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Add function for running multiple curl queries simultaneously

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This commit is contained in:
Joshua Ramon Enslin 2020-12-14 02:01:53 +01:00
parent 34c2d57e5b
commit 2b4abf6338
Signed by: jrenslin
GPG Key ID: 46016F84501B70AE
1 changed files with 79 additions and 10 deletions
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89
MD_STD.php
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@ -174,6 +174,38 @@ final class MD_STD {
}
/**
* Initializes a curl request with the given presets.
*
* @param string $url URL to query.
* @param integer $timeout Timeout in milliseconds.
*
* @return resource
*/
public static function curl_init(string $url, int $timeout) {
$curl = \curl_init();
\curl_setopt($curl, CURLOPT_URL, $url);
\curl_setopt($curl, CURLOPT_HEADER, false);
\curl_setopt($curl, CURLOPT_CONNECTTIMEOUT_MS, $timeout); //timeout in seconds
\curl_setopt($curl, CURLOPT_TIMEOUT_MS, $timeout); //timeout in seconds
\curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
// \curl_setopt($curl, CURLOPT_COOKIESESSION, true);
\curl_setopt($curl, CURLOPT_AUTOREFERER, true);
\curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2');
/*
if (!file_exists(__DIR__ . '/../../curled.txt')) {
touch (__DIR__ . '/../../curled.txt');
}
file_put_contents(__DIR__ . '/../../curled.txt', $url . PHP_EOL, FILE_APPEND);
*/
return $curl;
}
/**
* Wrapper for curling contents from the web.
*
@ -184,17 +216,9 @@ final class MD_STD {
*/
public static function runCurl(string $url, int $timeout = 1200):string {
$curl = \curl_init();
\curl_setopt($curl, CURLOPT_URL, $url);
\curl_setopt($curl, CURLOPT_HEADER, false);
\curl_setopt($curl, CURLOPT_CONNECTTIMEOUT_MS, $timeout); //timeout in seconds
\curl_setopt($curl, CURLOPT_TIMEOUT_MS, $timeout); //timeout in seconds
$curl = self::curl_init($url, $timeout);
\curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
\curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
// \curl_setopt($curl, CURLOPT_COOKIESESSION, true);
\curl_setopt($curl, CURLOPT_AUTOREFERER, true);
\curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2');
$result = \curl_exec($curl);
// if ($err = curl_errno($curl)) echo $err;
@ -206,6 +230,51 @@ final class MD_STD {
}
/**
* Wrapper for curling multiple pages from the web at ones and returning their contents.
* Adapted from hushuilong's comment at https://www.php.net/manual/de/function.curl-multi-init.php#105252.
*
* @param array<string> $urls URL to query.
* @param integer $timeout Timeout in milliseconds.
*
* @return array<string>
*/
public static function runCurlMulti(array $urls, int $timeout = 1200):array {
if (!($mh = curl_multi_init())) {
throw new exception("Failed to set up multi handle");
}
$curl_array = [];
foreach($urls as $i => $url) {
$curl_array[$i] = self::curl_init($url, $timeout);
curl_setopt($curl_array[$i], CURLOPT_RETURNTRANSFER, true);
curl_multi_add_handle($mh, $curl_array[$i]);
}
$running = NULL;
do {
usleep(10000);
curl_multi_exec($mh, $running);
} while($running > 0);
$res = [];
foreach($urls as $i => $url) {
$res[$i] = curl_multi_getcontent($curl_array[$i]);
}
foreach($urls as $i => $url){
curl_multi_remove_handle($mh, $curl_array[$i]);
}
curl_multi_close($mh);
return $res;
}
/**
* Function lang_getfrombrowser gets the browser language based on HTTP headers.
*