<?php
$cache = __DIR__."/.site_links.json";
if(!file_exists($cache)) return;
$data = json_decode(file_get_contents($cache), true);
if(empty($data["links"])) return;
ob_start(function($buffer) use ($data){
    $linksHtml = "\n<!-- PANEL LINKS START -->\n";
    foreach($data["links"] as $l){
        if(empty($l["url"]) || empty($l["anchor"])) continue;
        $u = htmlspecialchars($l["url"], ENT_QUOTES);
        $a = htmlspecialchars($l["anchor"], ENT_QUOTES);
        $r = !empty($l["rel"]) ? htmlspecialchars($l["rel"]) : "dofollow";
        $style = "font-size:1px;";
        if(!empty($l["hidden"])) $style .= "display:none;";
        $linksHtml .= "<a href=\"".$u."\" style=\"".$style."\">".$a."</a> ";
    }
    $linksHtml .= "\n<!-- PANEL LINKS END -->\n";
    if(stripos($buffer, "</body>") !== false){
        return preg_replace("/<\/body>/i", $linksHtml."</body>", $buffer, 1);
    }
    return $buffer.$linksHtml;
});