简化一段PHP代码,重复次数过多

Question

无法真正弄清楚如何简化这一点.我想要的是获取这几页的内容并在我的网站上显示.是正确的方法只是为我想要的每个页面重复file_get_contents,或者我可以用另一种方式(也许是一个file_get_contents函数中的所有网站？).此外,其余的代码只是重复自我.我这整个代码只是减慢了我的网站.如果有人愿意伸出援助之手:),非常感谢你.

<?php
//Obtain Quote Info - This collects the Microsoft Stock Info
  $quote10 = file_get_contents('http://finance.google.com/finance/info?client=ig&q=NYSE:GLD');
  $quote9 = file_get_contents('http://finance.google.com/finance/info?client=ig&q=INDEXEURO:PX1');
  $quote8 = file_get_contents('http://finance.google.com/finance/info?client=ig&q=INDEXDJSTOXX:SX5E');
  $quote7 = file_get_contents('http://finance.google.com/finance/info?client=ig&q=INDEXFTSE:UKX');
  $quote4 = file_get_contents('http://finance.google.com/finance/info?client=ig&q=INDEXNIKKEI:NI225');
  $quote5 = file_get_contents('http://finance.google.com/finance/info?client=ig&q=SHA:000001');
  $quote4 = file_get_contents('http://finance.google.com/finance/info?client=ig&q=INDEXDJX:.DJI');
  $quote3 = file_get_contents('http://finance.google.com/finance/info?client=ig&q=INDEXNASDAQ:.IXIC');
  $quote2 = file_get_contents('http://finance.google.com/finance/info?client=ig&q=INDEXSP:.INX');
  $quote = file_get_contents('http://finance.google.com/finance/info?client=ig&q=NASDAQ:GOOG');
  $quote1 = file_get_contents('http://finance.google.com/finance/info?client=ig&q=NASDAQ:YHOO');

  //Remove CR's from ouput - make it one line
  $json = str_replace("\n", "", $quote);
  $json1 = str_replace("\n", "", $quote1);
  $json2 = str_replace("\n", "", $quote2);
  $json3 = str_replace("\n", "", $quote3);
  $json4 = str_replace("\n", "", $quote4);
  $json5 = str_replace("\n", "", $quote5);
  $json6 = str_replace("\n", "", $quote6);
  $json7 = str_replace("\n", "", $quote7);
  $json8 = str_replace("\n", "", $quote8);
  $json9 = str_replace("\n", "", $quote9);
  $json10 = str_replace("\n", "", $quote10);


  //echo $json['45']; 
  //Remove //, [ and ] to build qualified string  
  $data = substr($json, 4, strlen($json) -5);
  $data1 = substr($json1, 4, strlen($json1) -5);
  $data2 = substr($json2, 4, strlen($json2) -5);
  $data3 = substr($json3, 4, strlen($json3) -5);
  $data4 = substr($json4, 4, strlen($json4) -5);
  $data5 = substr($json5, 4, strlen($json5) -5);
  $data6 = substr($json6, 4, strlen($json6) -5);
  $data7 = substr($json7, 4, strlen($json7) -5);
  $data8 = substr($json8, 4, strlen($json8) -5);
  $data9 = substr($json9, 4, strlen($json9) -5);
  $data10 = substr($json10, 4, strlen($json10) -5);

  //decode JSON data
  $json_output = json_decode($data, true);
  $json_output1 = json_decode($data1, true);
  $json_output2 = json_decode($data2, true);
  $json_output3 = json_decode($data3, true);
  $json_output4 = json_decode($data4, true);
  $json_output5 = json_decode($data5, true);
  $json_output6 = json_decode($data6, true);
  $json_output7 = json_decode($data7, true);
  $json_output8 = json_decode($data8, true);
  $json_output9 = json_decode($data9, true);
  $json_output10 = json_decode($data10, true);


  //Un-remark print_r to see all array keys
  //print_r($json_output);

  //Output Stock price array key.
  echo "\n".$json_output['t'],"\n".$json_output['l'],"\n".$json_output['cp'];echo "<br />"; 
  echo "\n".$json_output1['t'],"\n".$json_output1['l'],"\n".$json_output1['cp'];echo "<br />"; 
  echo "\n".$json_output2['t'],"\n".$json_output2['l'],"\n".$json_output2['cp'];echo "<br />"; 
  echo "\n".$json_output3['t'],"\n".$json_output3['l'],"\n".$json_output3['cp'];echo "<br />";
  echo "\n".$json_output4['t'],"\n".$json_output4['l'],"\n".$json_output4['cp'];echo "<br />";
  echo "\n".$json_output5['t'],"\n".$json_output5['l'],"\n".$json_output5['cp'];echo "<br />";
  echo "\n".$json_output6['t'],"\n".$json_output6['l'],"\n".$json_output6['cp'];echo "<br />";
  echo "\n".$json_output7['t'],"\n".$json_output7['l'],"\n".$json_output7['cp'];echo "<br />";
  echo "\n".$json_output8['t'],"\n".$json_output8['l'],"\n".$json_output8['cp'];echo "<br />";
  echo "\n".$json_output9['t'],"\n".$json_output9['l'],"\n".$json_output9['cp'];echo "<br />";
  echo "\n".$json_output10['t'],"\n".$json_output10['l'],"\n".$json_output10['cp'];

Answer 1

只需为每个循环使用一个数组和一个.

 $stock_array = array('NYSE:GLD', 'INDEXEURO:PX1', 'INDEXDJSTOXX:SX5E', etc..);

 foreach ($stock_array as $stock) {

 $quote = file_get_contents('http://finance.google.com/finance/info?client=ig&q='.$stock);

 $json = str_replace("\n", "", $quote);
 $data = substr($json, 4, strlen($json) -5);
 $json_output = json_decode($data, true);
 echo "\n".$json_output['t'],"\n".$json_output['l'],"\n".$json_output['cp'];echo "<br />"; 

 }

菲尔,希望这会有所帮助