Detailed example of how PHP uses text to count visits

This article mainly introduces the method of using text to count visits in PHP, involving skills related to reading and writing PHP text files and numerical calculations. Friends in need can refer to it

The example of this article describes the use of text in PHP Method of counting visits. Share it with everyone for your reference, the details are as follows:

Method 1:

$fp = fopen("counter.txt", "r+");
while(!flock($fp, LOCK_EX)) { // acquire an exclusive lock
  // waiting to lock the file
}
$counter = intval(fread($fp, filesize("counter.txt")));
$counter++;
ftruncate($fp, 0);   // truncate file
fwrite($fp, $counter); // set your data
fflush($fp);      // flush output before releasing the lock
flock($fp, LOCK_UN);  // release the lock
fclose($fp);

Method 2:

counter.php File:

<?php
/* counter */
//opens countlog.txt to read the number of hits
$datei = fopen("countlog.txt","r");
$count = fgets($datei,1000);
fclose($datei);
$count=$count + 1 ;
echo "$count" ;
echo " hits" ;
echo "\n" ;
// opens countlog.txt to change new hit number
$datei = fopen("countlog.txt","w");
fwrite($datei, $count);
fclose($datei);
?>

Usage:

<?php
include("counter.php");
?>

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