Php 多次卷曲

Php 多次卷曲,php,curl,cron,Php,Curl,Cron,上面的代码是通过php中的cron作业运行的。在hotels表中有5个trip\u url。这意味着curl应该执行5次,并从服务器返回结果5次,但是 但当我运行此操作时,只会打印一个结果并停止执行。尝试一下: $hotel_query = "select hotel_id,hotel_name,trip_url,automatic_status from hotels where automatic_status='0'"; $hotel_result = mysql_query($hotel

上面的代码是通过php中的cron作业运行的。在hotels
表中有5个trip\u url。这意味着curl应该执行5次,并从服务器返回结果5次,但是
但当我运行此操作时,只会打印一个结果并停止执行。

尝试一下:

$hotel_query = "select hotel_id,hotel_name,trip_url,automatic_status from hotels where automatic_status='0'";
$hotel_result = mysql_query($hotel_query) or die(mysql_error());
while($hotel_row = mysql_fetch_object($hotel_result))
{
     $url=$hotel_row->trip_url;
     $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $result = curl_exec($ch);
    curl_close($ch);
    echo curl_error($ch);
    echo $result;
}

尝试使用以下方法:mysql\u fetch\u array($hotel\u result))是否确定查询正常。。。试着把打印出来($hotel\u row);在while循环中,这样它每次都会回响。如果这给了你5个结果,那么我们可以继续前进。是的,它给了5个结果。@christ当我认为你的Curl代码可能有缺陷时,试试我在下面发布的代码-看看会发生什么
Curl\u error($ch)
curl\u关闭($ch)之后。此时,
$ch
不再是一个curl资源。您是否尝试手动打开链接以确保页面存在?好的-那么它是五次给出相同的1结果,还是只输出一次就消失了尝试上面更新的新代码
<?php

function curl_download($Url){

    // is cURL installed yet?
    if (!function_exists('curl_init')){
        die('Sorry cURL is not installed!');
    }    
    // OK cool - then let's create a new cURL resource handle
    $ch = curl_init();    
    // Now set some options (most are optional)    
    // Set URL to download
    curl_setopt($ch, CURLOPT_URL, $Url);    
    // Set a referer
    curl_setopt($ch, CURLOPT_REFERER, "http://www.example.org/yay.htm");    
    // User agent
    curl_setopt($ch, CURLOPT_USERAGENT, "MozillaXYZ/1.0");    
    // Include header in result? (0 = yes, 1 = no)
    curl_setopt($ch, CURLOPT_HEADER, 0);    
    // Should cURL return or print out the data? (true = return, false = print)
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);    
    // Timeout in seconds
    curl_setopt($ch, CURLOPT_TIMEOUT, 10);    
    // Download the given URL, and return output
    $output = curl_exec($ch);    
    // Close the cURL resource, and free system resources
    curl_close($ch);    
    return $output;
}

$loop_counter = 1;
$hotel_query = "select hotel_id,hotel_name,trip_url,automatic_status from hotels where automatic_status='0'";
$hotel_result = mysql_query($hotel_query) or die(mysql_error());
while($hotel_row = mysql_fetch_object($hotel_result)){
     $url=$hotel_row->trip_url;
    echo "Loop no.".$loop_counter."<br />";
    echo curl_download($url);
    $loop_counter++;
}



?>