In this article, you will learn how to add a variable to URLs in HTML tags and hidden inputs to forms in PHP. The output_add_rewrite_var() function in PHP adds a variable to URLs in HTML tags and hidden inputs to forms. The tags which are affected depend on the configuration of the url_rewriter.tags setting in php.ini.
what is the syntax of the OUTPUT_ADD_REWRITE_VAR function in php?
output_add_rewrite_var(name, value);| Parameter | Description |
|---|---|
| name | The name of the variable to be added to URLs and the content of the name attribute of hidden inputs in forms. |
| value | The value of the variable to be added to URLs and the content of the value attribute of hidden inputs in forms. |
examples of the OUTPUT_ADD_REWRITE_VAR function
Example 1. In this example, we add variables to URLs in the output.
<?php
// Make the URL rewriter affect <a href> and <form> tags
ini_set('url_rewriter.tags','a=href,form=');
// Add a variable
output_add_rewrite_var('var', 'value');
// Output a link and a form
echo '<a href="">This link\'s URL will have a variable</a>';
echo '<form>';
echo '<p>This form will have a hidden input</p>';
echo '<input type="text" name="hello">';
echo '</form>';
?>
