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title: echo和print效率测试对比 categories:

• 后端杂烩 tags:
• tech
• cnblogs
• php warning: true date: 2013-05-27 12:30:00 fromUrl: http://www.cnblogs.com/hustskyking/archive/2013/05/27/echo-print.html from: 博客园

<?php
    #echo print 函数效率测试对比
    $old = microtime(true);

    for($i = 0; $i < 10000000; $i++){
        echo "1";
    }

    $new = microtime(true);
    $one = $old - $new;
    echo $one . "\n"; #echo 函数测试结果

    $old = microtime(true);

    for($i = 0; $i < 10000000; $i++){
        print "1";
    }

    $new = microtime(true);
    $two = $old - $new;
    echo $two . "\n"; #print 函数测试结果

    echo ($two - $one) / $two; #效率比较
?>

$one:  0.35927200317383
$two:  0.42829704284668
($two - $one) / $two:  0.16116160694007

<h3><strong>结果分析</strong></h3>

int print(argument);
void echo(string argument1, [, ...string argumentN]);