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<?php

//simplecounter1.php

$filename = "counter.dat";

$file = fopen($filename, "r");
$count = fread($file, filesize($filename));

fclose($file);

$count = $count + 1;
print "$count";

$file = fopen($filename, "w");
fwrite($file, $count);
fclose($file);

?>

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count.dat¥Õ¥¡¥¤¥ë¤ò¤Þ¤ººî¤Ã¤Æ¤¢¤²¤Þ¤·¤ç¤¦¡¥

# echo 0 > count.dat
# chmod 606 count.dat

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$filename = "count.dat";

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$file = fopen($filename,"r");

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$count = fread($file, filesize($filename));

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fclose($file);

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$count = $count + 1;
print "count = $count";

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$file = fopen($filename,"w");
fwrite($file, $count);
fclose($file);

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simplecounter2.php¤ò¡¢°Ê²¼¤ÎÆâÍƤǺîÀ®¤·¤Æ¤¯¤À¤µ¤¤¡£
count.dat¤ÏÀè¤Û¤É¤È¶¦Ä̤Τâ¤Î¤ò»È¤¤¤Þ¤·¤ç¤¦¡£

<?php

//simplecounter2.php

$filename = "counter.dat";

$file = fopen($filename, "r+"); //­¡
flock($file, 2); //­¢
$count = fread($file, filesize($filename));

//fclose($file);

$count = $count + 1;
print "count = $count";

rewind($file);

//$file = fopen($filename,"w");

fwrite($file, $count);
flock($file, 3); //­£
fclose($file); //­¤

?>

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$file = fopen($filename,"r+"); //­¡

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flock($file, 2); //­¢

flock¤Ï¡¢¥Õ¥¡¥¤¥ë¥í¥Ã¥¯Áàºî´Ø¿ô¤Ç¤¹¡£
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flock($file, 3); //­£

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rewind($file); //­¤

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<php?

  $filename = "count_IP.dat";
  $file = fopen($filename,"r+");
  flock($file, 2);

  $count = fgets($file,256);
  $lastIP = fgets($file,256); $IP = getenv("REMOTE_ADDR");

  $count = chop($count);

  if($lastIP != $IP)
$count = $count + 1;

  print("$count");

  //print("lastIP=$lastIP");
  //print("IP=$IP");


  ftruncate($file,0);

  rewind($file);

  fwrite($file, $count);
  fwrite($file, "\n");
  fwrite($file, $IP);

  flock($file, 3);
  fclose($file);

?>

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¤Þ¤º¡¢²¼½àÈ÷¤ò¤·¤Þ¤¹¡£
count_IP.dat¤ò°Ê²¼¤ÎÆâÍƤǺîÀ®¤·¤Æ¤¯¤À¤µ¤¤¡£

0
localhost

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$count = fgets($file,256);
$lastIP = fgets($file,256);

º£²ó¤ÏˬÌä²ó¿ô¤È¡¢ºÇ½ªË¬Ìä¼Ô¤ÎIP¥¢¥É¥ì¥¹¤È¡¢Æó¤Ä¤Î¥Ç¡¼¥¿¤ò»ÈÍѤ·¤Þ¤¹¡£

$IP = getenv("REMOTE_ADDR");

´Ä¶­ÊÑ¿ô¤è¤ê¡¢±ÜÍ÷¼Ô¤ÎIP¥¢¥É¥ì¥¹¤ò¼èÆÀ¤·¤Þ¤¹¡£

$count = chop($count)

chop´Ø¿ô¤Ë¤è¤ê¡¢Ê¸»úÎóËöÈø¤Î²þ¹Ôµ­¹æ¤ò¼è¤ê½ü¤¤¤Æ¤¤¤Þ¤¹¡£

if($lastIP != $IP)$count = $count + 1;

if¹½Ê¸¤¬¤Ç¤Æ¤­¤Þ¤·¤¿¡£
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if (¾ò·ï) ¾ò·ï¤¬À®Î©¤¹¤ë¾ì¹ç¤Îʸ;
else ¾ò·ï¤¬À®Î©¤·¤Ê¤¤¾ì¹ç¤Îʸ;

(¡¡)Æâ¤Î¾ò·ï¤¬À®Î©¤¹¤ë¾ì¹ç¤Ë¤Ï¡¢(¡¡)°Ê¹ß¤ò¼Â¹Ô¤·¡¢¤½¤¦¤Ç¤Ê¤¤¾ì¹ç¤Ë¤Ïelseʸ°Ê¹ß¤ò¼Â¹Ô¤·¤Þ¤¹¡£
elseʸ¤Ï¾Êά¤Ç¤­¤Þ¤¹¡£
º£²ó¤Î¾ì¹ç¡¢¥Õ¥¡¥¤¥ë¤Ëµ­Ï¿¤µ¤ì¤Æ¤¤¤ë¡ÖºÇ½ªË¬Ìä¼Ô¤ÎIP¥¢¥É¥ì¥¹¡×¤È¡¢¡Ö±ÜÍ÷¼Ô¤ÎIP¥¢¥É¥ì¥¹¡×
¤¬°Û¤Ê¤Ã¤Æ¤¤¤ë¾ì¹ç¤Ë¤Ï$count¤Ë£±¤ò²Ã¤¨¡¢¤½¤¦¤Ç¤Ê¤¤¾ì¹ç¤Ï¤Ê¤Ë¤â¤·¤Þ¤»¤ó¡£

//print("<b>lastIP=$lastIP");
//print("<BR>IP=$IP");

//¡¡¤³¤Îµ­¹æ¤Ï¡¢¡Ö¥³¥á¥ó¥È¡×¤ò°ÕÌ£¤·¤Þ¤¹¡£
//°Ê¹ß¤Îʸ¤Ï¡¢¥×¥í¥°¥é¥à¤È¤·¤ÆPHP¤Ë²ò¼á¤µ¤ì¤Þ¤»¤ó¡£¤Ä¤Þ¤ê¡¢¤Ê¤Ë¤ò½ñ¤¤¤Æ¤âOK¤Ç¤¹¡£
¥×¥í¥°¥é¥à¤ÎÀâÌÀ¤òËä¤á¹þ¤ó¤À¤ê¡¢¥Æ¥¹¥ÈÍѤΥ³¡¼¥É¤òËä¤á¹þ¤à¾ì¹ç¤Ë»ÈÍѤ·¤Þ¤¹¡£
¤³¤³¤Ç¡¢Æó¤Ä¤Î//¤òºï½ü¤·¡¢¼Â¹Ô¤·¤Æ¤ß¤Æ¤¯¤À¤µ¤¤¡£
lastIP ¤È¡¡IP ¤ÎÆó¤Ä¤ÎÊÑ¿ô¤ÎÆâÍƤ¬½ÐÎϤµ¤ì¤Þ¤¹¡£

ftruncate($file,0);

ftruncate´Ø¿ô¡ÊPHP4°Ê¹ß¡Ë¤ò»È¤Ã¤Æ¡¢¥Õ¥¡¥¤¥ë¥µ¥¤¥º¤òÀÚ¤êµÍ¤á¤Æ¤¤¤Þ¤¹¡£
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Á°²ó¤ÎËöÈø¤ÎÉôʬ¤¬»Ä¤Ã¤Æ¤·¤Þ¤¤¤Þ¤¹¡£¤´Ãí°Õ¡ª

fwrite($file, $count);
fwrite($file, "\n");
fwrite($file, $IP);

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