw_length) { $randpwd = ""; for ($i = 0; $i < $pw_length; $i++) { $randpwd .= chr(mt_rand(33, 126)); } return urlencode($randpwd); }