How to pass variables and data from PHP to JavaScript?

Question

I have a variable in PHP, and I need its value in my JavaScript code. How can I get my variable from PHP to JavaScript? I have code that looks like this: getValue(); // makes an api and db call ?> I have JavaScript code that needs `val` and looks along the lines of:

Answer 1

Your entire question didn't get posted, but the simple way to pass a variable from PHP to JS is to have PHP echo a JS variable declaration when generating the HTML stream. For example, if I want JS to create a variable called "myJSVar" and assign a value of 3, then the PHP code might be something like:

<?php

echo "<script>\n";

echo " let myJSVar = 3;\n";

echo "</script>\n";

?>

This should produce this HTML:

<script>

let myJSVar = 3;

</script>