PHP的多个卷曲URL与while循环 [英] php multiple curl urls with while loop

问题描述

我正在开发一个小脚本，使用几次curl和while循环使我有些混乱。

I am developing a small script and I am bit messed up with using a couple of curl and while loop.

我想在某个时候停止处理curl该网址之一正在向我提供信息。注意：我有多个curl请求。

I want to stop processing curl at a point when one of the URL is giving me a information. Note: I have multiple curl requests.

所以我的概念是，

我有几个URL，我必须处理并从中获取信息。如果在特定的URL上找到信息，它将给我一个字符串。如果找不到任何信息，它将没有任何价值。因此，我大约有10个网址需要处理。在所有情况下，任何一个URL都将为我提供信息，因此其余的URL将毫无价值。由于在那里处理大量URL，因此延迟是一个问题。因此，假设在下面的示例代码中，如果该URL以value2.php结尾给出了结果，那么我立即想停止处理其他URL。因为我已经得到结果，并且没有必要运行其他curl。然后，最后我必须打印结果。

I have a couple of URLS, which I have to process and get information from. If information is found on a particular URL, it will be giving me a string. If no information is found, it will give me no value. So I have nearly 10 URLs to process approximately. In all cases, any one of the URL will be giving me information, so the remaining urls will be producing no value. Since processing there much URLS, latency is a issue. So suppose in the sample code below, if the url ends with value2.php gives me a result, then I immediately wanted to stop processing the other URLs. Because I already got the result and no point in running other curl. Then finally I have to print the result.

另外，我还有一个条件，即任何URL都不会产生任何结果，如果有人向我展示如何处理该结果将非常有用。

Also I have a condition where none of the URL produce any result and it will be great if someone shows me how to handle that also.

我的示例代码。

<?php
///functions here
do {

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"example[dot]com/value1.php?process=$param");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$combined = curl_exec ($ch);
curl_close ($ch);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"example[dot]com/value2.php?process=$param");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$combined = curl_exec ($ch);
curl_close ($ch);


$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"example[dot]com/value3.php?process=$param");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$combined = curl_exec ($ch);
curl_close ($ch);


$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"example[dot]com/value4.php?process=$param");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$combined = curl_exec ($ch);
curl_close ($ch);


$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"example[dot]com/value5.php?process=$param");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$combined = curl_exec ($ch);
curl_close ($ch);


$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"example[dot]com/value6.php?process=$param");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$combined = curl_exec ($ch);
curl_close ($ch);


$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"example[dot]com/value7.php?process=$param");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$combined = curl_exec ($ch);
curl_close ($ch);


$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"example[dot]com/value8.php?process=$param");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$combined = curl_exec ($ch);
curl_close ($ch);


$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"example[dot]com/value9.php?process=$param");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$combined = curl_exec ($ch);
curl_close ($ch);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"example[dot]com/value10.php?process=$param");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$combined = curl_exec ($ch);
curl_close ($ch);

} while (strlen($combined) != 0);
echo $combied;

///functions here

?>

推荐答案

尝试以下操作：

<?php

function callCURL($url) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $combined = curl_exec ($ch);
    curl_close ($ch);
    return $combined;
}


function getResult($urls) {
    $return = array();

    foreach ($urls as $url) {
        $response = callCURL($url);
        if (strlen($response) !== 0) {
            $return[] = $response;
            break;
        }
    }
    return $return;
}

$urls = array("example.com/value1.php?process=$param", "example.com/value2.php?process=$param", "example.com/value3.php?process=$param")

$result = getResult($urls);

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