How can you set a default value for a $_GET parameter if it is not present in the URL in PHP?

If a $_GET parameter is not present in the URL, you can set a default value for it by checking if the parameter is set using isset(). If it is not set, you can assign a default value to it. This ensures that your code does not throw errors when trying to access a non-existent $_GET parameter. 

// Check if the $_GET parameter is set, if not, assign a default value
$param = isset($_GET['param']) ? $_GET['param'] : 'default_value';

// Now you can use $param in your code with the default value if not present in the URL

Keywords

PHP $_GET default value URL parameter

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