true false regex php code example

Example 1: preg_match in php

<?php
$my_email = "[email protected]";
if (preg_match("/^[a-zA-Z0-9._-]+@[a-zA-Z0-9-]+\.[a-zA-Z.]{2,5}$/", $my_email)) {
echo "$my_email is a valid email address";
}
else
{
  echo "$my_email is NOT a valid email address";
}
?>

Example 2: preg_match in php

int preg_match (string pattern, string string [, array pattern_array], [, int $flags [, int $offset]]]);