preg_match(): No ending delimiter '^' found [duplicate]

Question

Warning: preg_match(): No ending delimiter '^' found in .../functions/validations.php on line 29

The code:

 if (preg_match($mail_pat, $email, $components)) {

What and where do I make the edit?

Answer 1

Perl based regex should be inside the delimeters.. "/your regex here/".. the deprecated POSIX regex were the one which did not require any delimeter.. eg ereg(")

Answer 2

You must add delimiters to your regex:

if (preg_match('/' . $mail_pat . '/', $email, $components)) {

$mail_pat starts with a ^ but ends with another character, which causes the error since there are no matching delimiters.