Online PHP editor | output for jpHm9

<?php function closure_to_str($func) { $refl = new \ReflectionFunction($func); // get reflection object $path = $refl->getFileName(); // absolute path of php file $begn = $refl->getStartLine(); // have to `-1` for array index $endn = $refl->getEndLine(); $dlim = PHP_EOL; $list = explode($dlim, file_get_contents($path)); // lines of php-file source $list = array_slice($list, ($begn-1), ($endn-($begn-1))); // lines of closure definition $last = (count($list)-1); // last line number if((substr_count($list[0],'function')>1)|| (substr_count($list[0],'{')>1) || (substr_count($list[$last],'}')>1)) { throw new \Exception("Too complex context definition in: `$path`. Check lines: $begn & $endn."); } $list[0] = ('function'.explode('function',$list[0])[1]); $list[$last] = (explode('}',$list[$last])[0].'}'); return implode($dlim,$list); } $test = 10; $dog2 = function($var=0) use ($test){ $var = 10; echo $var . PHP_EOL; return $test . $var; }; echo closure_to_str($dog2)."\n\n";