如何在php脚本中添加计数？ [关闭]

I want to have a way where I can view the amount of times a script of PHP has been used? I want to have a file, that just has a number in it, then I want to be able to view this. So if 6 people send an email through my php script, then each time it is used it will add 1 to a number then save it to a file?

How could I do this?? Thanks.

You could use php's file_get_contents(); and file_put_contents(); functions:

$file = 'count.txt';

if(file_exists($file)){
    $current = file_get_contents($file);
    file_put_contents($file, ($current + 1));
}else
    file_put_contents($file, 1);

//Define the name of the file
define('FILE_NAME', 'counter.txt');

//Check is there this file
if (file_exists(FILE_NAME)) {
    //If yes, read out the content of it
    $content = file(FILE_NAME);
    //Put the incrased value
    file_put_contents(FILE_NAME, $content[0] + 1);
} else {
    //Create the file with 1 visitor
    file_put_contents(FILE_NAME, 1);
}