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# is_file

(PHP 3, PHP 4 )

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.

This function will not work on remote files; the file to be examined must be accessible via the server's filesystem.

See also is_dir() and is_link().

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