Automatically replace words by affiliate links

To replace words by affiliate links automatically, simply paste the code below into your functions.php file. Remember to enter your words/links as shown in the example code below.

function replace_text_wps($text){
    $replace = array(
    // 'WORD TO REPLACE' => 'REPLACE WORD WITH THIS'
    'thesis' => '<a href="http://mysite.com/myafflink">thesis</a>',
    'studiopress' => '<a href="http://mysite.com/myafflink">studiopress</a>'
    );
    $text = str_replace(array_keys($replace), $replace, $text);
    return $text;
}

add_filter('the_content', 'replace_text_wps');
add_filter('the_excerpt', 'replace_text_wps');