I need to refactor this php function - php

Question

I need to refactor this code, Im not a php developer so i dont understand the syntax thats apparent here, what i want is this button to activate the moment the page is loaded.
<?php
$h = '';
if ($newsermonstomove) {
foreach ($newsermonstomove as $vettel) {
$h .= "<div style=\"padding: 5px;\">";
$h .= "<button id=\"btn_" . $vettel->ID . "\" class=\"btn btn-primary btn-xs\" onclick=\"doMe(" . $vettel->ID . ");\" >s3</button><span style=\"padding-left:5px;\">Channel: " . $vettel->ChannelID . ", Sermon: " . $vettel->ID . " " . $vettel->SermonTitle . "</span> <div style=\"display:none;color:blue;\" id=\"msg_" . $vettel->ID . "\"></div><br/>";
$h .= "</div>";
}
} else {
$h = "<h3>No new sermons.</h3>";
}
echo $h;
?>
From what i understand, the onclick has an escape in it onclick=\"doMe(" . $vettel->ID . ");\" In HTML i know that with a button if you do onclick=doMe its a reference to a function, which i feel like is the same thing thats happening here with the escape keys in it. its making a reference to the function doMe, but i want the function to fire automatically when the page loads.

Answer 1

Ok, i was able to figure out the answer I needed using JQuery.
$("document").ready(function() {
setTimeout(function() {
$(".btn").trigger('click');
},10);
});
essentially what this function does is wait for the page to load then after 10 milliseconds it targets all buttons on the screen with the class name btn and triggers the click functionality of the button, thus firing off the button on the page load.

Answer 2

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<?php
if (!empty($newsermonstomove)) {
$h = '';
foreach ($newsermonstomove as $vettel) {
$h .= '<div style="padding: 5px;">';
$h .= '<button data-id="' . $vettel->ID . '" class="btn-vettel btn btn-primary btn-xs">s3</button><span style="padding-left:5px;">Channel: ' . $vettel->ChannelID . ', Sermon: ' . $vettel->ID . ' ' . $vettel->SermonTitle . '</span> <div style="display:none;color:blue;" id="msg_'.$vettel->ID.'"></div><br/>';
$h .= '</div>';
}
} else {
$h = '<h3>No new sermons.</h3>';
}
echo $h;
?>
<script>
$(function() {
$('.bt-vettel').on('click', function(e) {
var id = $(this).data('id');
doMe(id);
});
});
<script>