【发布时间】：2016-05-07 11:38:58
【问题描述】：
我确实有这个源代码：
LIST_CUSTOMERS.PHP
<head>
<script src="http://code.jquery.com/jquery-2.2.0.min.js"></script>
</head>
<select name='customers' id='customers'>
<option value='john'>John</option>
<option value='james'>James</option>
</select>
<script>
$('select').on('change', function()
{
var username = $('#customers').find(":selected").text();
$.post("display.php", {user : username}, function(result)
{
$("#content").html(result);
});
});
</script>
<div id="content" style="width: 100%; height: 800px;">
</div>
DISPLAY.PHP
<?php
include "function.php";
if(isset($_POST["user"]))
{
echo webLogin($_POST["user"], "1ex!AM?plE2");
}
?>
FUNCTION.PHP
<?php
function get_string_between($string, $start, $end)
{
$string = ' ' . $string;
$ini = strpos($string, $start);
if ($ini == 0) return '';
$ini += strlen($start);
$len = strpos($string, $end, $ini) - $ini;
return substr($string, $ini, $len);
}
function curlRequest($url,$data)
{
$fp = fopen("cookie.txt", "w");
fclose($fp);
$login = curl_init();
curl_setopt($login, CURLOPT_COOKIEJAR, "cookie.txt");
curl_setopt($login, CURLOPT_COOKIEFILE, "cookie.txt");
curl_setopt($login, CURLOPT_TIMEOUT, 40000);
curl_setopt($login, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($login, CURLOPT_URL, $url);
curl_setopt($login, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
curl_setopt($login, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($login, CURLOPT_POST, TRUE);
curl_setopt($login, CURLOPT_POSTFIELDS, $data);
ob_start();
return curl_exec ($login);
ob_end_clean();
curl_close ($login);
unset($login);
}
function webLogin($user, $pass)
{
// LoginURL
$loginUrl = 'http://webmail.example.com/login.php';
// Formfields Login
$form_fields_1 = array(
'user' => $user,
'pass' => $pass
);
// Formfields Mails
$form_fields_2 = array(
'message_id' => 0,
);
// Log into website
$content = curlRequest($loginUrl, $form_fields_1);
// Get the number of messages
if(strpos($content, "0 Mails.")==false)
{
// Got mails! -> Get exact number of emails
$buffer = get_string_between($buffer,"<div id='number_of_mails'>","</div>");
// Delete old content
$content = "";
// Create link to read mail
$link = "http://webmail.example.com/mailbox.php";
// Display all emails
for($i=0; $i<=(int)$buffer-1; $i++)
{
$form_fields_2['message_id'] = $i + 1;
// Login ... AGAIN ...
$fp = fopen("cookie.txt", "w");
fclose($fp);
$login = curl_init();
curl_setopt($login, CURLOPT_COOKIEJAR, "cookie.txt");
curl_setopt($login, CURLOPT_COOKIEFILE, "cookie.txt");
curl_setopt($login, CURLOPT_TIMEOUT, 40000);
curl_setopt($login, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($login, CURLOPT_URL, $loginUrl);
curl_setopt($login, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
curl_setopt($login, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($login, CURLOPT_POST, TRUE);
curl_setopt($login, CURLOPT_POSTFIELDS, $form_fields_1);
// Get email with id $i+1
curl_setopt($login, CURLOPT_URL, $link);
curl_setopt($login, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
curl_setopt($login, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($login, CURLOPT_POST, TRUE);
curl_setopt($login, CURLOPT_POSTFIELDS, $form_fields_3);
ob_start();
// Write results in $mail_content
$mail_content = curl_exec ($login);
ob_end_clean();
curl_close ($login);
unset($login);
// Compose output
$content.="Message " . $form_fields_2['message_id'] . ": <br/>";
$content.=get_string_between($mail_content,"<div class=\"messages\">","</div>");
$content.="</br><br/>";
}
}
else
{
// Got no mails!
$content = "Keine Mails!";
}
return $content;
}
?>
这基本上是登录到 http://webmail.example.com，获取一些电子邮件并为我显示它们。我在 XAMPP 的本地计算机上运行它，并从我的远程邮件服务器（Horde Webmail）请求一些东西。一切正常。
问题是，在 30 分钟内执行了大约 50-60 次后，我突然收到一条消息：“超过 30 秒的最大执行时间”。我当然知道我可以只更改我的 XAMPP 中的参数并且它会起作用，但这不是我想要做的，因为它会变慢。有谁知道为什么在几次 CURL-Request 之后它变得如此缓慢，我该如何防止呢？
【问题讨论】：
-
你为什么认为它与卷曲有关？您是否检查了远程服务器上的日志/响应时间？
-
我应该检查什么特别的东西？我查看了日志，没有什么特别的。
-
weblmail.example.com 服务器端的时间？