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curl_multi_getcontent

(PHP 5, PHP 7, PHP 8)

curl_multi_getcontent如果设置了 CURLOPT_RETURNTRANSFER,则返回 cURL 句柄的内容

说明

curl_multi_getcontent(CurlHandle $handle): ?string

如果 CURLOPT_RETURNTRANSFER 是为指定句柄设置的选项,则此函数将会以字符串的形式返回 cURL 句柄的内容。

参数

handle

curl_init() 返回的 cURL 句柄。

返回值

如果设置了 CURLOPT_RETURNTRANSFER,则返回 cURL 句柄的内容,不设置的话返回 null

更新日志

版本 说明
8.0.0 handle 现在接受 CurlHandle 实例;之前接受 resource

参见

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User Contributed Notes 3 notes

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21
michael at xendica dot com
10 years ago
This seems to work as expected for me - allowing me to get the content from a curl_multi operation into variables :

(Thanks go to many other notes in related documentation (there is much copy/pasting) all I did was add the relevant line(s))

<?
$aURLs = array("http://www.php.net","http://www.w3cschools.com"); // array of URLs
$mh = curl_multi_init(); // init the curl Multi

$aCurlHandles = array(); // create an array for the individual curl handles

foreach ($aURLs as $id=>$url) { //add the handles for each url
$ch = curl_setup($url,$socks5_proxy,$usernamepass);
$ch = curl_init(); // init curl, and then setup your options
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); // returns the result - very important
curl_setopt($ch, CURLOPT_HEADER, 0); // no headers in the output

$aCurlHandles[$url] = $ch;
curl_multi_add_handle($mh,$ch);
}

$active = null;
//execute the handles
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);
}
}

/* This is the relevant bit */
// iterate through the handles and get your content
foreach ($aCurlHandles as $url=>$ch) {
$html = curl_multi_getcontent($ch); // get the content
// do what you want with the HTML
curl_multi_remove_handle($mh, $ch); // remove the handle (assuming you are done with it);
}
/* End of the relevant bit */

curl_multi_close($mh); // close the curl multi handler

?>
up
-1
butesa at freenet dot de
10 years ago
You can use curl_multi_getcontent() on a curl handle that was executed with curl_exec() (and not added to a multi handle).
However, this is not very useful because curl_multi_getcontent() will return the same as curl_exec() then.

<?php
$ch
= curl_init('http://www.example.com/');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$a = curl_exec($ch);
$b = curl_multi_getcontent($ch);
var_dump($a === $b);
curl_close($ch);
?>
will return:

bool(true)
up
-6
nolife
6 years ago
It's probably a bug in the curl multi implementation:

In many many cases you keep the curl connection alive after a curl_exec().
With curl_multi that's not possible if you don't do this after every get_content() :
curl_multi_remove_handle($ch);
curl_multi_add_handle($ch);

I've not yet tested if this also breaks the keepalive connection but if you don't do this you'll just get the old previous response after each curl_multi_exec()
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