读取文本文件并显示部分行

Question

I'm creating a hit counter. The script that registers that the visitor was there creates a .txt file like this

 IP Adress:127.0.0.1

 Timestamp:1400602795

 User Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.137 Safari/537.36

 Times visited:1

I want to be able to got information like timestamp and times visited. One way i'd like to do this is to create an array seperated by ":".

I tried to create the array, But for some reason "Times Visited" does not get included in the array. Here is the code from that attempt:

$fileResource = @fopen("hits/".$_SERVER["REMOTE_ADDR"].".txt","r");
$fileContent = @fread($fileResource,100000);

$array = preg_match_all("/(.*):(.*)\
/i",$fileContent,$fileMatches);
//0 = IP
//1 = Timestamp
//2 = User Agent
//3 = Times Visited
echo $fileMatches[0][3];

this is the output when i try print_r($fileMatches)

Array

( [0] => Array ( [0] => IP Adress:127.0.0.1

        [1] => Timestamp:1400604101

        [2] => User Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.137 Safari/537.36

    )

[1] => Array
    (
        [0] => IP Adress
        [1] => Timestamp
        [2] => User Agent
    )

[2] => Array
    (
        [0] => 127.0.0.1
        [1] => 1400604101
        [2] => Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.137 Safari/537.36
    )

)

Answer 1

If you have already read the entire contents of the file into a string, you could use explode twice like this:

$s = <<<EOT
IP Address:127.0.0.1

Timestamp:1400602795

User Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.137 Safari/537.36

Times visited:1
EOT;

$arr = array();
foreach (explode("
", $s) as $line) {    
    if (trim($line) !== '') { // check for empty line
        list($key, $value) = explode(':', $line);   
        $arr[$key] = trim($value);
    }
}
print_r($arr);

Which creates an array like this:

Array ( 
    [IP Address] => 127.0.0.1 
    [Timestamp] => 1400602795 
    [User Agent] => Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.137 Safari/537.36 
    [Times visited] => 1 
) 

Alternatively, instead of using fread you could use fgets to read each line one by one, and replace the foreach loop with something like while (fgets($fileResource))