1. 首頁
  2. 問答
  3. XML解析速度減慢

XML解析速度減慢

2013-05-10 169 views
0

我試圖從xml文件中通過產品代碼（也來自數據庫表）讀取價格表和庫存清單，並將結果放入MySQL表中。XML解析速度減慢

除xml文件的響應或讀取時間外，一切正常。 PHP腳本，數據庫和XML文件位於同一臺服務器上。查看Apache access.log後，我看到PHP腳本啓動後可以很快讀取（或響應）。但是，一段時間後，它只能讀取正好每分鐘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 "-" "-" 
[...]

給函數從XML文件中讀取價格：

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; 
}

的函數讀取XML的股票非常相似。

所有配置（MySQL，PHP，Apache）幾乎都是默認配置，沒有什麼特別的。我不知道爲什麼讀取速度，同時:(

服務器功能後出現故障：

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

來源

2013-05-10 Alisinasyon

回答

1

不使用HTTP來獲取網絡連接樂，只需調用文件直接

使用此代碼

$ URL = 「供稿/ price.xml」;

您也可以使用此代碼來獲取所有文件中的飼料目錄中，並得到變量的所有在$價格

$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);

來源

2013-05-10 11:54:44 soachishti

+0

謝謝SOAC。這真的幫了我:) – Alisinasyon 2013-05-10 13:40:20

相關問題

 相關問題