好吧，所以在过去的 3 个小时里，我一直在为此绞尽脑汁，并且疯狂地在谷歌上搜索，却没有解决问题。因此，我编写了一个示例脚本来重现这一点，因为我的原始脚本大约有 800 行。
<?php
set_time_limit(0);
ini_set('max_input_time', '-1');
ini_set('max_execution_time', '0');
error_log("executing script... ");
$time = time();
for ($t = 0; $t <= 15; $t++) {
error_log("Logging: $t (".(time()-$time)." seconds)");
sleep(5);
}
error_log("execution done (".(time()-$time)." seconds)");
?>
现在，sleep 函数只是用来重新创建页面的执行时间，并没有在原始代码中使用。这将在 error_log 文件中产生以下结果
[Tue Nov 06 16:24:14 2012] executing script...
[Tue Nov 06 16:24:14 2012] Logging: 0 (0 seconds)
[Tue Nov 06 16:24:19 2012] Logging: 1 (5 seconds)
[Tue Nov 06 16:24:24 2012] Logging: 2 (10 seconds)
[Tue Nov 06 16:24:29 2012] Logging: 3 (15 seconds)
[Tue Nov 06 16:24:34 2012] Logging: 4 (20 seconds)
[Tue Nov 06 16:24:39 2012] Logging: 5 (25 seconds)
[Tue Nov 06 16:24:44 2012] Logging: 6 (30 seconds)
[Tue Nov 06 16:24:49 2012] Logging: 7 (35 seconds)
[Tue Nov 06 16:24:54 2012] Logging: 8 (40 seconds)
[Tue Nov 06 16:24:59 2012] Logging: 9 (45 seconds)
[Tue Nov 06 16:25:04 2012] Logging: 10 (50 seconds)
[Tue Nov 06 16:25:09 2012] Logging: 11 (55 seconds)
[Tue Nov 06 16:25:14 2012] executing script...
[Tue Nov 06 16:25:14 2012] Logging: 0 (0 seconds)
[Tue Nov 06 16:25:14 2012] Logging: 12 (60 seconds)
[Tue Nov 06 16:25:19 2012] Logging: 1 (5 seconds)
[Tue Nov 06 16:25:19 2012] Logging: 13 (65 seconds)
[Tue Nov 06 16:25:24 2012] Logging: 2 (10 seconds)
[Tue Nov 06 16:25:24 2012] Logging: 14 (70 seconds)
[Tue Nov 06 16:25:29 2012] Logging: 3 (15 seconds)
[Tue Nov 06 16:25:29 2012] Logging: 15 (75 seconds)
[Tue Nov 06 16:25:34 2012] Logging: 4 (20 seconds)
[Tue Nov 06 16:25:34 2012] execution done (80 seconds)
[Tue Nov 06 16:25:39 2012] Logging: 5 (25 seconds)
[Tue Nov 06 16:25:44 2012] Logging: 6 (30 seconds)
[Tue Nov 06 16:25:49 2012] Logging: 7 (35 seconds)
[Tue Nov 06 16:25:54 2012] Logging: 8 (40 seconds)
[Tue Nov 06 16:25:59 2012] Logging: 9 (45 seconds)
[Tue Nov 06 16:26:04 2012] Logging: 10 (50 seconds)
[Tue Nov 06 16:26:09 2012] Logging: 11 (55 seconds)
[Tue Nov 06 16:26:14 2012] Logging: 12 (60 seconds)
[Tue Nov 06 16:26:19 2012] Logging: 13 (65 seconds)
[Tue Nov 06 16:26:24 2012] Logging: 14 (70 seconds)
[Tue Nov 06 16:26:29 2012] Logging: 15 (75 seconds)
[Tue Nov 06 16:26:34 2012] execution done (80 seconds)
这是来自 phpinfo 的一些相关设置
=== apache2handler ===
Max Requests: Per Child: 1000 - Keep Alive: on - Max Per Connection: 200
Timeouts: Connection: 300 - Keep-Alive: 2
=== PHP Version 5.4.5 Core Settings ===
max_execution_time Local: 0 Master: 30
max_input_time Local: -1 Master: -1
我已经尝试了我能想到的一切。它似乎是使用 Apache 或 PHP 的服务器设置，因为当我在本地主机上运行相同的脚本时，它会成功执行，就像它应该没有双重负载一样。在它被问到之前，是的，每次我进行 INI 更改或 apache 配置更改时，我都在重新启动 apache。
此外，这里是上面示例的 access_log 条目。
*.*.*.* - - [06/Nov/2012:16:43:56 -0700] "GET /test.php HTTP/1.1" 200 20 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0" *.*.*.* *********.com 80 55050278 1012 321 *.*.*.*
*.*.*.* - - [06/Nov/2012:16:44:56 -0700] "GET /test.php HTTP/1.1" 200 20 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0" *.*.*.* *********.com 80 60054985 1012 321 *.*.*.*
一旦执行时间达到 60 秒，肯定会执行此操作，因为当我将执行时间更改为 55 秒时，它会按原样运行一次。
[Tue Nov 06 16:46:00 2012] executing script...
[Tue Nov 06 16:46:00 2012] Logging: 0 (0 seconds)
[Tue Nov 06 16:46:05 2012] Logging: 1 (5 seconds)
[Tue Nov 06 16:46:10 2012] Logging: 2 (10 seconds)
[Tue Nov 06 16:46:15 2012] Logging: 3 (15 seconds)
[Tue Nov 06 16:46:20 2012] Logging: 4 (20 seconds)
[Tue Nov 06 16:46:25 2012] Logging: 5 (25 seconds)
[Tue Nov 06 16:46:30 2012] Logging: 6 (30 seconds)
[Tue Nov 06 16:46:35 2012] Logging: 7 (35 seconds)
[Tue Nov 06 16:46:40 2012] Logging: 8 (40 seconds)
[Tue Nov 06 16:46:45 2012] Logging: 9 (45 seconds)
[Tue Nov 06 16:46:50 2012] Logging: 10 (50 seconds)
[Tue Nov 06 16:46:55 2012] execution done (55 seconds)
对此的任何帮助将不胜感激！