What is a Regular Expression in 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.
}
?>
4
4
A regular expression is a sequence of characters that forms a search pattern.
Thank you!
4
4
(4 Votes)
0
3.7
10
preg_match('/(foo)(bar)(baz)/', 'foobarbaz', $matches, PREG_OFFSET_CAPTURE);
Thank you!
10
3.7
(10 Votes)
0
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