PHP Simple Counter Instance Program _php Tutorial

In PHP we sometimes write a simple website page access to the statistics, the following small series to introduce the use of PHP to implement the counter code, I hope this method is helpful to everyone.

Let's add a counter to the home page. Helps demonstrate how to read and write files and create your own functions. Counter.inc contains the following code:

The code is as follows

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< p>!--? /* | | A simple counter */ Function Get_hitcount ($counter _file) { /* Reset counter to zero so if the counter is not yet in use, the initial value will be 1 you can, of course, set the initial value to 20000来. */ $count = 0; //If the store counter file already exists, read the contents of if (file_exists ($counter _file)) { $fp =fopen ($counter _file, "R"); //We only take the top 20, I hope your site is not too popular AH $count =0 fgets ($fp, 20); //Because the function fgets () returns a string, we can automatically convert it to an integer fclose ($fp) by adding a 0 method; //File operation completed } //Add a count of values $count; //write new count value to file $fp =fopen ($counter _file, "w"); Fputs ($fp, $count); Fclose ($FP); # Returns the Count value return ($count); } ? Then we change the Front.php3 file to display this counter: !--? include ("Include/counter.inc"); I put the value in the file Counter.txt, read out and output printf (" D N", Get_hitcount ("Counter.txt") ); include ("Include/footer.inc"); ?

Example 2

The code is as follows

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1) Text counter $countfile = "/count.txt"; Set up files to save data if (!file_exists ($countfile)) {//Determine if the file exists EXEC ("Echo 0 > $countfile"); } $fp = fopen ($countfile, "RW"); $length =filesize ($countfile); $num = Fgets ($fp, $length); $num + = 1; EXEC ("Rm-rf $countfile"); EXEC ("echo $num > $countfile"); PRint "Traffic Totals:". " $num "." "; Show access times ?> 2) Graphics counter $countfile = "/count-num.txt"; Set up files to save data if (!file_exists ($countfile))//Determine if the file exists {EXEC ("echo 0 > $countfile");} $fp = fopen ($countfile, "RW"); $length =filesize ($countfile); $num = Fgets ($fp, $length); $num + = 1; EXEC ("Rm-rf $countfile"); EXEC ("echo $num > $countfile"); $len _str = strlen ($num); for ($i =0; $i < $len _str; $i + +) { $each _num = substr ($num, $i, 1); $out _str = $out _str. ""; } Print "Traffic totals:". " $out _str "." "; Show access times

http://www.bkjia.com/PHPjc/632702.html www.bkjia.com true http://www.bkjia.com/PHPjc/632702.html techarticle in PHP We sometimes write a simple website page access to the statistics, the following small series to introduce the use of PHP to implement the counter code, I hope this method is helpful to everyone. Let's ...

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