cURL 和 PHP 显示“1" [英] cURL and PHP displaying "1"

问题描述

我有一个 PHP 脚本，我想用它从数据库读取服务器并使用 cURL 连接到它们.服务器响应来自 sql 查询的结果.问题是服务器每次响应后的脚本显示数字 1.输出如下所示:

I have a PHP script with which I want to read servers from database and connect to them with cURL. Servers responds with results from sql query. The problem is that script after each respond from server displays number 1. The ouput looks like this:

服务器 1:一些结果

1Server 2:一些结果

1Server 2: some results

1Server 3:一些结果

1Server 3: some results

1

这是从数据库读取服务器并连接到它们的代码:

Here is the code that reads servers from database and connects to them:

<?php

$mysql_id = mysql_connect('localhost', 'ms', 'pass');
mysql_select_db('servers', $mysql_id);
mysql_query("SET NAMES utf8");

$query = "SELECT * FROM svr";
$result = mysql_query($query);
$num = mysql_num_rows($result);
while ($data = mysql_fetch_assoc($result))
{
    $server[] = $data;
}

mysql_close($mysql_id);

$i = 0;
while($i < $num) {
    $dealer = $server[$i]['dealer'];

    echo $dealer . "<br />";

    $data = "val=a"; //just for testing                                                                    

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");                                                                     
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);    
    curl_setopt($ch, CURLOPT_HTTPHEADER, array(                                                                                                                                                       
        'Content-Type: text/html; charset=utf-8')                                                                       
    );                                                                                                                                                                                   

    $result = curl_exec($ch);
    echo $result;
    $i++;
}

?>

我发现 1 显示为 "echo $result;"创建响应的代码是这样的:

I discovered that 1 is displayed with "echo $result;" and the code for creating response is this:

<?php

$mysql_id1 = mysql_connect('localhost', 'ms', 'pass');
mysql_select_db('servers', $mysql_id1);
mysql_query("SET NAMES utf8");

    $query2 = "SELECT * FROM data";
    $result2 = mysql_query($query2);
    $num2 = mysql_num_rows($result2);
    while ($data2 = mysql_fetch_assoc($result2))
    {
        $deli[] = $data2;
    }
    $i1 = 0;
    $space = "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
    while ($i1 < $num2) {
        echo $space . $deli[$i1]['id'] . " ";
        echo $deli[$i1]['artikel'] . " ";
        echo $deli[$i1]['znamka'] . " ";
        echo $deli[$i1]['model'] . " ";
        echo $deli[$i1]['letnik'] . " ";
        echo $deli[$i1]['cena'] . " € ";
        echo $deli[$i1]['zaloga'] . "<br />";
        $i1++;
    }
    echo "<br />";
    mysql_close($mysql_id1);
?>

请帮帮我

推荐答案

使用 CURLOPT_RETURNTRANSFER 选项.否则 cURL 会自动回显数据，只返回 true(通过 echo 转换为 1).

Use the CURLOPT_RETURNTRANSFER option. Otherwise cURL will automatically echo the data and just return true (which is converted to 1 by echo).

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

PHP.net 说，

TRUE 将传输作为 curl_exec() 的返回值的字符串返回，而不是直接输出.

TRUE to return the transfer as a string of the return value of curl_exec() instead of outputting it directly.

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