PHP Classes

Search Keywords: Get the search words that lead an user to a page

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Version License PHP version Categories
searchkeys 3.0.0GNU General Publi...8.0.0HTTP, Searching
Description 

Author

Eric Sizemore

This class can be used to retrieve the search words entered by an user in a search engine site that lead the user to the current page.

The class can parse the HTTP_REFERER CGI variable if present. Then it can detect which search engine site lead the user to the current page, and extract the search words.

Currently the following engines are supported:

- Google
- Yahoo/AllTheWeb
- Bing
- Ask/AskJeeves
- Baidu

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Example

<?php

/**
 * @author Eric Sizemore <[email protected]>
 * @package Search Keywords
 * @version 3.0.0
 * @copyright 2006 - 2024 Eric Sizemore
 * @license GNU GPL v3
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

/*
 * Honestly, there is not much to using this class. It is very simple and does
 * not take much to get going. You really only need to do the following:
 */

// First include the class file.
require_once('./Keywords.php');

// Next, instantiate the object using it's "getInstance()" function
$keys = \Esi\Search\Keywords::getInstance();

// Everything else is pretty much handled for you automatically.
// Calling 'getKeys()' will automatically parse the referrer for you.
$keys = $keys->getKeys();

/*
 * The 'getKeys()' call will return an array with the following structure:
 *
 * array(3) {
 * ['referer'] => 'referrer url',
 * ['keywords'] => 'keyword',
 * ['engine'] => 'search engine'
 * }
 *
 * For example:
 *
 * array(3) {
 * ['referer']=> string(160) "https://search.yahoo.com/search;_ylc=X3oDMTFiN25laTRvBF9TAzIwMjM1MzgwNzUEaXRjAzEEc2VjA3NyY2hfcWEEc2xrA3NyY2h3ZWI-?p=test&fr=yfp-t&fp=1&toggle=1&cop=mss&ei=UTF-8"
 * ['keywords']=> string(4) "test"
 * ['engine']=> string(5) "yahoo"
 * }
 */
if (count($keys)) {
    echo "Referring URL: $keys[referer]<br />Keywords: $keys[keywords]<br />Search Engine: $keys[engine]";
}

/*
 * The above will output something similar to:
 *
 * Referring URL: https://search.yahoo.com/search;_ylc=X3oDMTFiN25laTRvBF9TAzIwMjM1MzgwNzUEaXRjAzEEc2VjA3NyY2hfcWEEc2xrA3NyY2h3ZWI-?p=test&fr=yfp-t&fp=1&toggle=1&cop=mss&ei=UTF-8
 * Keywords: test
 * Search Engine: Yahoo
 */

// And honestly, that's really all there is to it.

Screenshots (1)  
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  Files folder image Files (4)  
File Role Description
Plain text file Keywords.php Class The main class file
Accessible without login Plain text file example.php Example Example usage
Accessible without login Plain text file LICENSE.md Lic. License

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