F

• listen Registers a callback fired after every read, write, append, copy, move, delete, upload and symlink with (op, path, duration in ms, byte count - 0 where there is no content).

Inspection 6

• exists Whether the file exists.
• isReadable Whether the file can be read.
• isWritable Whether the file can be written to.
• size The size in bytes.
• modified The last modified time as a Unix timestamp.
• clearStat Clears PHP's stat cache for one path, or for everything when no path is given.

Path 6

• name Returns the filename without directory.
• stem Returns the filename without extension.
• extension The extension, without the dot.
• directory The path of the containing directory.
• resolve Returns the first path that resolves to a real file, or empty
• first Returns the first of $paths that is a file, as given (no symlinks resolved), or empty

Read / Write 5

• read The file's contents.
• send Streams the file to the output.
• write Writes $contents to $path, creating the file if it does not exist.
• chmod Sets a file's permission bits, e.g. 0600 for a private key that must not be group/world-readable.
• append Appends $contents to $path.

Operations 5

• copy Copies a file.
• mirror Copies $source to $destination if $destination is missing or older than $source, creating its directory first.
• move Moves or renames a file.
• delete Deletes a file.
• upload Moves a validated uploaded file to its destination.

Symlinks 3

• symlink Creates a symlink at $link pointing to $target.
• isLink Whether the path is a symlink.
• readLink Where a symlink points.

Metadata 2

• mime The mime type: by extension for common web files, else read from the contents.
• imageSize Returns [width, height] for an image file, or null if not readable.