What common errors can occur when checking emails in PHP?

One common error when checking emails in PHP is not validating the email address properly, leading to potential security vulnerabilities or incorrect data handling. To solve this, you can use PHP's built-in filter_var function with the FILTER_VALIDATE_EMAIL flag to ensure the email address is in a valid format. 

$email = "example@example.com";

if (filter_var($email, FILTER_VALIDATE_EMAIL)) {
    echo "Email address is valid";
} else {
    echo "Email address is not valid";
}

Keywords

syntax error email validation regular expression SMTP error handling

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