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PHP 8.4.0 RC2 available for testing
Getting Started
Introduction
A simple tutorial
Language Reference
Basic syntax
Types
Variables
Constants
Expressions
Operators
Control Structures
Functions
Classes and Objects
Namespaces
Enumerations
Errors
Exceptions
Fibers
Generators
Attributes
References Explained
Predefined Variables
Predefined Exceptions
Predefined Interfaces and Classes
Predefined Attributes
Context options and parameters
Supported Protocols and Wrappers
Security
Introduction
General considerations
Installed as CGI binary
Installed as an Apache module
Session Security
Filesystem Security
Database Security
Error Reporting
User Submitted Data
Hiding PHP
Keeping Current
Features
HTTP authentication with PHP
Cookies
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Handling file uploads
Using remote files
Connection handling
Persistent Database Connections
Command line usage
Garbage Collection
DTrace Dynamic Tracing
Function Reference
Affecting PHP's Behaviour
Audio Formats Manipulation
Authentication Services
Command Line Specific Extensions
Compression and Archive Extensions
Cryptography Extensions
Database Extensions
Date and Time Related Extensions
File System Related Extensions
Human Language and Character Encoding Support
Image Processing and Generation
Mail Related Extensions
Mathematical Extensions
Non-Text MIME Output
Process Control Extensions
Other Basic Extensions
Other Services
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Variable and Type Related Extensions
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PHP Manual
Function Reference
File System Related Extensions
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Filesystem
Introduction
Installing/Configuring
Runtime Configuration
Resource Types
Predefined Constants
Filesystem Functions
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 a 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
fdatasync
— Synchronizes data (but not meta-data) to the file
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
— Reads entire file into an array
file_exists
— Checks whether a file or directory exists
file_get_contents
— Reads entire file into a string
file_put_contents
— Write data to a file
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
fsync
— Synchronizes changes to the file (including meta-data)
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
— Returns canonicalized absolute pathname
realpath_cache_get
— Get realpath cache entries
realpath_cache_size
— Get realpath cache size
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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