PHP FILTER_VALIDATE_REGEXP filter

Definition and usage

The FILTER_VALIDATE_REGEXP filter validates values ​​against a Perl-compatible regular expression.

Name: "validate_regexp"

ID-number: 272

Possible options:

regexp - specifies the regular expression against which validation is based

Example

 <?php$string = "Match this string";var_dump(filter_var($string, FILTER_VALIDATE_REGEXP,array("options"=>array("regexp"=>"/^M(.*)/"))))? >

The output of the code looks like this:

 string(17) "Match this string"