What are some alternative ways in PHP to call a file without including its contents?

When we want to call a file in PHP without including its contents, we can use the `require_once` or `include_once` functions. These functions will include the file only once, ensuring that it is not duplicated in the code. This is useful when we want to access functions or variables defined in the external file without actually including its contents. 

<?php
require_once 'file.php'; // This will include the file.php without duplicating its contents
// Now you can access functions or variables defined in file.php
?>

Keywords

require_once include_once file_get_contents fopen stream_context_create

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