note 54981 added to function.stristr

You can use strstr() or strstri() to validate data! Check this out: <?php function validate_email($input) { if (!strstri($input, '@')) { return false; } return true; } function validate_url($input) { if (!strstri($input, 'http://')) { return false; } return true; } ?> Simple example: <?php if (!validate_email($_POST['email'])) { print 'You did not enter a valid email adress'; } if (!validate_url($_POST['url'])) { print 'You did not enter a valid url.'; } ?> ---- Manual Page -- http://www.php.net/manual/en/function.stristr.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+54981 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+54981&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+54981&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+54981&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+54981&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+54981&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+54981&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+54981&report=yes Search -- http://master.php.net/manage/user-notes.php