多捲曲，錯誤處理

Question

我正在與多捲曲，並想知道如何處理錯誤。我想檢查發生了哪個錯誤，如果它是一個錯誤，超過了速率限制，我想在延遲一段時間後重新抓取該鏈接（sleep（））。我的問題是：「是否有可以爲我做的這個函數的構建，還是我需要收集數組中的所有Url，然後再運行一次？」

這是我現在得到：

<?php 

$urls = array( "https://API-URL.com", 
       "https://API-URL.com", 
       "https://API-URL.com", 
       "https://API-URL.com", 
       ...); 

//create the multiple cURL handle 
$mh = curl_multi_init(); 

//Number of elements in $urls 
$nbr = count($urls); 

// set URL and options 
for($x = 0; $x < $nbr; $x++){ 

    // create both cURL resources 
    $ch[$x] = curl_init(); 

    // set URL and other appropriate options 
    curl_setopt($ch[$x], CURLOPT_URL, $urls[$x]); 
    curl_setopt($ch[$x], CURLOPT_RETURNTRANSFER, true); 
    curl_setopt($ch[$x], CURLOPT_SSL_VERIFYPEER, false); 

    //add the two handles 
    curl_multi_add_handle($mh,$ch[$x]); 
} 

//execute the handles 
do { 
    curl_multi_exec($mh, $running); 
} while ($running); 

for($x = 0; $x < $nbr; $x++){ 
    $result = curl_multi_getcontent($ch[$x]); 

    $decoded = json_decode($result, true); 

    //get info about the request 
    $error = curl_getinfo($ch[$x], CURLINFO_HTTP_CODE); 

    //error handling 
    if($error != 200){ 

     $again[] = array("Url" => $urls[$x], "errornbr" => $error); 

    } else { 

     // Here I do what ever I want with the data 
    } 

    curl_multi_remove_handle($mh, $ch[$x]); 
    curl_close($ch[1]); 
} 

curl_multi_close($mh); 
?> 

Answer 1

在第二個for循環，當你騎自行車通過捲曲處理程序來檢查什麼了每個捲曲處理程序返回後，我希望，這種做法將回答你的問題

foreach ($ch as $key => $h) { 

//This code is actually checking for any error that may occur, whatever that 
//error is you can handle it in the if-part of the condition. and save those 
//urls to the array $again to call them on a later stage. 

if (curl_errno($h)) { 

//this is how you will get complete information what did happened to the 
//curl handler. And why did it fail. All the inforation will be stored in //error_info. 

$again[] = array("Url" =>curl_getinfo($h, CURLINFO_EFFECTIVE_URL), "error_info" => curl_getinfo($h)); 

} 
else{ 

//here you will handle the success scenario for each curl handler. 

$responses[$key] = ['data' => curl_multi_getcontent($h)]; 
} 

//remove curl handler as you are doing in the loop 

}