求一个简单的php

Question

程序 文件log.txt:
220.172.12.141  [17/Feb/2011:06:05:52 +0800] "GET /lift.sohu.com.cn/tuan.html"
220.172.12.142  [17/Feb/2011:06:05:54 +0800] "GET /lift.sohu.com.cn/ent.html"
220.172.12.143  [17/Feb/2011:06:05:55 +0800] "GET /lift.souhu'.com.cn/tuan.html"
220.172.12.144  [17/Feb/2011:08:05:56 +0800] "GET lift.sohu.com.cn/sports.html"
220.172.12.145  [17/Feb/2011:10:05:56 +0800] "GET lift.sohu.com.cn/news.html"
220.172.12.145  [17/Feb/2011:11:05:57 +0800] "GET lift.sohu.com.cn/tuan.html".
统计出各小时/lift.sohu.com.cn/tuan.html 的页面访问次数

Answer 1

$text = '220.172.12.141  [17/Feb/2011:06:05:52 +0800] "GET /lift.sohu.com.cn/tuan.html"
220.172.12.142  [17/Feb/2011:06:05:54 +0800] "GET /lift.sohu.com.cn/tuan.html"
220.172.12.144  [17/Feb/2011:08:05:56 +0800] "GET lift.sohu.com.cn/sports.html"
220.172.12.145  [17/Feb/2011:10:05:56 +0800] "GET lift.sohu.com.cn/news.html"
220.172.12.145  [17/Feb/2011:11:05:57 +0800] "GET lift.sohu.com.cn/tuan.html"';
$text改成 file_get_contents("log.txt");
preg_match_all("/lift.sohu.com.cn\/tuan.html/",$text,$out);
echo count($out[0]);

Answer 2

$data = <<<EOF
220.172.12.141  [17/Feb/2011:06:05:52 +0800] "GET /lift.sohu.com.cn/tuan.html"
220.172.12.142  [17/Feb/2011:06:05:54 +0800] "GET /lift.sohu.com.cn/ent.html"
220.172.12.143  [17/Feb/2011:06:05:55 +0800] "GET /lift.souhu'.com.cn/tuan.html"
220.172.12.144  [17/Feb/2011:08:05:56 +0800] "GET lift.sohu.com.cn/sports.html"
220.172.12.145  [17/Feb/2011:10:05:56 +0800] "GET lift.sohu.com.cn/news.html"
220.172.12.145  [17/Feb/2011:11:06:57 +0800] "GET lift.sohu.com.cn/tuan.html"
220.172.12.145  [17/Feb/2011:11:07:57 +0800] "GET lift.sohu.com.cn/tuan.html"
220.172.12.145  [17/Feb/2011:11:08:57 +0800] "GET lift.sohu.com.cn/tuan.html"
220.172.12.145  [17/Feb/2011:11:09:57 +0800] "GET lift.sohu.com.cn/tuan.html"
220.172.12.145  [17/Feb/2011:11:10:57 +0800] "GET lift.sohu.com.cn/tuan.html"
220.172.12.145  [17/Feb/2011:11:11:57 +0800] "GET lift.sohu.com.cn/tuan.html"
220.172.12.145  [17/Feb/2011:11:05:57 +0800] "GET lift.sohu.com.cn/tuan.html"
220.172.12.145  [17/Feb/2011:11:05:57 +0800] "GET lift.sohu.com.cn/tuan.html"
EOF;
$temp = array ();
preg_match_all ( '/\[([^\]]*)\] "GET lift.sohu.com.cn\/tuan.html"/', $data, $temp );
$result = array ();
foreach ( $temp [1] as $val ) {
$hour = date ( 'G', strtotime ( $val ) );
if (isset ( $result [$hour] )) {
$result [$hour] += 1;
} else {
$result [$hour] = 1;
}
}
var_dump($result);

Answer 3

这一句只取出小时么，对php刚接触