代码清单:
<?php /** * 检测输入中是否含有错误字符 * @author ruxing.li * @param char $string 要检查的字符串名称 * @return boolean */ function is_badword($string) { $badwords = array("\\",'&',' ',"'",'"','/','*',',','<','>',"\r","\t","\n","#"); foreach($badwords as $value){ if(strpos($string, $value) !== false) { return true; } } return false; } /** * 检查用户名是否符合规定 * @author ruxing.li * @param string $username 要检查的用户名 * @return boolean */ function is_username($username) { $strlen = strlen($username); if(is_badword($username) || !preg_match("/^[a-zA-Z0-9_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]+$/", $username)){ return false; } elseif ( 20 < $strlen || $strlen < 2 ) { return false; } return true; } var_dump(is_username('ruxing.li')); //boolean false var_dump(is_username('ruxingli')); //boolean true
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检查输入的用户名是否符合规定
时间: 2024-08-03 13:46:39