PHP call_user_func & call_user_func_array

对比范围

• 直接调用
• 变量函数调用
• call_user_func 调用
• call_user_func_array 调用

测试结果

call_user_func_array 所用时间为：1.1608240604401s

测试代码：

<?php error_reporting(E_ALL | E_STRICT); define('ITERATIONS', 2000000); class Bench { private $bench_name; private $start_time; private $end_time; public function start($name) { $this->bench_name = $name;
        $this->start_time = microtime(true);
    }

    public function end()
    {
        $this->end_time = microtime(true);
        echo "Call style: " . $this->bench_name . '; ' . ($this->end_time - $this->start_time) . " seconds". PHP_EOL;
    }
}

class Test
{
    public function test($a, $b, $c)
    {
        return;
    }
}


$bench = new Bench();
$test = new Test();
$arg = [1, 2, 3];
$func_name = 'test';

$bench->start('normal');
for ($i=0; $i < ITERATIONS; ++$i) { $test->test($arg[0], $arg[1], $arg[2]);
}
$bench->end();

$bench->start('var_function');
for ($i=0; $i < ITERATIONS; ++$i) { $test->$func_name($arg[0], $arg[1], $arg[2]);
}
$bench->end();

$bench->start('call_user_func');
for ($i=0; $i < ITERATIONS; ++$i) { call_user_func([$test, $func_name], $arg[0], $arg[1], $arg[2]); } $bench->end();

$bench->start('call_user_func_array');
for ($i=0; $i < ITERATIONS; ++$i) { call_user_func_array([$test, $func_name], $arg); } $bench->end();

Iterations: 100 000
Averaged over: 10
PHP 5.6.30 (cli) (built: Jan 18 2017 19:47:28)

Iterations: 100 000
Averaged over: 10
PHP 7.1.2 (cli) (built: Feb 14 2017 21:24:45)

.

资料来源：

https://segmentfault.com/q/1010000012081290