<img src="image1.png" alt="Book" id="img_all">
<img src="image2.png" alt="Book" id="img_all">
<img src="image3.png" alt="Book" id="img_all">
<script>
$("img[src='image1.png']").one("load", function() {
}).each(function() {
$('[id="img_all"]').attr("src","no_image.png");
});
</script>
$time = time();
$s = $mysqli->query("SELECT `id`, `date` FROM `tb_visitors` WHERE `status` = '1' ");
while($r = $s->fetch_assoc()){
if($r['date'] < $time){
$mysqli->query("DELETE FROM `tb_visitors` WHERE `id` = '".$r['id']."' LIMIT 1 ");
}
}