function takimismi($isim,$kisaltma){ 
    $uzun = array($isim); 
    $kisa = array($kisaltma); 
    $s = str_replace($uzun,$kisa,$isim); 
    return $s; 
}

// Kullanımı
echo takimismi('Beşiktaş','BJK');

function get($first, $last, $text)
{
    @preg_match_all('/' . preg_quote($first, '/') .
        '(.*?)'. preg_quote($last, '/').'/i', $text, $m);
    return @$m[1];
}
    // Get Content
    $url                = "http://spor.haberturk.com/iddaa/puandurumu/1/turkiye-spor-toto-super-lig";
    $content            = file_get_contents($url);
    $get_s                   = get('class="col1">', '</td>', $content);
    $get_t                   = get('class="col2">', '</td>', $content);
    $get_o                   = get('class="col3">', '</td>', $content);
    $get_g                   = get('class="col4">', '</td>', $content);
    $get_b                   = get('class="col5">', '</td>', $content);
    $get_m                   = get('class="col6">', '</td>', $content);
    $get_a                   = get('class="col7">', '</td>', $content);
    $get_y                   = get('class="col8">', '</td>', $content);
    $get_p                   = get('class="col9">', '</td>', $content);
    $get_av                   = get('class="col10">', '</td>', $content);
    $get_c              = (count($get_s) - 1)/3;