php - Limiting Maximum Number of Search Results

Solution:

My understanding of the issue is that you want to limit the amount ofhints returned from the search. You aren't attempting to stop the search but rather to just restrict the output?

The changes which I've made is to turn$hint into an array, then at the bottom of the code it will usearray_slice to start at the first position and return$amountToShow. Adding the element to$hint is done withsprintf that's purely for readability sake.

<?php

$xmlDoc = new DOMDocument();
$xmlDoc->load("links.xml");

$x = $xmlDoc->getElementsByTagName('link');

//get the q parameter from URL
$q = $_GET["q"];
$hint = [];

//lookup all links from the xml file if length of q>0
if (strlen($q) > 0) {
    for ($i = 0; $i < ($x->length); $i++) {
        $y = $x->item($i)->getElementsByTagName('title');
        $z = $x->item($i)->getElementsByTagName('url');
        if ($y->item(0)->nodeType == 1) {
            //find a link matching the search text
            if (stristr($y->item(0)->childNodes->item(0)->nodeValue, $q)) {
                $hint[] = sprintf(
                    "<a href='%s' target='_blank'>%s</a>",
                    $z->item(0)->childNodes->item(0)->nodeValue,
                    $y->item(0)->childNodes->item(0)->nodeValue
                );
            }
        }
    }
}

// Set output to "no suggestion" if no hint was found
// or to the correct values
$amountToShow = 10;
if (count($hint) == 0) {
    echo "no suggestion";
} else {
    echo implode("", array_slice($hint, 0, $amountToShow));
}
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