Online PHP editor | refs for Tt9Z6

<?php class Benchmark { private static $max, $memory; public static function memoryTick() { self::$memory = memory_get_usage() - self::$memory; self::$max = self::$memory>self::$max?self::$memory:self::$max; self::$memory = memory_get_usage(); debug_print_backtrace(); } public static function benchmarkMemory(callable $function, $args=null) { declare(ticks=1); self::$memory = memory_get_usage(); self::$max = 0; register_tick_function('call_user_func_array', ['Benchmark', 'memoryTick'], []); $result = is_array($args)? call_user_func_array($function, $args): call_user_func_array($function); unregister_tick_function('call_user_func_array'); return [ 'memory' => self::$max ]; } } var_dump(Benchmark::benchmarkMemory('str_repeat', ['test',1E4])); var_dump(Benchmark::benchmarkMemory('str_repeat', ['test',1E3]));