file_get_contents、cur、fsockopen

来源：互联网发布：规则引擎 php 编辑：程序博客网时间：2024/04/29 18:24

1 curl ：需要php支持php_curl

<?php$url = "http://www.sina.com.cn/";$ch = curl_init($url);curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);curl_setopt($ch, CURLOPT_TIMEOUT, 60);$info = curl_exec($ch) or die("curl失败<br/>");echo strlen($info)."<br/>";

2 file_get_contents：需要支持all_url_fopen

<?php$url = "http://www.sina.com.cn/";$ctx = stream_context_create(array(    'http' => array(        'timeout' => 60        )    ));$info=file_get_contents($url, 0, $ctx)or die("file_get_contents超时<br/>"); echo strlen($info)."<br/>";

3 fsockopen

<?php$url = "http://www.sina.com.cn/";$urlInfo = parse_url($url);$host = $urlInfo['host'];$sock = fsockopen($host, 80, $errno, $errstr, 60);if (!$sock) {    echo "fsockopen$errno<br />\n";} else {$out = "GET / HTTP/1.1\r\n";$out .= "Host: " . $host . "\r\n";$out .= "Connection: Close\r\n\r\n";fwrite($sock, $out);    while (!feof($sock)) {        $info = $info . fgets($sock, 128);    }            fclose($sock);    echo strlen($info)."<br/>";    }

目前测试:

运行时间（s）

ab -n1000 -c1000

File_get_contents

1.403

curl

1.390

fsockopen

1.270

ab -n2000 -c1000

File_get_contents

4.446

curl

4.786

fsockopen

5.185

ab -n3000 -c1000

File_get_contents

4.177

curl

4.467

fsockopen

4.649

ab -n4000 -c1000

File_get_contents

5.656

curl

5.153

fsockopen

5.324

ab -n5000 -c1000

File_get_contents

14.111

curl

11.737

fsockopen

13.123