What are the potential issues with using the strpos function in PHP for email validation?

Using the strpos function for email validation may not be reliable as it only checks for the presence of a specific character in the email address. It does not verify the overall structure of the email address. To solve this issue, it is recommended to use PHP's built-in filter_var function with the FILTER_VALIDATE_EMAIL filter for more accurate email validation. 

$email = "example@example.com";

if (filter_var($email, FILTER_VALIDATE_EMAIL)) {
    echo "Valid email address";
} else {
    echo "Invalid email address";
}

Keywords

strpos email validation PHP false positives edge cases

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