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<?php //https://github.com/php/php-src/blob/master/Zend/micro_bench.php function hallo() { } function simpleucall($n) { for ($i = 0; $i < $n; $i++) hallo(); } function simpleudcall($n) { for ($i = 0; $i < $n; $i++) hallo2(); } function hallo2() { } function simpleicall($n) { for ($i = 0; $i < $n; $i++) func_num_args(); } class Foo { static $a = 0; public $b = 0; const TEST = 0; static function read_static($n) { for ($i = 0; $i < $n; ++$i) { $x = self::$a; } } static function write_static($n) { for ($i = 0; $i < $n; ++$i) { self::$a = 0; } } static function isset_static($n) { for ($i = 0; $i < $n; ++$i) { $x = isset(self::$a); } } static function empty_static($n) { for ($i = 0; $i < $n; ++$i) { $x = empty(self::$a); } } static function f() { } static function call_static($n) { for ($i = 0; $i < $n; ++$i) { self::f(); } } function read_prop($n) { for ($i = 0; $i < $n; ++$i) { $x = $this->b; } } function write_prop($n) { for ($i = 0; $i < $n; ++$i) { $this->b = 0; } } function assign_add_prop($n) { for ($i = 0; $i < $n; ++$i) { $this->b += 2; } } function pre_inc_prop($n) { for ($i = 0; $i < $n; ++$i) { ++$this->b; } } function pre_dec_prop($n) { for ($i = 0; $i < $n; ++$i) { --$this->b; } } function post_inc_prop($n) { for ($i = 0; $i < $n; ++$i) { $this->b++; } } function post_dec_prop($n) { for ($i = 0; $i < $n; ++$i) { $this->b--; } } function isset_prop($n) { for ($i = 0; $i < $n; ++$i) { $x = isset($this->b); } } function empty_prop($n) { for ($i = 0; $i < $n; ++$i) { $x = empty($this->b); } } function g() { } function call($n) { for ($i = 0; $i < $n; ++$i) { $this->g(); } } function read_const($n) { for ($i = 0; $i < $n; ++$i) { $x = $this::TEST; } } } function read_static($n) { for ($i = 0; $i < $n; ++$i) { $x = Foo::$a; } } function write_static($n) { for ($i = 0; $i < $n; ++$i) { Foo::$a = 0; } } function isset_static($n) { for ($i = 0; $i < $n; ++$i) { $x = isset(Foo::$a); } } function empty_static($n) { for ($i = 0; $i < $n; ++$i) { $x = empty(Foo::$a); } } function call_static($n) { for ($i = 0; $i < $n; ++$i) { Foo::f(); } } function create_object($n) { for ($i = 0; $i < $n; ++$i) { $x = new Foo(); } } define('TEST', null); function read_const($n) { for ($i = 0; $i < $n; ++$i) { $x = TEST; } } function read_auto_global($n) { for ($i = 0; $i < $n; ++$i) { $x = $_GET; } } $g_var = 0; function read_global_var($n) { for ($i = 0; $i < $n; ++$i) { $x = $GLOBALS['g_var']; } } function read_hash($n) { $hash = array('test' => 0); for ($i = 0; $i < $n; ++$i) { $x = $hash['test']; } } function read_str_offset($n) { $str = "test"; for ($i = 0; $i < $n; ++$i) { $x = $str[1]; } } function issetor($n) { $val = array(0,1,2,3,4,5,6,7,8,9); for ($i = 0; $i < $n; ++$i) { $x = $val ?: null; } } function issetor2($n) { $f = false; $j = 0; for ($i = 0; $i < $n; ++$i) { $x = $f ?: $j + 1; } } function ternary($n) { $val = array(0,1,2,3,4,5,6,7,8,9); $f = false; for ($i = 0; $i < $n; ++$i) { $x = $f ? null : $val; } } function ternary2($n) { $f = false; $j = 0; for ($i = 0; $i < $n; ++$i) { $x = $f ? $f : $j + 1; } } /*****/ function empty_loop($n) { for ($i = 0; $i < $n; ++$i) { } } function getmicrotime() { $t = gettimeofday(); return ($t['sec'] + $t['usec'] / 1000000); } function start_test() { ob_start(); return getmicrotime(); } function end_test($start, $name, $overhead = null) { global $total; global $last_time; $end = getmicrotime(); ob_end_clean(); $last_time = $end-$start; $total += $last_time; $num = number_format($last_time,3); $pad = str_repeat(" ", 24-strlen($name)-strlen($num)); if (is_null($overhead)) { echo $name.