PHP 5 to 7 ereg?

[jefferis]

I folks,  I have some old forms on client sites that broke with the upgrade to php 7.  I am wondering which PCRE to replace this following bit of code, which seems to be the only one in the form that is deprecated: 

function CheckEmail($email, $optional) {
 if ( (strlen($email) == 0) && ($optional === kOptional) ) {
  return true;
 } elseif ( eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$", $email) ) {
  return true;
 } else {
  return false;
 }
}

Just preg?   or one of these? diamond.php

 

• PCRE Functions
  • preg_filter — Perform a regular expression search and replace
  • preg_grep — Return array entries that match the pattern
  • preg_last_error — Returns the error code of the last PCRE regex execution
  • preg_match_all — Perform a global regular expression match
  • preg_match — Perform a regular expression match
  • preg_quote — Quote regular expression characters
  • preg_replace_callback_array — Perform a regular expression search and replace using callbacks
  • preg_replace_callback — Perform a regular expression search and replace using a callback
  • preg_replace — Perform a regular expression search and replace
  • preg_split — Split string by a regular expression

I'm not doing much coding anymore. However, what happened was when the form was filled out and posted, instead of running the form's code, the actual php file downloaded.  

TIA,

Jeff 

[Psycho]

Use the PHP filter_var() function to validate a properly formatted email address

 

http://php.net/manual/en/filter.examples.validation.php