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<?php $regex = '~(?P<function_name>.*?)\s*(?P<parameters>\(.*?\))\s*~six'; //$regex = '/(?P<function_name>.+)\((?P<parameters>[^)]+)/'; //$regex = '/(?P<function_name>.+)\((?P<parameters>.*?)\)/'; preg_match($regex, 'printr("abc", "assdd")', $matches); print_r($matches);

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