$pad.$num."\n"; } else { $num2 = number_format($last_time - $overhead,3); echo $name.$pad.$num." ".$num2."\n"; } ob_start(); return getmicrotime(); } function total() { global $total; $pad = str_repeat("-", 24); echo $pad."\n"; $num = number_format($total,3); $pad = str_repeat(" ", 24-strlen("Total")-strlen($num)); echo "Total".$pad.$num."\n"; } const N = 5000000; $t0 = $t = start_test(); empty_loop(N); $t = end_test($t, 'empty_loop'); $overhead = $last_time; simpleucall(N); $t = end_test($t, 'func()', $overhead); simpleudcall(N); $t = end_test($t, 'undef_func()', $overhead); simpleicall(N); $t = end_test($t, 'int_func()', $overhead); Foo::read_static(N); $t = end_test($t, '$x = self::$x', $overhead); Foo::write_static(N); $t = end_test($t, 'self::$x = 0', $overhead); Foo::isset_static(N); $t = end_test($t, 'isset(self::$x)', $overhead); Foo::empty_static(N); $t = end_test($t, 'empty(self::$x)', $overhead); read_static(N); $t = end_test($t, '$x = Foo::$x', $overhead); write_static(N); $t = end_test($t, 'Foo::$x = 0', $overhead); isset_static(N); $t = end_test($t, 'isset(Foo::$x)', $overhead); empty_static(N); $t = end_test($t, 'empty(Foo::$x)', $overhead); Foo::call_static(N); $t = end_test($t, 'self::f()', $overhead); call_static(N); $t = end_test($t, 'Foo::f()', $overhead); $x = new Foo(); $x->read_prop(N); /*$t = end_test($t, '$x = $this->x', $overhead); $x->write_prop(N); $t = end_test($t, '$this->x = 0', $overhead); $x->assign_add_prop(N); $t = end_test($t, '$this->x += 2', $overhead); $x->pre_inc_prop(N); $t = end_test($t, '++$this->x', $overhead); $x->pre_dec_prop(N); $t = end_test($t, '--$this->x', $overhead); $x->post_inc_prop(N); $t = end_test($t, '$this->x++', $overhead); $x->post_dec_prop(N); $t = end_test($t, '$this->x--', $overhead); $x->isset_prop(N); $t = end_test($t, 'isset($this->x)', $overhead); $x->empty_prop(N); $t = end_test($t, 'empty($this->x)', $overhead); $x->call(N); $t = end_test($t, '$this->f()', $overhead); $x->read_const(N); $t = end_test($t, '$x = Foo::TEST', $overhead); create_object(N); $t = end_test($t, 'new Foo()', $overhead); read_const(N); $t = end_test($t, '$x = TEST', $overhead); read_auto_global(N); $t = end_test($t, '$x = $_GET', $overhead); read_global_var(N); $t = end_test($t, '$x = $GLOBALS[\'v\']', $overhead); read_hash(N); $t = end_test($t, '$x = $hash[\'v\']', $overhead); read_str_offset(N); $t = end_test($t, '$x = $str[0]', $overhead); issetor(N); $t = end_test($t, '$x = $a ?: null', $overhead); issetor2(N); $t = end_test($t, '$x = $f ?: tmp', $overhead); ternary(N); $t = end_test($t, '$x = $f ? $f : $a', $overhead); ternary2(N); $t = end_test($t, '$x = $f ? $f : tmp', $overhead); */ total($t0, "Total");

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