Are there specific PHP functions or techniques to ensure JavaScript compatibility with PHP output?

When outputting data from PHP that will be used in JavaScript, it's important to ensure that the data is properly escaped to prevent syntax errors or security vulnerabilities. One common technique is to use the `json_encode` function in PHP to convert PHP arrays or objects into a JSON string, which can safely be used in JavaScript. 

<?php
$data = array(
    'name' => 'John Doe',
    'age' => 30,
    'email' => 'johndoe@example.com'
);

$json_data = json_encode($data);
?>

<script>
var jsonData = <?php echo $json_data; ?>;
console.log(jsonData);
</script>

Keywords

JavaScript compatibility PHP output JSON encoding AJAX requests cross-origin requests

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