使用php函数验证字段的更好方法

为了验证给定字段，我编写了这样的函数。请审查和改进我的功能，以项目有价值的

我的领域

try{
    $message = 'First Name accepts keyboard characters only.';
    doValidateField ( $firstName, 'First Name', true, 100, '/^([a-zA-Z0-9._'- #,^&`~<>:!@$(){}'"'';'*'[']?%| 'n 'r 't]*)$/', $message );
} catch ( Exception $e ) {
    $errorMessage = $e->getMessage ();
    echo $errorMessage;
}

功能

/*
* The following function is validates the fields
* @params unknown values $fieldValue, $fieldName, $required, $maxLength, $mask, $message
* @return tables rows $rowResponse
*/
function doValidateField($fieldValue, $fieldName, $required, $maxLength, $mask, $message) {
    // Checking the required field is empty or not
    if ($required) {
        if (strlen ( $fieldValue ) <= 0) {
            throw new Exception ( $fieldName . " is required." );
        }
    }
    // Check field length is not greater than allowed length
    if (strlen ( $fieldValue ) > $maxLength) {
        throw new Exception ( $fieldName . " cannot be greater than " . $maxLength . " characters." );
    }
    // check if specified mask exists in the field
    if (! (preg_match ( $mask, $fieldValue ))) {
        throw new Exception ( $message );
    }
}