Are there any server-side configurations or headers that need to be set to ensure JSON data is parsed correctly in JavaScript when returned from PHP?

To ensure JSON data is parsed correctly in JavaScript when returned from PHP, you need to set the "Content-Type" header to "application/json" in the PHP script that is returning the JSON data. This header tells the browser that the response is in JSON format, allowing JavaScript to parse it correctly. 

<?php
header('Content-Type: application/json');
$data = array('key1' => 'value1', 'key2' => 'value2');
echo json_encode($data);
?>

Keywords

PHP JSON server-side configurations headers JavaScript

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