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Filesystem Functions

See Also

For related functions, see also the Directory and Program Execution sections.

For a list and explanation of the various URL wrappers that can be used as remote files, see also Supported Protocols and Wrappers.

Table of Contents

  • basename - Returns trailing name component of path
  • chgrp - Changes file group
  • chmod - Changes file mode
  • chown - Changes file owner
  • clearstatcache - Clears file status cache
  • copy - Copies file
  • delete - See unlink or unset
  • dirname - Returns parent directory's path
  • disk_free_space - Returns available space on filesystem or disk partition
  • disk_total_space - Returns the total size of a filesystem or disk partition
  • diskfreespace - Alias of disk_free_space
  • fclose - Closes an open file pointer
  • feof - Tests for end-of-file on a file pointer
  • fflush - Flushes the output to a file
  • fgetc - Gets character from file pointer
  • fgetcsv - Gets line from file pointer and parse for CSV fields
  • fgets - Gets line from file pointer
  • fgetss - Gets line from file pointer and strip HTML tags
  • file_exists - Checks whether a file or directory exists
  • file_get_contents - Reads entire file into a string
  • file_put_contents - Write a string to a file
  • file - Reads entire file into an array
  • fileatime - Gets last access time of file
  • filectime - Gets inode change time of file
  • filegroup - Gets file group
  • fileinode - Gets file inode
  • filemtime - Gets file modification time
  • fileowner - Gets file owner
  • fileperms - Gets file permissions
  • filesize - Gets file size
  • filetype - Gets file type
  • flock - Portable advisory file locking
  • fnmatch - Match filename against a pattern
  • fopen - Opens file or URL
  • fpassthru - Output all remaining data on a file pointer
  • fputcsv - Format line as CSV and write to file pointer
  • fputs - Alias of fwrite
  • fread - Binary-safe file read
  • fscanf - Parses input from a file according to a format
  • fseek - Seeks on a file pointer
  • fstat - Gets information about a file using an open file pointer
  • ftell - Returns the current position of the file read/write pointer
  • ftruncate - Truncates a file to a given length
  • fwrite - Binary-safe file write
  • glob - Find pathnames matching a pattern
  • is_dir - Tells whether the filename is a directory
  • is_executable - Tells whether the filename is executable
  • is_file - Tells whether the filename is a regular file
  • is_link - Tells whether the filename is a symbolic link
  • is_readable - Tells whether a file exists and is readable
  • is_uploaded_file - Tells whether the file was uploaded via HTTP POST
  • is_writable - Tells whether the filename is writable
  • is_writeable - Alias of is_writable
  • lchgrp - Changes group ownership of symlink
  • lchown - Changes user ownership of symlink
  • link - Create a hard link
  • linkinfo - Gets information about a link
  • lstat - Gives information about a file or symbolic link
  • mkdir - Makes directory
  • move_uploaded_file - Moves an uploaded file to a new location
  • parse_ini_file - Parse a configuration file
  • parse_ini_string - Parse a configuration string
  • pathinfo - Returns information about a file path
  • pclose - Closes process file pointer
  • popen - Opens process file pointer
  • readfile - Outputs a file
  • readlink - Returns the target of a symbolic link
  • realpath_cache_get - Get realpath cache entries
  • realpath_cache_size - Get realpath cache size
  • realpath - Returns canonicalized absolute pathname
  • rename - Renames a file or directory
  • rewind - Rewind the position of a file pointer
  • rmdir - Removes directory
  • set_file_buffer - Alias of stream_set_write_buffer
  • stat - Gives information about a file
  • symlink - Creates a symbolic link
  • tempnam - Create file with unique file name
  • tmpfile - Creates a temporary file
  • touch - Sets access and modification time of file
  • umask - Changes the current umask
  • unlink - Deletes a file

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