PHP FILTER_VALIDATE_EMAIL Filter
Example
Check if the variable $email is a valid email address:
<?php
$email = "john.doe@example.com";
if (!filter_var($email,
FILTER_VALIDATE_EMAIL) === false) {
echo("$email is a valid email
address");
} else {
echo("$email is not a valid email
address");
}
?>
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Definition and Usage
The FILTER_VALIDATE_EMAIL filter validates an e-mail address.
More Examples
The example below both sanitizes and validates an email address:
Example 1
First remove all illegal characters from the $email variable, then check if it is a valid email address:
<?php
$email = "john.doe@example.com";
// Remove all illegal
characters from email
$email = filter_var($email, FILTER_SANITIZE_EMAIL);
// Validate e-mail
if (!filter_var($email, FILTER_VALIDATE_EMAIL) ===
false) {
echo("$email is a valid email address");
}
else {
echo("$email is not a valid email address");
}
?>
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PHP Filter Reference
