RE: How can I check for characters in a $_POST[] variable?
| From: | Eric | Date: | Thu, 22 Sep 2011 15:54:48 +0000 |
| Subject: | RE: How can I check for characters in a $_POST[] variable? | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-314979@lists.php.net to get a copy of this message | ||
if(preg_match('(.*)^[A-Za-z0-9]+', $_POST['username']) !== 0) {
echo "<p style=\"color:red;font-weight:bold;margin-left:95px\">";
echo "Username must only contain A-Z and 0-9</p>";
include("register.html");
exit;
}
I used the code above but I now get this error message
Warning: preg_match() [function.preg-match]: Unknown modifier '^' in C:\Documents and
Settings\iceweasel\Desktop\XAMPP\relik.ath.cx\forum\register.php on line 2
I don't like to run php with errors off so I wanna ask how I can fix this.