Intersection of two regular expressions

Posted by Henry on Stack Overflow See other posts from Stack Overflow or by Henry
Published on 2010-06-03T14:29:43Z Indexed on 2010/06/03 14:34 UTC
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php

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regex

Hi,

Im looking for function (PHP will be the best), which returns true whether exists string matches both regexpA and regexpB.

Example 1: $regexpA = '[0-9]+'; $regexpB = '[0-9]{2,3}';

hasRegularsIntersection($regexpA,$regexpB) returns TRUE because '12' matches both regexps

Example 2: $regexpA = '[0-9]+'; $regexpB = '[a-z]+';

hasRegularsIntersection($regexpA,$regexpB) returns FALSE because numbers never matches literals.

Thanks for any suggestions how to solve this.

Henry

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