What is the purpose of output_add_rewrite_var in PHP and how is it used in the provided code snippet?

The purpose of output_add_rewrite_var in PHP is to add a URL variable to the output buffer. This function is useful when you want to add or modify URL parameters before the page content is sent to the browser. In the provided code snippet, output_add_rewrite_var is used to add a URL parameter 'page' with the value '1' to the output buffer. 

<?php
// Start output buffering
ob_start();

// Add a URL variable 'page' with value '1' to the output buffer
output_add_rewrite_var('page', '1');

// Get the content of the output buffer and display it
echo ob_get_clean();
?>

Keywords

output_add_rewrite_var PHP code snippet purpose usage

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