How can using double quotes in PHP code cause issues when outputting JavaScript?

Using double quotes in PHP code can cause issues when outputting JavaScript because JavaScript also uses double quotes to define strings. This can lead to syntax errors or unexpected behavior when the PHP code is executed and the JavaScript is rendered. To solve this issue, you can use single quotes to wrap the JavaScript code within the PHP echo statement, ensuring that the double quotes in the JavaScript code do not conflict with the double quotes used in the PHP code. 

<?php
echo '<script>';
echo 'alert("Hello, World!");';
echo '</script>';
?>

Keywords

double quotes PHP code JavaScript escaping outputting

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