What are the potential issues when trying to pass database query results as a parameter to a JavaScript function in PHP?

When passing database query results as a parameter to a JavaScript function in PHP, the potential issue is that the query results may contain special characters or HTML tags that can break the JavaScript code or introduce security vulnerabilities. To solve this issue, you can use the json_encode function in PHP to safely encode the query results into a JSON format that can be safely passed to the JavaScript function. 

<?php
// Assume $queryResults contains the database query results

// Encode the query results into a JSON format
$jsonData = json_encode($queryResults);

// Pass the encoded data to the JavaScript function
echo "<script>myJavaScriptFunction($jsonData);</script>";
?>

Keywords

PHP JavaScript database query parameter data type conversion

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