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Email address validation

22/04/2015PHPfilter_var(), PHP, preg_match(), validationfoxbeefly

Hoo boy we have to do this all the time and a quick Google tells me everyone has their favorite little tricks. Some even work.

Here are the results of an exercise in email validation using two different PHP options, namely:

filter_var($email, FILTER_VALIDATE_EMAIL));

1	filter_var($email, FILTER_VALIDATE_EMAIL));

preg_match('/^([a-z0-9])(([-a-z0-9._])*([a-z0-9]))*\@([a-z0-9])*(\.([a-z0-9])([-a-z0-9_-])([a-z0-9])+)*$/i', $email);

1	preg_match('/^([a-z0-9])(([-a-z0-9._])([a-z0-9]))\@([a-z0-9])(\.([a-z0-9])([-a-z0-9_-])([a-z0-9])+)$/i', $email);