访问日志统计_PHP

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Release: 2016-06-01 12:30:23
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/*
程序:访问日志统计
作者:放弃思考 (QQ:376123224)
日期:2005-7-22
*/

##################################
###############函数部分###########

function Format2UnixTime ($str)
{
/*
该函数为格式转换函数,将类似的:$str = "03/Mar/2005:16:53:32"转化为相应的UNIX时间戳。
*/
$time = $str;
$time = str_replace("/"," ",$time);
$time_array = explode( ":",$time,2);
$time = $time_array[0]." ".$time_array[1];
return strtotime($time);
}

function CompareByTimes ($x,$y)
{
if ( $x[0] == $y[0] )
return 0;
else if ($x[0] > $y[0])
return -1;
else
return 1;
}

function CompareByAccessTime ($x,$y)
{
$x[1] = Format2UnixTime($x[1]); //先格式化为UNIX时间戳
$y[1] = Format2UnixTime($y[1]); //先格式化为UNIX时间戳

if ( $x[1] == $y[1] )
return 0;
else if ($x[1] > $y[1])
return -1;
else
return 1;
}

/*主函数GetAccessByLog
$filename为文件路径,
$order为排序方式:
0:按访问次数排序(缺省值)
1:按最近一次访问的时间排序。
*/
function GetAccessByLog ($filename,$order=0)
{
if ( file_exists($filename) )
{
$handle = fopen ($filename, "r");
$ip_times = array();
while (!feof ($handle)) {
$buffer = fgets($handle, 999);
if ((preg_match("#\d{1,2}\/\w{1,3}\/\d{1,4}\:\d{1,2}\:\d{1,2}\:\d{1,2}#",$buffer,$access_time)) && (preg_match("#\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}#",$buffer,$ip)))
{
$ip = $ip[0];
$access_time = $access_time[0];
if ( in_array($ip,array_keys($ip_times)))
{
$ip_times[$ip][0]++; // $ip_times[$ip][0]为访问次数times
$ip_times[$ip][1]=$access_time; //$ip_times[$ip][1]为访问时间access_time
}else
{
$ip_times[$ip][0] = 1;
$ip_times[$ip][1]=$access_time;
}
}
}
fclose ($handle);
}else
{
echo "The log file does not exist.";
exit;
}

if ( $order==1 )
{
$compare = "CompareByAccessTime"; //按最近一次访问时间排序
$title = "按最近一次访问时间排序";
}else{
$compare = "CompareByTimes"; //按访问次数排序
$title = "按访问次数排序";
}
uasort( $ip_times, $compare );

echo "

".$title."
";
foreach ( $ip_times as $ip=>$value )
{
echo "IP:".$ip."
访问次数:".$value[0].",最近一次访问时间是: ".$value[1]."

";
}

}

###################################
###################################

########### Example ################

$filename = "C:/Apache2/logs/access.log";
GetAccessByLog($filename,0);
// 参数二意义 0:按访问次数排序(缺省值);1:按最近一次访问的时间排序。

?>

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