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PHP curl_multi_exec function

PHP curl_multi_exec function

PHP Calendar Reference Manual PHP cURL Reference Manual

(PHP 5)

curl_multi_exec - Run Sub current cURL handle connection


Explanation

int curl_multi_exec ( resource $mh , int &$still_running )

Processing in the stack each handle. Whether the handle needs to read or write data can call this method.


parameter

mh

By the curl_multi_init () returns multiple cURL handles.

still_running

A reference to determine whether the operation is still identified executed.


return value

A predefined constants defined in the cURL The cURL code.

Note: This function returns only on the entire batch stack-related errors.A single transmission may still be a problem even when returning CURLM_OK.


Examples

This example will create two cURL handles, add them to handle the batch, and then run them in parallel.

<?php
// 创建一对cURL资源
$ch1 = curl_init();
$ch2 = curl_init();

// 设置URL和相应的选项
curl_setopt($ch1, CURLOPT_URL, "http://lxr.php.net/");
curl_setopt($ch1, CURLOPT_HEADER, 0);
curl_setopt($ch2, CURLOPT_URL, "http://www.php.net/");
curl_setopt($ch2, CURLOPT_HEADER, 0);

// 创建批处理cURL句柄
$mh = curl_multi_init();

// 增加2个句柄
curl_multi_add_handle($mh,$ch1);
curl_multi_add_handle($mh,$ch2);

$active = null;
// 执行批处理句柄
do {
    $mrc = curl_multi_exec($mh, $active);
} while ($mrc == CURLM_CALL_MULTI_PERFORM);

while ($active && $mrc == CURLM_OK) {
    if (curl_multi_select($mh) != -1) {
        do {
            $mrc = curl_multi_exec($mh, $active);
        } while ($mrc == CURLM_CALL_MULTI_PERFORM);
    }
}

// 关闭全部句柄
curl_multi_remove_handle($mh, $ch1);
curl_multi_remove_handle($mh, $ch2);
curl_multi_close($mh);

?>

PHP Calendar Reference Manual PHP cURL Reference Manual