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run code in 150+ php & hhvm versions
Bugs & Features
<?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']); $params = array_map('trim', $params); $chars = array_fill(0, count($params), '`'); $params = array_map('trim', $params, $chars); print_r($params);
Output for 4.3.3 - 7.1.0
Array ( [0] => HOUR(`date`, ` abc1234 ` [function_name] => HOUR [1] => HOUR [parameters] => `date`, ` abc1234 ` [2] => `date`, ` abc1234 ` ) 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/MFPJh on line 13 Array ( [0] => )