Stub PHP native methods

Question

In my unit test, i'm looking to stub the behaviour of php's inbuilt file_get_contents() method.

Is there a way to stub native methods in PHP (such as file_get_contents() or print_r()) and the likes?

Answer 1

You aren't clear about what 'stub' means.

Do you mean getting doc for functions, like:

/**
 * (PHP 5 &gt;= 5.1.0)<br/>
 * Sets the default timezone used by all date/time functions in a script
 * @link http://php.net/manual/en/function.date-default-timezone-set.php
 * @param timezone_identifier string <p>
 * The timezone identifier, like UTC or
 * Europe/Lisbon. The list of valid identifiers is
 * available in the .
 * </p>
 * @return bool This function returns false if the
 * timezone_identifier isn't valid, or true
 * otherwise.
 */
function date_default_timezone_set ($timezone_identifier) {}

?

Answer 2

i've heard this should be possible with runkit.

Answer 3

If by "stub" you mean replace, there is a PHP override_function function; it's part of PECL though. You can also rename them.