PHP 8.2.0 Beta 3 available for testing


(PHP 5 >= 5.2.0, PHP 7, PHP 8)

ReflectionFunctionAbstract::getFileNameGets file name


public ReflectionFunctionAbstract::getFileName(): string|false

Gets the file name from a user-defined function.


This function has no parameters.

Return Values

Returns the filename of the file in which the function has been defined. If the class is defined in the PHP core or in a PHP extension, false is returned.

See Also

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User Contributed Notes 1 note

stein at visibone dot com
9 years ago
Returns FALSE for an internal function (when isInternal() returns TRUE, e.g. for 'strlen').
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