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PHP Caching to speed up
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PHP¿Í SQL¼­¹ö¸¦ ÀÌ¿ëÇÑ À¥ÀÀ¿ëÇÁ·Î±×·¥¿¡°æ¿ì, °¡Àå °í·ÁÇÏ´Â ºÎºÐÀº Äõ¸®¹®À̰ÚÁö¿ä. Á¢¼ÓÀÚ¿Í Speed°ü°è¿¡¼­, Çϵå¿þ¾îÀûÀÎ ÇѰè¼Ó¿£ ¼ÒÇÁÆ®¿þ¾îÀÇ Ã³¸®°¡ ÀÖ°Ú½À´Ï´Ù.

ÀϹÝÀûÀ¸·Î ´ë±Ô¸ð Æ®·¡ÇÈÀÌ ¹ß»ýÇϴ°æ¿ì´Â ÆäÀÌÁö¿¡¼­ ´ÙÀÌ·ºÆ®·Î Äõ¸®¹®À» ÅëÇØ µ¥ÀÌÅ͸¦ »Ì¾Æ¿ÀÁö¾Ê½À´Ï´Ù. ±×·¡ÇÈÀ¸·Î ¼³¸íµå¸®°í½ÍÁö¸¸, ±×·¡ÇÈÅøÀÌ ¾ø´Â°ü°è·Î °£·«ÇÏ°Ô ¹¦»çÇØº¸¸é,

WebClient --->  WebServer ---> SQLServer  (¾Æ·¡·Î)
WebClient    <----  WebServer Return  <--- SQLServer Return

À§¿Í°°ÀÌ, Webserver¿¡¼­ phpÆÄ¼­¿Í°°ÀÌ Äڵ带 ÇØ¼®ÇÑÈÄ SQLServer·Î µ¥ÀÌÅ͸¦ ¿äûÇϰí, Á¤·ÄÇÏ¿© htmlÆ÷¸ËÀ¸·Î À¥Å¬¶óÀÌ¾ðÆ®¿¡°Ô ÀÀ´äÇØÁÝ´Ï´Ù.
±¸Çö¸ñÀû¿¡ µû¶ó ´Þ¶óÁö°ÚÁö¸¸, °Ô½ÃÆÇ°ú°°ÀÌ ½Ç½Ã°£À¸·Î Ãâ·ÂÇØÁà¾ßÇÏ´Â ÇüŰ¡ ¾Æ´Ï¶ó¸é ºñÈ¿À²ÀûÀϼöÀÖ°ÚÁÒ.

ÀÌ¿¡, ¾Æ·¡¿Í°°ÀÌ µ¿Àû󸮸¦¸¶Ä£ ÆÄÀÏÀ» cache ÀúÀåÇÕ´Ï´Ù.
5ºÐ°£Àº Á¢¼ÓÀÚ°¡ ¸î¸íÀ̵çÁö°£¿¡, SQL¿¡°Ô µ¥ÀÌÅ͸¦ ¹¯Áö¾Ê°íµµ php¿Í Çù·ÂÇÏ¿© ÆÄ½ÌÀ» ÇÏÁö¾Ê°íµµ À¥¼­¹ö´Â ±×³É ij½ÌµÈÆÄÀÏÀ» Àоî¿Í Ãâ·ÂÇØÁÖ¸é µÇ°ÚÁÒ.
¼­¹öºÎÇÏ¿Í ¼Óµµ´Â ´ç¿¬È÷ »¡¶óÁú°ÍÀÔ´Ï´Ù.

½±°Ô ¸»Çϸé, ÆÄÀÏ·Î ÀúÀåÇØµÎ°í 5ºÐ¿¡ Çѹø °»½ÅÇØÁִ°̴ϴÙ.
1ºÐ Á¢¼ÓÀÚ°¡ 1õ¸íÀ̶óÄ¡¸é  5õ¹øÀÇ À̺¥Æ®°¡ 1¹øÀ¸·Î Áִ°ŰÚÁÒ.


(?

   $reqfilename = "index";
   $cachefile = "cache/".$reqfilename.".xanadu";
   $cachetime = 5 * 60; //5 minutes
   // Serve from the cache if it is younger than $cachetime
   if (file_exists($cachefile) && (time() - $cachetime < filemtime($cachefile))) {
     include($cachefile);
     echo "<!-- Cached ".date('jS F Y H:i', filemtime($cachefile))." -->\n";
     exit;
   }


   // start the output buffer
   ob_start();
?)


Here is Page-Content home

(?
   $fp = fopen($cachefile, 'w'); // open the cache file for writing
   fwrite($fp, ob_get_contents()); // save the contents of output buffer to the file
   fclose($fp); // close the file

   // Send the output to the browser
   ob_end_flush();
?)

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