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<?php //$regex = '/(?P<function_name>.*?)\s*\((?P<parameters>.*?)\)\s*/i'; $regex = '/(?P<function_name>.+)\s*\((?P<parameters>[^)]+)\s*/i'; //$regex = '/(?P<function_name>.+)\s*\((?P<parameters>.*?)\)\s*/i/'; preg_match($regex, 'HOUR(`date`, `abc1234`)', $matches); print_r($matches); $params = explode(',', $matches['parameters']); $chars = array_fill(0, count($params), '` '); var_dump($chars); $params2 = array_map('trim', $params, $chars); print_r($params2);
Output for 4.3.3 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => HOUR(`date`, `abc1234` [function_name] => HOUR [1] => HOUR [parameters] => `date`, `abc1234` [2] => `date`, `abc1234` ) array(2) { [0]=> string(2) "` " [1]=> string(2) "` " } Array ( [0] => date [1] => abc1234 )
Output for 4.3.0 - 4.3.2
Array ( [0] => HOUR(`date`, `abc1234` [1] => HOUR [2] => `date`, `abc1234` ) Notice: Undefined index: parameters in /in/tGAn7 on line 15 array(1) { [0]=> string(2) "` " } Array ( [0] => )