$string = "The quick brown fox jumps over the lazy dog."; $pattern = "/brown fox/"; // Assert that the pattern matches the string $this->assertRegExp($pattern, $string);
$string = "2019-03-15"; $pattern = "/\d{4}-\d{2}-\d{2}/"; // Assert that the pattern matches the string $this->assertRegExp($pattern, $string);In this example, we use assertRegExp to verify that the string matches the format of a date represented as "YYYY-MM-DD". We specify the pattern using regular expression syntax to match four digits, followed by a hyphen, two digits, another hyphen, and two more digits. The PHPUnit_Framework_Assert class is a part of the PHPUnit library, which is an open-source unit testing framework for PHP. It provides a wide range of features and functionality for testing PHP code, including a robust set of assertion methods like assertRegExp.