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# is_file

(PHP 3 <= 3.0.18, PHP 4 >= 4.0.0)

is_file -- Tells whether the filename is a regular file

## Description

``bool is_file` (string filename)`

Returns `TRUE` if the filename exists and is a regular file.

The results of this function are cached. See clearstatcache() for more details.

See also is_dir() and is_link().

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