Filesystem functions

  • basename – It returns trailing name component of path
  • chgrp – It can be used to change file group
  • chmod – It can be used to change file permission
  • chown – It can be used to change file ownership
  • clearstatcache – It can be used to clears file status cache
  • copy – It can be used to copy file
  • delete – Check unlink() or unset()
  • dirname – It returns parent directory’s path
  • disk_free_space – It returns available space on filesystem or disk partition
  • disk_total_space – It returns the total size of a filesystem or disk partitio
  • diskfreespace – Its an alias of disk_free_space()
  • fclose – It closes an open file pointer
  • feof – It checks for end-of-file on a file pointer
  • fflush – It flushes the output to a file
  • fgetc – It returns character from file pointer
  • fgetcsv – It returns line from file pointer and parse for CSV fields
  • fgets – It returns line from file pointer
  • fgetss – It returns line from file pointer and strip HTML tags
  • file_exists – It checks whether a file or directory exists
  • file_get_contents – It reads entire file
  • file_put_contents – It writes a string to a file
  • file – It reads entire file into an array
  • fileatime – It returns last access time of file
  • filectime – It returns inode change time of file
  • filegroup – It returns file group
  • fileinode – It returns file inode
  • filemtime – It returns file modification time
  • fileowner – It returns  file owner
  • fileperms – It returns  file permissions
  • filesize – It returns  file size
  • filetype – It returns  file type
  • flock – It can be used to lock the file
  • fnmatch – Match filename against a pattern
  • fopen – It opens file or URL
  • fpassthru – It outputs all remaining data on a file pointer
  • fputcsv – It format line as CSV and write to file pointer
  • fputs – Its an  alias of fwrite() and writes to a file
  • fread – It can be used to read the content from a file
  • fscanf – It parses input from a file according to a format
  • fseek – It seeks on a file pointer
  • fstat – It returns information about a file using an open file pointer
  • ftell – It returns the current position of the file pointer
  • ftruncate – It truncates a file to a given length
  • fwrite – It writes the string to a file
  • glob – It finds pathnames matching a pattern
  • is_dir – It checks whether the filename is a directory
  • is_executable – It checks whether the filename is executable
  • is_file – It checks whether the filename is a regular file
  • is_link – It checks whether the filename is a symbolic link
  • is_readable – It checks whether the file exists and is readable
  • is_uploaded_file – It checks whether the file was uploaded via HTTP POST
  • is_writable – It checks whether  the filename is writable
  • is_writeable – Its an Alias of is_writable() and  checks whether  the filename is writable
  • lchgrp – It changes group ownership of symlink
  • lchown – It changes user ownership of symlink
  • link – It creates a hard link
  • linkinfo – It returns information about a link
  • lstat – It returns information about a file or symbolic link
  • mkdir – It can be used to create directory
  • move_uploaded_file – It moves an uploaded file to a new location
  • parse_ini_file – It parses a configuration file
  • parse_ini_string – It parse a configuration string
  • pathinfo – It returns information about a file path
  • pclose – It closes process file pointer
  • popen – It opens process file pointer
  • readfile – It outputs a file
  • readlink – It returns the target of a symbolic link
  • realpath_cache_get – It returns realpath cache entries
  • realpath_cache_size – It returns realpath cache size
  • realpath – It returns canonicalized absolute pathname
  • rename – It renames a file or directory
  • rewind – It rewinds the position of a file pointer
  • rmdir – It can be used to remove a directory
  • set_file_buffer – Its an alias of stream_set_write_buffer()
  • stat – It returns information about a file
  • symlink – It creates a symbolic link
  • tempnam – It create file with unique file name
  • tmpfile – It creates a temporary file
  • touch – It sets access and modification time of file
  • umask – It changes file permissions of file
  • unlink – It deletes the file
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