带有while循环的php多个curl url

Question

我正在开发一个小脚本，我对使用几个 curl 和 while 循环有点困惑。

我想在其中一个 URL 给我信息时停止处理 curl。注意:我有多个 curl 请求。

所以我的想法是，

我有几个 URLS，我必须处理它们并从中获取信息。如果在特定 URL 上找到信息，它将给我一个字符串。如果找不到任何信息，它将不会给我任何值(value)。所以我大约有将近 10 个 URL 需要处理。在所有情况下，任何一个 URL 都会给我信息，因此其余的 URL 将不会产生任何值(value)。由于处理了很多 URL，延迟是一个问题。所以假设在下面的示例代码中，如果以 value2.php 结尾的 url 给我一个结果，那么我立即想停止处理其他 url。因为我已经得到了结果并且没有必要运行其他 curl 。最后我必须打印结果。

此外，我还有一个条件，即所有 URL 都不会产生任何结果，如果有人向我展示如何处理该问题，那就太好了。

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

?>

Answer 1

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);