Php

PHP means „**__P__**HP: **__H__**ypertext **__P__**reprocessor “, originally „**__p__**ersonal **__H__**ome **__P__**age Tools“ and is a popular program language to make dynamic websites. Rasmus Lerdorf was creator of the programming language. Examples of popular server-side PHP applications include phpBB, WordPress and MediaWiki. Nowadays, PHP is installed on the most webhosting servers.

1. Syntax
The most popular beginner Code is:

code format="php" 

code A PHP code begins always with .

You can insert comments in PHP exactly the same as in HTML. There are three possibilities to set comments.

First possibility:

code format="php" code
 * /*** PHP Statement ***/**

With this syntax block comments are commentated

Second possibility: code format="php" //PHP Statement code

This is used for inline comments.

Third possibility:

code format="php" code
 * 1) PHP Statement ###
 * 1) PHP Statement ###

This is used for inline comments, too.

2. A simple Counter-Script
code format="php" <?php

$pfad = "";  /* Path to the file */ $counter = 6; /* Counter Initial value */ $sperrzeit = 3600;    /* IP barrier in seconds */ $max = 999999999; /* File after 1000 visitors clear up (number of visitors*2+1)*/ $grafikcounter = "yes"; /* yes/no (Text- or Grafikcounter) */ $extender = ".gif"; /* Image file format (only with Grafikcounter) */ $width = "57"; /* Width of the Grafik in pixels */ $height = "57";   /* Height of the diagrams in pixels */ $font = "arial";   /* Character type of the Textcounter */ $size = "18pt";   /* Character size of the Textcounter */ $color = "lime";  /* Color of the Textcounter */ $weight = "bold"; /* Writing strengthens of the Textcounter (bold or normal) */

$ip = getenv("REMOTE_ADDR"); //The IP of the visitor

$zeit = time; //current time

$datum = date("Y-F-d-l - H:i:s"); //The Date Output format

$ip_exist = false;

if(!file_exists($pfad."counter.txt")) { $counter++; $daten = array; $daten[0] = $counter; $daten[1] = $ip; $daten[2] = $zeit; $daten[3] = $datum; $teile = implode("|", $daten); $handle = @fopen($pfad."counter.txt", "a"); @fputs($handle, $teile); @fclose($handle); } $read_handle = @fopen($pfad."counter.txt", "r+"); @flock($read_handle,LOCK_SH); $daten = @fgets($read_handle); @flock($read_handle,LOCK_UN); @fclose($read_handle); $teile = explode("|", $daten); $anzahl = count($teile); if($anzahl > $max) { for($n=1; $n<$anzahl; $n++) { unset ($teile[$n]); } $anzahl = 1; } for($n=1; $n<$anzahl; $n++) { if($teile[$n] == $ip) { $ip_exist = true; if($zeit > $teile[$n+1]+$sperrzeit) { $ip_exist = false; unset ($teile[$n]); unset ($teile[$n+1]); break; } } } if($read_handle == true) { if($ip_exist == false) { $teile[0]++; $teile[] = $ip; $teile[] = $zeit; $teile[] = $datum; $daten = implode("|", $teile); $handle = @fopen($pfad."counter.txt", "w"); @flock($handle,LOCK_EX); @fputs($handle,$daten); @flock($handle,LOCK_UN); @fclose($handle); } if($grafikcounter == "no") { echo ""; echo $teile[0]; echo " "; } elseif($grafikcounter == "yes") { $gcount = (string) $teile[0]; for($n=0; $n"; } } } ?>

code

3. Links
http://php.net/ - Official PHP website http://www.php-resource.de/ - Good PHP Scripts, Html & Co Scripts, too.

[|www.cr-home.de] – My Page http://blog.cr-home.de/ - My Blog about all things (German)