php regular expression match code example
Example 1: regex php
<?php
// First Verif your regex code with https://regex101.com/
$str = "Visit W3Schools";
$pattern = "/w3schools/i";
echo preg_match($pattern, $str); // Outputs 1
// test email with REGEX
if (!preg_match("/[-0-9a-zA-Z.+_]+@[-0-9a-zA-Z.+_]+.[a-zA-Z]{2,4}/", $emailAddress)){
//Email address is invalid.
}
// use filter var to valide Email
if(filter_var($emailAddress, FILTER_VALIDATE_EMAIL))
{
//The email address is valid.
} else{
//The email address is invalid.
}
?>
Example 2: preg_match in php
<?php
$line = "Vi is the greatest word processor ever created!";
// perform a case-Insensitive search for the word "Vi"
if (preg_match("/\bVi\b/i", $line, $match)) :
print "Match found!";
endif;
?>