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PHP File and Directory Functions

Common PHP File and Directory Functions

PHP Comes with a whole range of file and directory manipulation functions.

These Predefined Function allow you to check file attributes like copy, move delete etc.

Sr No	Function	What it Does
1	file_exists()	Tests if a file or directory exists or not. This function work for file and Directory Both
2	filesize()	Returns the size of a file in bytes
3	realpath()	Returns the absolute path of a file
4	pathinfo()	Returns an array of information about a file and its path
5	stat()	Provides information on file attributes and its permissions
6	is_readable()	Tests if a file is readable
7	is_writable()	Tests if a file is writable
8	is_executable	Tests if a file is executable
9	fopen()	Open a file(Write mode of file why want to open)
10	fread()	Read a file(Files must be opened in read mode)
11	fgets()	Read first line of a file(File must be opened in read mode)
12	fgetc()	Read first Character of a file(File must be opened in read mode)
13	fwrite()	Write Contents/information inside a file(File must be opened in write mode)
14	file_put_contents()	Write Contents/information inside a file(it accept 2 parameters, file name and content)
15	file_get_contents()	Read information from a file(it accpet 1 parameters file name only)
16	is_file()	Tests if a directory is a file
17	copy()	Copies a file
18	rename()	Rename a file
19	unlink()	Deletes a file
20	include()	Reads an external file into the current PHP Script
21	require()	Reads an external file into the current PHP Script
22	include_once()	Reads an external file into the current PHP Script(One time only)
23	require_once()	Reads an external file into the current PHP Script(One time only)
24	fclose()	Close a open file
25	is_dir()	Tests if a directory entry is a directory
26	is_dir()	Tests if a directory entry is a directory
27	mkdir()	Creates a directory
28	rmdir()	Removes a directory
29	opendir()	Open a directory
30	readdir()	Read a directory(It reads a signle file at a time, so must use loop to read entire directory)
31	scandir()	Read a directory(Return result in array format)

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