Online PHP editor | perf for anF8Y

<?php class TestClass { function getClosure() { return function () { var_dump($this); } } } $abc = "testABC"; $xyz = new TestClass(); $test = true; $x = function () use ($test, $xyz, $abc) { echo $abc; var_dump($test, $xyz); var_dump($this); }; $test = new TestClass(); echo packAnonFunction($x, $test, $xyz, $abc); echo packAnonFunction($test->getClosure()); function packAnonFunction($payload, ...$args) { $func = new ReflectionFunction($payload); $filename = $func->getFileName(); $start_line = $func->getStartLine() - 1; $end_line = $func->getEndLine(); $length = $end_line - $start_line; var_dump($func->getClosureThis()); $source = file($filename); $body = implode("", array_slice($source, $start_line, $length)); $body = preg_replace('/(?:(?:(\$[a-z]+)\s\=)|return)\sfunction/', '\\$payload = function', $body); if(preg_match('/use\s$(\$[a-zA-Z0-9]+(?:,\s\$[a-zA-Z0-9]+)*)$/', $body, $matches)) { $vars = $matches[1]; if(strpos($vars, ', ') !== false) { $parts = explode(', ', $vars); } else { $parts = [$vars]; } $body = str_replace(" use (" . $vars . ")", "", $body); } else { $parts = []; } if(strpos($body, '$this') !== false) { $parts[] = '$this'; $args[count($parts) - 1] = $func->getClosureThis(); } $return = []; foreach($parts as $key => $variable) { $return[$variable] = $args[$key]; } $variableString = ""; foreach($return as $var => $value) { $value = serialize($value); $variableString .= "\t{$var} = unserialize('{$value}');\n"; } $body = str_replace("{\n", "{\n" . $variableString, $body); return $body; }

Version	System time (s)	User time (s)	Memory (MiB)
7.0.0	0.003	0.097	20.24
5.6.16	0.007	0.080	20.55
5.6.15	0.017	0.070	18.25
5.6.14	0.013	0.070	18.18
5.6.13	0.000	0.043	18.18
5.6.12	0.010	0.053	21.15
5.6.11	0.013	0.077	21.00
5.6.10	0.007	0.087	20.89
5.6.9	0.003	0.093	21.11
5.6.8	0.017	0.077	20.37
5.5.30	0.013	0.050	17.92
5.5.29	0.003	0.050	17.99
5.5.28	0.013	0.070	20.86
5.5.27	0.007	0.070	20.98
5.5.26	0.003	0.043	20.96
5.5.25	0.003	0.087	20.62
5.5.24	0.020	0.077	20.13