实现PHP多线程异步请求的3种方法

复制代码 代码如下:

<?php
$cl = curl_init();
$curl_opt = array(CURLOPT_URL, 'http://www.uncletoo.com/demo.php',
CURLOPT_RETURNTRANSFER, 1,
CURLOPT_TIMEOUT, 1,);
curl_setopt_array($cl, $curl_opt);
curl_exec($ch);
curl_close($ch);
?>

复制代码 代码如下:

<?php
$file = popen("/bin/ls","r");
//这里是要执行的代码
//...
pclose($file);
?>

复制代码 代码如下:

$fp = fsockopen("www.uncletoo.com/demo.php", 80, $errno, $errstr, 30);
if (!$fp) {
echo "$errstr ($errno)<br />/n";
} else {
$out = "GET /index.php / HTTP/1.1/r/n";
$out .= "Host: /r/n";
$out .= "Connection: Close/r/n/r/n";

fwrite($fp, $out);
/*这里忽略执行结果
*测试时可以打开
while (!feof($fp)) {
echo fgets($fp, 128);
}*/
fclose($fp);
}