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Contents 1 How to Create a PayPal Buttons Extension for Mediawiki 2 Download Extension 3 Code for file IpbWiki_Paypal.php 4 !!WARNING!! 5 Installation 6 Usage 7 Donate

[edit] How to Create a PayPal Buttons Extension for Mediawiki

IpbWiki Paypal is a Mediawiki Extension which adds a new <paypal> tag which allows you to add a paypal button to your wiki pages.

[edit] Download Extension

Download the file IpbWiki_Paypal.php (Click on the download button on the bottom of the next screen)

[edit] Code for file IpbWiki_Paypal.php

If you have problems downloading the above file, then alternatively you can just copy and paste the below code and place it in a file named "IpbWiki_Paypal.php".

<?php
/* IpbWiki Paypal WikiMedia extension 
** IpbWiki (c) 2006
** Installation Instructions: http://www.ipbwiki.com/IpbWiki_Paypal_Extension
*/

$wgExtensionFunctions[] = "wfPayPalExtension";

function wfPayPalExtension() {
    global $wgParser;
    global $ipbwiki_paypal;
    # register the extension with the WikiText parser
    $wgParser->setHook( "paypal", "renderPayPal" );

    $ipbwiki_paypal = array();
    # CHANGE THE LINES BELOW TO REFLECT TO YOUR PAYPAL BUTTONS!!! (there's no limit on the number of buttons you define)
    $ipbwiki_paypal[1] = '<form action="https://www.paypal.com/cgi-bin/webscr" method="post"><input type="hidden" name="cmd" value="_xclick"><input type="hidden" name="business" value="ipbwiki@gmail.com"><input type="hidden" name="item_name" value="IpbWiki PayPal"><input type="hidden" name="no_shipping" value="1"><input type="hidden" name="cn" value="Optional Comments"><input type="hidden" name="currency_code" value="EUR"><input type="hidden" name="tax" value="0"><input type="hidden" name="bn" value="PP-DonationsBF"><input type="image" src="https://www.paypal.com/en_US/i/btn/x-click-but04.gif" border="0" name="submit" alt="Make payments with PayPal - it\'s fast, free and secure!"></form>';
    $ipbwiki_paypal[2] = '<form action="https://... - it\'s fast, free and secure!"></form>'
}

# The callback function for converting the input text to HTML output
function renderPayPal( $input, $argv ) {
    global $ipbwiki_paypal;
    global $wgAuth;
    $pos_space=strpos($input,' ');
    if (!$pos_space) {
        if (is_numeric($input)) {  // format <paypal>number</paypal>
            $part1 = $input;
            $part2 = '';
            if (!$ipbwiki_paypal[$part1]) {
                print_r ('warning, specified paypal button not found, defaulting to button 1');
                $part1 = 1;
                $part2 = $input;
            }
        } else {                   // format <paypal>text</paypal> & format <paypal></paypal>
            $part1 = 1;
            $part2 = $input;
        }
    } else {                       // format <paypal>number text</paypal>
        $part1=substr($input,0,$pos_space);
        $part2=substr($input,$pos_space+1);
        if (is_numeric($part1)) {
            if (!$ipbwiki_paypal[$part1]) {
                print_r ('warning, specified paypal button not found, defaulting to button 1');
                $part1 = 1;
            }
        } else {                 // format <paypal>text</paypal>
            $part1 = 1;
            $part2 = $input;
        }
    }
    $form=$ipbwiki_paypal[$part1];
    // if the ipbwiki interface is available, then use the clean function which is defined there, otherwise just clean the necessities...
    if (class_exists ('ipbwiki')) {
        $input = $wgAuth->ipbwiki->ipbwiki->clean_value ($part2);
    } else { 
        $part2 = str_replace( ">"            , ">"          , $part2 );
        $part2 = str_replace( "<"            , "<"          , $part2 );
        $part2 = str_replace( "\""           , """        , $part2 );
        $part2 = str_replace( "!"            , "!"         , $part2 );
        $part2 = str_replace( "'"            , "'"         , $part2 ); 
        $input = $part2;	
    }
    $output = '<table border=0><tr><td>'.$form.'</td><td valign=center>'.$input.'</td></tr></table>';
    return $output;
}
?>

[edit]  !!WARNING!!

If the text that you place between the single quotes in the $ipbwiki_paypal[1] variable has any single quotes in it then you mist escape them otherwise IT WILL NOT WORK.

Example:

• $ipbwiki_paypal[2] = '<form action="https://... - it\'s fast, free and secure!"></form>'

  • works just fine

• $ipbwiki_paypal[2] = '<form action="https://... - it's fast, free and secure!"></form>'

  • will crash your wiki

[edit] Installation

• create a directory ipbwiki in the extensions directory
• place IpbWiki_PayPal.php in the extensions/ipbwiki directory (see code below)
• open the file LocalSettings.php, search for:

?>

and change this to:

    require_once('extensions/ipbwiki/IpbWiki_PayPal.php');  // IpbWiki PayPal Extension

?>

• in the function wfPayPalExtension, place the code for your paypal-buttons in the variable $ipbwiki_paypal.

[edit] Usage

• the tag <paypal> is translated to the button defined in $ipbwiki_paypal[1].
• the tag <paypal>2</paypal> is translated to the button defined in $ipbwiki_paypal[2].
• the tag <paypal>2 description</paypal> is translated to the button defined in $ipbwiki_paypal[2], additionaly the text 'description' is placed next to the paypal button.
• the tag <paypal>description</paypal> is translated to the button defined in $ipbwiki_paypal[1], additionaly the text 'description' is placed next to the paypal button.

[edit] Donate

If you find this extension usefull, then perhaps you can donate a few bucks? ;)

Donate to the original author here