How to pass PHP variable to Javascript and vice versa?

Answer 1

Here are some example with Php, Js and Css
https://code.sololearn.com/wC00Yikflt68/?ref=app

Answer 2

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Mel For passing PHP variable to JS:
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The technique is to use PHP to dynamically write the JS values you want initialized within <script> tags.

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For vice versa:
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You post the JS values back to the PHP page to be evaluated.

Answer 3

In your PHP.

<?php
echo "<script>window.MY_VAR = ${my_var}; </script>";

To pass a JavaScript variable to PHP. Use ajax. With axios it will be like this

await axios.post('script.php', {my_var});

then in script.php,

$my_var = filter_input('POST', 'my_var', FILTER_SANITIZE_STRING);

EDIT
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I just noticed that you tagged jquery. In jquery, to send a post request is like this.

$.post('script.php', {my_var})

Answer 4

I have long wondered whether it was possible, but so far I don't see it that way. Maybe through your post I find something new.