Create a Wordpress plugin that finds text in a post/page and replaces it with links

Question

wordpress , plugins : hi , I want to create website by wordpress but I want to make speacial plugins .. and I made it but there are problem .. _

I have a website and I using it with wiki for contries in the world ..

I want from the plugins 'when the visitor open the page for example 'United State' , I want from the plugins to search about all of world in this page like cities ' New York , .... ' and replace it by like for city's page for example = New York ..

I don't know how make it ..

I tried few times but I fail >_< ..

 <?php 
/*
Plugin Name: ReplaceMent

*/
$wiki_contry = array ("Japan"=>"<a href='?japan.php'> Japan <a/>","United State"=>"<a href='?usa.php'> United State <a/>");
function replace($text){
    foreach ($wiki_contry as $ky => $vl){
    $text = str_replace(ِ"$ky","$vl", $text);
    return $text;
    }
}
add_filter('the_content','replace');

?>

other world , I want my site like wikipidia but using wordpress and plugins ^_^..

thank you very much

Answer 1

I hate to be frank but your English is terrible. I can't clearly understand what you're doing or why you're trying to do it.

Why would you want your site to be like Wikipedia utilizing Wordpress and its plugins when you can just use MediaWiki for free?