Please can anyone help with the PHP inbuilt function to check if the client name is within the email or Gmail he want to Summit

Question

PHP form validation/submission

Answer 1

Where is your attempt please?

Answer 2

$matchname = (explode(" ", $firstname,2 ));

If (preg_match ($matchname[1],$email) or preg_match($matchname[0],$email)){
$error.= "Email input doesn't match with your name";
$saveflag =false;
}
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https://www.sololearn.com/discuss/2461933/?ref=app