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<?php $tests = [ 'This isXYZ a :exampleXYZa', 'isXYZ a :exampleXYZa abcXYZ', 'isXYZ a :exampleXYZXYZa abcXYZ', 'XYZ', 'XYZjdhf', 'This isXYZ a example:XYZa', 'äöüéèXYZ :äöüéèXYZäöüéè' ]; foreach($tests as $test){ if(preg_match_all('/\b((?<!:)\w*XYZ\w*)\b/ui',$test,$matches)){ print_r($matches[0]); } }
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => isXYZ ) Array ( [0] => isXYZ [1] => abcXYZ ) Array ( [0] => isXYZ [1] => abcXYZ ) Array ( [0] => XYZ ) Array ( [0] => XYZjdhf ) Array ( [0] => isXYZ ) Array ( [0] => äöüéèXYZ )

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