How can include() and require() functions be used in PHP to insert content into a webpage?

To insert content into a webpage using PHP, you can use the include() and require() functions. These functions allow you to include external PHP files within your current script, enabling you to reuse code and modularize your application. The include() function will only produce a warning if the file is not found, while the require() function will produce a fatal error. 

<?php
// Using include() function to insert content
include('header.php');
echo "<p>This is the main content of the webpage.</p>";
include('footer.php');
?>

Keywords

include require PHP functions content insertion webpage

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