What is the potential issue with using JavaScript code within PHP code?

Mixing JavaScript code within PHP code can lead to readability issues and make the code harder to maintain. It can also create potential security vulnerabilities if not handled properly. To solve this issue, it's recommended to separate the JavaScript code from the PHP code by using external JavaScript files or embedding JavaScript within HTML elements. 

<?php
// PHP code
?>

<script>
// JavaScript code
</script>

<?php
// More PHP code
?>

Keywords

JavaScript PHP cross-origin security execution order

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