How to change PHP’s eregi to preg_match [duplicate]

by

Perl-style regex patterns always need to be delimited. The very first character in the string is considered the delimiter, so something like this:

function validate_email($email) {
    if (!preg_match("/^[[:alnum:]][a-z0-9_.-]*@[a-z0-9.-]+\.[a-z]{2,4}$/i", $email)) {
        echo 'bad email';
    } else {
        echo 'good email';
    }
}

The reason your initial attempt didn’t work is because it was trying to use ^ as the delimiter character but (obviously) found no matching ^ for the end of the regex.

More Related Contents:

  1. Query database then email posts from where user is subbed to
  2. how can i send an attachment with php using (mail) [duplicate]
  3. Send email with PHP from html form on submit with the same script
  4. Send HTML in email via PHP
  5. Sending email with gmail smtp with codeigniter email library
  6. How to change from-address when using gmail smtp server
  7. How can I convert ereg expressions to preg in PHP?
  8. preg_match and UTF-8 in PHP
  9. php mail() function on localhost
  10. How to get the content-type of a file in PHP?
  11. Sending mass email using PHP
  12. “vertical” regex matching in an ASCII “image”
  13. Phpmailer error “Could not instantiate mail function”
  14. How to send email from localhost WAMP Server to send email Gmail Hotmail or so forth? [duplicate]
  15. can’t send email to addresses at my own domain
  16. PHP : send mail in localhost
  17. Could not instantiate mail function. Why this error occurring
  18. How to get email address from a long string
  19. php send mail from localhost
  20. PHP mail: Multiple recipients?
  21. Laravel mail: pass string instead of view
  22. PHP mail() attachment problems
  23. php regex word boundary matching in utf-8
  24. Setting up PHPMailer with Office365 SMTP
  25. how to send an HTML email with an inline attached image with PHP
  26. Why is my e-mail still being picked up as spam? Using mail() function
  27. How to block Disposable Email Addresses in your website’s registration form? [closed]
  28. Send emails with international accent and special characters
  29. PHP mail() works from command line but not apache
  30. phpmailer – The following SMTP Error: Data not accepted

Leave a Comment