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yourls_ynh/sources/user/plugins/sample-plugin/plugin.php
2014-06-13 07:30:00 +02:00

61 lines
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PHP

<?php
/*
Plugin Name: Sample Plugin
Plugin URI: http://yourls.org/
Description: Sample plugin to illustrate how actions and filters work. Read its source. Refer to the <a href="http://yourls.org/pluginapi">Plugin API documentation</a> for more details.
Version: 0.1
Author: Ozh
Author URI: http://ozh.org/
*/
// No direct call
if( !defined( 'YOURLS_ABSPATH' ) ) die();
/* Example of an action
*
* We're going to add an entry to the menu.
*
* The menu is drawn by function yourls_html_menu() in file includes/functions-html.php.
* Right before the function outputs the closing </ul>, notice the following function call:
* yourls_do_action( 'admin_menu' );
* This function says: "hey, for your information, I've just done something called 'admin menu', thought I'd let you know..."
*
* We're going to hook into this action and add our menu entry
*/
yourls_add_action( 'admin_menu', 'ozh_sample_add_menu' );
/* This says: when YOURLS does action 'admin_menu', call function 'ozh_sample_add_menu'
*/
function ozh_sample_add_menu() {
echo '<li><a href="http://ozh.org/">Ozh</a></li>';
}
/* And that's it. Activate the plugin and notice the new menu entry.
*/
/* Example of a filter
*
* We're going to modify the <title> of pages in the admin area
*
* The <title> tag is generated by function yourls_html_head() in includes/functions-html.php
* Notice the following function call:
* $title = yourls_apply_filter( 'html_title', 'YOURLS: Your Own URL Shortener' );
* This function means: give $title the value "YOURLS: Your Own URL Shortener", unless a
* filter modifies this value.
*
* We're going to hook into this filter and modify this value.
*/
yourls_add_filter( 'html_title', 'ozh_sample_change_title' );
/* This says: when filter 'html_title' is triggered, send its value to function 'ozh_sample_change_title'
* and use what this function will return.
*/
function ozh_sample_change_title( $value ) {
$value = $value . ' (we have hacked this title)';
return $value; // a filter *always* has to return a value
}
/* And that's it. Activate the plugin and notice how the page title changes */