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PHP Creating Search Form - Getting htmlspecialchars() error

I am having a problem with the search_term variable showing up in the value of the input field. When I entered the information for the code challenge it passed, but when tested on my live site, I get this error that shows up inside of the text input field:

<br /><b>Warning</b>:  htmlspecialchars() expects parameter 1 to be string, array given in <b>/home/savvychi/public_html/TreeHouse/shirts4mike/search/index.php</b> on line <b>24</b><br />

Has anyone else had this issue?

Here is the code I have for the search page:

<?php require_once("../inc/config.php");

    $search_term = "";
    if (isset($_GET["s"])){
        $search_term[] = trim($_GET["s"]);
        if ($search_term != ""){
            require_once(ROOT_PATH . "inc/products.php");
            $products = get_products_search($search_term);

    $pageTitle = "Search";
    $section = "search";
    include(ROOT_PATH . "inc/header.php");
<div class="section shirts search page">
        <div class="wrapper">
        <form method="get" action="<?php echo BASE_URL; ?>search/">
            <input type="text" name="s" value="<?php if (isset($search_term)) { echo htmlspecialchars($search_term); } ?>">
            <input type="submit" value="Go">


            if ($search_term != ""){
                echo '<ul class="products">';
                foreach ($products as $product) {
                    echo get_list_view_html($product);
                echo '</ul>';



1 Answer

I figured it out, thanks!