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<?php var_dump(filter_var('123.56', FILTER_VALIDATE_REGEXP,array("options"=>array("regexp"=>"/^([1-9][0-9]*|0)(\.[0-9]{2})?$/")))); var_dump(filter_var('abc34', FILTER_VALIDATE_REGEXP,array("options"=>array("regexp"=>"/\d+(?:\.\d{1,2})?/")))); var_dump(filter_var('123.56', FILTER_VALIDATE_REGEXP,array("options"=>array("regexp"=>"~^\\d+(?:\\.\\d{1,2})?$~"))));
Output for git.master, git.master_jit, rfc.property-hooks
string(6) "123.56" string(5) "abc34" string(6) "123.56"

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