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XML解析速度减慢

2013-05-10 143 views
0

我试图从xml文件中通过产品代码（也来自数据库表）读取价格表和库存清单，并将结果放入MySQL表中。XML解析速度减慢

除xml文件的响应或读取时间外，一切正常。 PHP脚本，数据库和XML文件位于同一台服务器上。查看Apache access.log后，我看到PHP脚本启动后可以很快读取（或响应）。但是，一段时间后，它只能读取正好每分钟1：

[...] 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:11:21 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:12:22 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:13:22 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:14:22 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
::1 - - [09/May/2013:13:15:04 +0300] "GET/HTTP/1.1" 200 1007 "-" "Mozilla/5.0 (ISPConfig monitor)" 
1.2.3.4 - - [09/May/2013:13:15:22 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:16:22 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:17:22 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:18:22 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:19:22 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
::1 - - [09/May/2013:13:20:03 +0300] "GET/HTTP/1.1" 200 1007 "-" "Mozilla/5.0 (ISPConfig monitor)" 
1.2.3.4 - - [09/May/2013:13:20:22 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:21:22 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:22:22 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:23:22 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:24:22 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
::1 - - [09/May/2013:13:25:03 +0300] "GET/HTTP/1.1" 200 1007 "-" "Mozilla/5.0 (ISPConfig monitor)" 
1.2.3.4 - - [09/May/2013:13:25:23 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:26:23 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:27:23 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:28:23 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:29:23 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
::1 - - [09/May/2013:13:30:04 +0300] "GET/HTTP/1.1" 200 1007 "-" "Mozilla/5.0 (ISPConfig monitor)" 
1.2.3.4 - - [09/May/2013:13:30:23 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:31:23 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:32:23 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:33:23 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:34:23 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
::1 - - [09/May/2013:13:35:03 +0300] "GET/HTTP/1.1" 200 1007 "-" "Mozilla/5.0 (ISPConfig monitor)" 
1.2.3.4 - - [09/May/2013:13:35:23 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:36:23 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:37:23 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
1.2.3.4 - - [09/May/2013:13:38:23 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
1.2.3.4 - - [09/May/2013:13:39:24 +0300] "GET /feeds/price.xml HTTP/1.0" 200 82143 "-" "-" 
::1 - - [09/May/2013:13:40:03 +0300] "GET/HTTP/1.1" 200 1007 "-" "Mozilla/5.0 (ISPConfig monitor)" 
1.2.3.4 - - [09/May/2013:13:40:24 +0300] "GET /feeds/stock.xml HTTP/1.0" 200 16202 "-" "-" 
[...]

给函数从XML文件中读取价格：

function get_price($product_id, $source='xml'){ 
    $price  = NULL; 
    $url = "http://www.mydomain.com/feeds/price.xml"; 

    $xml = simplexml_load_file($url); 
    $Price = $xml->xpath("//PRODUCT[@CODE='". $product_id ."']"); 

    return $price; 
}

的函数读取XML的股票非常相似。

所有配置（MySQL，PHP，Apache）几乎都是默认配置，没有什么特别的。我不知道为什么读取速度，同时:(

服务器功能后出现故障：

  • CentOS版本6.4（最终）
  • ISPConfig 3.0.5.2
  • 的Apache/2.2.15（ UNIX）
  • MySQL的69年5月1日
  • PHP 5.3.3

来源

2013-05-10 Alisinasyon

回答

1

不使用HTTP来获取网络连接乐，只需调用文件直接

使用此代码

$ URL = “供稿/ price.xml”;

您也可以使用此代码来获取所有文件中的饲料目录中，并得到变量的所有在$价格

$Price = ""; 
foreach (glob("feeds/*.xml") as $filename) { //Getting all xml files from feeds direcotry 
     $xml = simplexml_load_file("feeds/".$filename); 
     $Price .= $xml->xpath("//PRODUCT[@CODE='". $product_id ."']"); 
    } 
    print_r($Price);

来源

2013-05-10 11:54:44 soachishti

+0

谢谢SOAC。这真的帮了我:) – Alisinasyon 2013-05-10 13:40:20

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