Example of filesystem function usage in php

Example of filesystem function usage in php

This article describes how to use filesystem functions in php. For more information, see

Basename-part of the file name in the returned path

Dirname-directory part of the returned path

 

The Code is as follows:

String basename (string $ path [, string $ suffix])

String dirname (string $ path)

 

 

Example:

 

The Code is as follows:

<? Php

$ Path = "/home/httpd/phpha.com/index.php ";

Echo basename ($ path );

Echo basename ($ path, '. php ');

Echo basename ($ path, '. XXX ');

Echo dirname ($ path );

?>

 

The Code is as follows:

// Result:

Index. php

Index

Index. php

/Home/httpd/phpha.com

 

 

Note: If the file name ends with a correct suffix file, this part will be removed.

 

Chgrp-change the group to which the file belongs

Chown-change the file owner

Chmod-change file Mode

 

The Code is as follows:

Bool chmod (string $ filename, int $ mode)

 

 

Example:

 

The Code is as follows:

<? Php

Chmod ('/home/phpha.txt', 0755 );

?>

Copy-copy an object

 

If (copy ('index. php', 'index. php. Bak ')){

Echo 'Copy success ';

}

?>

// The index. php. bak file is saved in the current directory.

 

 

 

Delete-see unlink or unset

Unlink-delete an object

The Code is as follows:

<? Php

If (unlink ('index. php. Bak ')){

Echo 'unlink success ';

}

?>

// Index. php. bak deleted

 

 

Disk_free_space-return the available space in the directory

Disk_total_space-returns the total disk size of a directory

Diskfreespace-disk_free_space alias

 

The Code is as follows:

<? Php

// In Windows:

Echo disk_free_space ("C:"), '<br/> ';

Echo disk_total_space ("C :");

?>

The Code is as follows:

// Result: the number of bytes is returned.

17433419776

32218386432

 

 

Fopen-open a file or URL

Fgets-read a row from the file pointer

Feof-test whether the file pointer is at the end of the file

Fread-read files (which can be safely used for binary files)

Fwrite-write a file (which can be safely used for binary files)

Fclose-close an opened file pointer

 

The Code is as follows:

<? Php

$ Fp = fopen('hello.txt ', 'R'); // open a file

$ N = 1;

While (! Feof ($ fp )){

Echo $ n, '-', fgets ($ fp), '<br/>'; // read a row and Output

$ N ++;

}

Fclose ($ fp); // close the file

?>

 

The Code is as follows:

// Output:

1-Welcome to my blog:

2-http://www.jb51.net

 

 

Fgetc-read characters from the file pointer

Fgetcsv-read a row from the file pointer and parse the CSV Field

Fgetss-read a row from the file pointer and filter out the HTML Tag

Fputcsv-format rows as CSV and Write File pointers

Fputs-fwrite alias

 

The Code is as follows:

<? Php

$ Fp = fopen('hello.txt ', 'R ');

While (false! ==( $ Char = fgetc ($ fp ))){

Echo $ char ,'-';

}

?>

 

 

The Code is as follows:

// Output:

W-e-l-c-o-m-e--t-o--m-y-B-l-o-g -: ---h-t-p-:-/-B-l-o-g -. -p-h--. -c-o-m-

 

 

File_exists-check whether the file or directory exists

 

 

Copy the Code as follows:

<? Php

If(file_exists('hello.txt ')){

Echo 'hello.txt exists ';

} Else {

Echo 'hello.txt not exists ';

}

?>

 

[/Code]

// Output:

Hello.txt exists

[/Code]

 

File_get_contents-read the entire file into a string

File_put_contents-write a string to a file

File-read the entire file into an array

 

The Code is as follows:

<? Php

If ($ content = file_get_contents('hello.txt ')){

File_put_contents('hello.txt. bak ', $ content );

}

?>

// A copy of hello.txt

<? Php

If ($ content = file('hello.txt ')){

Print_r ($ content );

}

?>

// Array. Each row is a group of several members.

Array

(

[0] => Welcome to my blog:

Http://www.jb51.net

)

 

 

Fileatime-the last time the file was accessed

Filectime-get the inode modification time of the file

Filegroup-the group for obtaining files

Fileinode-get the inode of the file

Filemtime-Get file modification time

Fileowner-get the file owner

Fileperms-Get File Permissions

Filesize-get the file size

Filetype-Get file type

 

The Code is as follows:

<? Php

Echo fileatime('hello.txt ');

Echo filectime('hello.txt ');

Echo filegroup('hello.txt ');

Echo filemtime('hello.txt ');

Echo fileowner('hello.txt ');

Echo substr (sprintf ('% o', fileperms('hello.txt'),-4 );

Echo filesize('hello.txt ');

Echo filetype('hello.txt ');

?>

 

 

 

Copy the Code as follows:

// Output:

1353329003

1353329003

0

1353330002

0

0666

42

File

 

 

Flock-lightweight consultation file locking

Fnmatch-match the file name in the pattern

Fflush-outputs buffered content to a file

Fpassthru-all the remaining data at the output file pointer

Fscanf-format input from File

Fseek-locate in file pointer

Fstat-Get file information through the opened file pointer

Ftell-returned file pointer read/write location

Ftruncate-truncates a file to a specified length

Glob-find the file path that matches the pattern

 

Is_dir-determine whether the given file name is a directory

Is_executable-determine whether a given file name can be executed

Is_file-determine whether the given file name is a normal file

Is_link-determine whether a given file name is a symbolic connection

Is_readable-determine whether the given file name is readable

Is_uploaded_file-determines whether the file is uploaded through http post.

Is_writable-determine whether a given file name can be written

Is_writeable-is_writable alias

Note: The above functions are used to determine whether a file or directory meets the corresponding conditions. TRUE or FALSE is returned.

 

Lchgrp-Changes group ownership of symlink

Lchown-Changes user ownership of symlink

Link-create a hard connection

Linkinfo-get the connection information

Lstat-displays information about a file or symbolic connection.

Mkdir-create a directory

Move_uploaded_file-move the uploaded file to a new location

Parse_ini_file-parse a configuration file

Pathinfo-returned file path information

Pclose-Disable process file pointer

Popen-open process file pointer

Readfile-output a file

Readlink-returns the target to which the symbolic connection points.

Realpath-returns the normalized absolute path name.

Rename-rename a file or directory

Rewind-position of the inverted file pointer

Rmdir-delete directory

Set_file_buffer-stream_set_write_buffer alias

Stat-File Information

Symlink-create a symbolic connection

Tempnam-create a file with a unique file name

Tmpfile-create a temporary file

Touch-set the file access and modification time

Umask-change the current umask

Clearstatcache-Clear the File status Cache