The use of "curl_multi_remove_handle" causes seg faults in pre 5.1 versions of PHP. Apparently this has been fixed.
http://bugs.php.net/bug.php?id=34420
curl_multi_exec
Description
int curl_multi_exec ( resource mh, int &still_running )| 警告 |
本函数暂无文档，仅有参数列表。 |
See also curl_multi_init() and curl_exec().
add a note
User Contributed Notes
blucasco at g mail com
08-Sep-2005 10:02
08-Sep-2005 10:02
dtorop933 at gmail dot com
08-Jan-2005 02:21
08-Jan-2005 02:21
Here is a revision of rhondle's example. It uses curl_multi_select() to reduce CPU usage while waiting on the network. It is also includes some error handling and cleanup code.
<?php
$connomains = array(
"http://www.cnn.com/",
"http://www.canada.com/",
"http://www.yahoo.com/"
);
$mh = curl_multi_init();
foreach ($connomains as $i => $url) {
$conn[$i] = curl_init($url);
curl_setopt($conn[$i], CURLOPT_RETURNTRANSFER, 1);
curl_multi_add_handle ($mh,$conn[$i]);
}
// start performing the request
do {
$mrc = curl_multi_exec($mh, $active);
} while ($mrc == CURLM_CALL_MULTI_PERFORM);
while ($active and $mrc == CURLM_OK) {
// wait for network
if (curl_multi_select($mh) != -1) {
// pull in any new data, or at least handle timeouts
do {
$mrc = curl_multi_exec($mh, $active);
} while ($mrc == CURLM_CALL_MULTI_PERFORM);
}
}
if ($mrc != CURLM_OK) {
print "Curl multi read error $mrc\n";
}
// retrieve data
foreach ($connomains as $i => $url) {
if (($err = curl_error($conn[$i])) == '') {
$res[$i]=curl_multi_getcontent($conn[$i]);
} else {
print "Curl error on handle $i: $err\n";
}
curl_multi_remove_handle($mh,$conn[$i]);
curl_close($conn[$i]);
}
curl_multi_close($mh);
print_r($res);
?>
rhondle at hotmail dot com
05-May-2004 03:55
05-May-2004 03:55
Here's a quick and dirty example for curl-multi from PHP, tested on PHP 5.0.0RC1 CLI / FreeBSD 5.2.1
<?php
$connomains = array(
"http://www.cnn.com/",
"http://www.canada.com/",
"http://www.yahoo.com/"
);
$mh = curl_multi_init();
foreach ($connomains as $i => $url) {
$conn[$i]=curl_init($url);
curl_setopt($conn[$i],CURLOPT_RETURNTRANSFER,1);
curl_multi_add_handle ($mh,$conn[$i]);
}
do { $n=curl_multi_exec($mh,$active); } while ($active);
foreach ($connomains as $i => $url) {
$res[$i]=curl_multi_getcontent($conn[$i]);
curl_close($conn[$i]);
}
print_r($res);
?>
-Marty
http://marty.anstey.ca/