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run code in 150+ php & hhvm versions
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<?php /*$string = explode(',', $string); foreach ($string as $key => $val) $string[$key] = trim($string[$key]); $arrKeywords = explosion(",", $strKeywords) foreach($arrKeywords as $index => $word) $arrKeywords[$index] = trim($word); */ //$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']); $params = array_map('trim', $params); var_dump($params); $chars = array_fill(0, count($params), '` '); $params2 = array_map('trim', $params, $chars); print_r($params2);
Output for 4.3.3 - 5.6.21, 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(6) "`date`" [1]=> string(9) "`abc1234`" } Array ( [0] => date [1] => abc1234 )
Output for 4.3.0 - 4.3.2
Array ( [0] => HOUR(`date`, `abc1234` [1] => HOUR [2] => `date`, `abc1234` ) array(1) { [0]=> string(0) "" } Array ( [0] => )