JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" class="likepic"></a>
<div class="blackk" style="display:none;">
    <div id="likepic_lightbox">test</div>
</div>

JavaScript

// Make sure this block is defined first
$(document).ready(function() {
    $(".likepic").click(function(){
        $(".blackk").show();
        $(".likepic").colorbox({width:"620px", height:"570px", inline:true, href:"#likepic_lightbox"});
    });
});

// Add PHP logic back in here
<?php $_POST["action"] = 1 ; if ($_POST["action"] == "1") { ?>
    $(document).ready(function() {
        $(".likepic").click();
    });
// Close PHP logic
 <?php } ?>