_site/includes/modules/search.php


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<nav class="navbar navbar-expand-sm bg-dark navbar-dark" id="navbar-search">
    <div class="container">
        <a class="navbar-brand" href="/"><img src="/logo.svg" width="36px" style="vertical-align: middle;">&nbsp; <span style="vertical-align: middle;">UnchainedTech</span></a>

        <form class="form-inline" action="/search" id="search-form">
            <input class="form-control mr-sm-2" type="text" name="q" value="<?php

            if (isset($_GET['q']) && strpos($_GET['q'], "/") === false && strpos($_GET['q'], "&") === false && strpos($_GET['q'], ">") === false && strpos($_GET['q'], ">") === false) {
                echo($_GET['q']);
            }

            ?>" placeholder="Search articles">
            <button class="btn btn-success" type="submit" id="search-submit">Search</button>
        </form>
    </div>
</nav>