how to pass a variable from js to php code example

Example 1: js var to php

<script>
   var res = "success";
</script>
<?php
   echo "<script>document.writeln(res);</script>";
?>

Example 2: javascript access php variable

//passing PHP variable to JavaScript
var myJSVar = <?php echo json_encode($myPHPVar); ?>;

Example 3: php pass a variabele to js

<script>
'var name = <?php echo json_encode($name); ?>;
</script>'

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Php Example

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