How can PHP developers optimize the performance of PHP scripts that output JavaScript?

PHP developers can optimize the performance of PHP scripts that output JavaScript by minimizing the amount of PHP code executed, reducing database queries, caching results, and using efficient coding practices. One way to improve performance is to separate the PHP logic from the JavaScript code by storing JavaScript in external files and only including dynamic data when necessary. 

<?php
// PHP logic to retrieve data
$data = fetchDataFromDatabase();

// Output JavaScript code
?>
<script>
// JavaScript code
var data = <?php echo json_encode($data); ?>;
// Use the 'data' variable in JavaScript code
</script>

Keywords

PHP performance optimization JavaScript output caching minification

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