php mysql search query limit results

Salve a tutti, ho un problema con il seguente file php
quando digito sulla ricerca una lettera, vorrei che escono soltanto fuori i 5 risultati e non 7, come posso fare?

<?php
/************************************************
    The Search PHP File
************************************************/


/************************************************
    MySQL Connect
************************************************/

// Credentials
$dbhost = "localhost";
$dbname = "";
$dbuser = "";
$dbpass = "";

//    Connection
global $tutorial_db;

$tutorial_db = new mysqli();
$tutorial_db->connect($dbhost, $dbuser, $dbpass, $dbname);
$tutorial_db->set_charset("utf8");

//    Check Connection
if ($tutorial_db->connect_errno) {
    printf("Connect failed: %s\n", $tutorial_db->connect_error);
    exit();
}

/************************************************
    Search Functionality
************************************************/

// Define Output HTML Formating
$html = '';
$html .= '<li class="result">';
$html .= '<a target="_blank" href="urlString">';
$html .= '<div class="show" align="left"> 
<img src="author.PNG" style="width:50px; height:50px; float:left; margin-right:6px;" />nameString <br/><span>functionString</span></div> ';
$html .= '';
$html .= '</a>';
$html .= '</li>';

// Get Search
$search_string = preg_replace("/[^A-Za-z0-9]/", " ", $_POST['query']);
$search_string = $tutorial_db->real_escape_string($search_string);

// Check Length More Than One Character
if (strlen($search_string) >= 1 && $search_string !== ' ') {
    // Build Query
    $query = 'SELECT * FROM search WHERE function LIKE "%'.$search_string.'%" OR name LIKE "%'.$search_string.'%"';

    // Do Search
    $result = $tutorial_db->query($query);
    while($results = $result->fetch_array()) {
        $result_array[] = $results;
    }

    // Check If We Have Results
    if (isset($result_array)) {
        foreach ($result_array as $result) {

            // Format Output Strings And Hightlight Matches
            $display_function = preg_replace("/".$search_string."/i", "<b class='highlight'>".$search_string."</b>", $result['function']);
            $display_name = preg_replace("/".$search_string."/i", "<b class='highlight'>".$search_string."</b>", $result['name']);
            $display_url = 'http://www.itworldlive.it/'.urlencode($result['function']).'';

            // Insert Name
            $output = str_replace('nameString', $display_name, $html);

            // Insert Function
            $output = str_replace('functionString', $display_function, $output);

            // Insert URL
            $output = str_replace('urlString', $display_url, $output);

            // Output
            echo($output);
        }
    }else{

        // Format No Results Output
        $output = str_replace('urlString', 'javascript:void(0);', $html);
        $output = str_replace('nameString', '<b>No Results Found.</b>', $output);
        $output = str_replace('functionString', 'Sorry :(', $output);

        // Output
        echo($output);
    }
}


/*
// Build Function List (Insert All Functions Into DB - From PHP)

// Compile Functions Array
$functions = get_defined_functions();
$functions = $functions['internal'];

 
foreach ($functions as $function) {
    $function_name = str_replace("_", " ", $function);
    $function_name = ucwords($function_name);

    $query = '';
    $query = 'INSERT INTO search SET id = "", function = "'.$function.'", name = "'.$function_name.'"';

    $tutorial_db->query($query);
}
*/
?>

Non ho testato la soluzione ma dovrebbe essere alla linea 51 quando fai la query, imposti un limite a 5.

quindi da

$query = 'SELECT * FROM search WHERE function LIKE "%'.$search_string.'%" OR name LIKE "%'.$search_string.'%"'; 

a

$query = 'SELECT * FROM search WHERE function LIKE "%'.$search_string.'%" OR name LIKE "%'.$search_string.'%" LIMIT 0, 5'; 

Fammi sapere se funge, bye!

No, non funziona ancora :(