Validators

Regex Validator

This validator allows you to validate if a given string conforms a defined regular expression.

Supported options

The following options are supported for Laminas\Validator\Regex:

• pattern: Sets the regular expression pattern for this validator.

Usage

Validation with regular expressions allows complex validations without writing a custom validator.

$validator = new Laminas\Validator\Regex(['pattern' => '/^Test/']);

$validator->isValid("Test"); // returns true
$validator->isValid("Testing"); // returns true
$validator->isValid("Pest"); // returns false

The pattern uses the same syntax as preg_match(). For details about regular expressions take a look into PHP's manual about PCRE pattern syntax.

Pattern handling

It is also possible to set a different pattern afterwards by using setPattern() and to get the actual set pattern with getPattern().

$validator = new Laminas\Validator\Regex(['pattern' => '/^Test/']);
$validator->setPattern('ing$/');

$validator->isValid("Test"); // returns false
$validator->isValid("Testing"); // returns true
$validator->isValid("Pest"); // returns false