PHP FTP 函数使用教程

PHP FTP 函数使用教程

引进的PHP的FTP
该功能提供的FTP客户端访问文件服务器通过文件传输协议（ FTP ） 。

该FTP函数是用来打开，登录名和密切的联系，以及上传，下载，重命名，删除和获取信息的文件从文件服务器。并不是所有的FTP功能将与每一个服务器或返回同样的结果。该FTP函数成为可与PHP 3 。

这些功能都是为了详细访问FTP服务器。如果你只希望阅读或写入文件在FTP服务器上，可以考虑使用包装的ftp://与文件的功能。 
 

安装
PHP的Windows版本内置了支持的FTP延长。因此， FTP函数将自动工作。

然而，如果您运行的是Linux版本的PHP中，你将不得不与编译PHP -启用-的F TP（ P HP4中+ ）或- wi th-的F T P（P H P3中）得到的F T P职能工作。 
 

PHP的FTP函数
PHP的：显示最早的PHP版本，支持的功能。

Function	Description	PHP
ftp_alloc()	Allocates space for a file to be uploaded to the FTP server	5
ftp_cdup()	Changes the current directory to the parent directory on the FTP server	3
ftp_chdir()	Changes the current directory on the FTP server	3
ftp_chmod()	Sets permissions on a file via FTP	5
ftp_close()	Closes an FTP connection	4
ftp_connect()	Opens an FTP connection	3
ftp_delete()	Deletes a file on the FTP server	3
ftp_exec()	Executes a program/command on the FTP server	4
ftp_fget()	Downloads a file from the FTP server and saves it to an open file	3
ftp_fput()	Uploads from an open file and saves it to a file on the FTP server	3
ftp_get_option()	Returns runtime behaviors of the FTP connection	4
ftp_get()	Downloads a file from the FTP server	3
ftp_login()	Logs on to an FTP connection	3
ftp_mdtm()	Returns the last modified time of a specified file	3
ftp_mkdir()	Creates a new directory on the FTP server	3
ftp_nb_continue()	Continues retrieving/sending a file (non-blocking)	4
ftp_nb_fget()	Downloads a file from the FTP server and saves it to an open file (non-blocking)	4
ftp_nb_fput()	Uploads from an open file and saves it to a file on the FTP server (non-blocking)	4
ftp_nb_get()	Downloads a file from the FTP server (non-blocking)	4
ftp_nb_put()	Uploads a file to the FTP server (non-blocking)	4
ftp_nlist()	Lists the files in a specified directory on the FTP server	3
ftp_pasv()	Turns passive mode on or off	3
ftp_put()	Uploads a file to the FTP server	3
ftp_pwd()	Returns the current directory name	3
ftp_quit()	Alias of ftp_close()	3
ftp_raw()	Sends a raw command to the FTP server	5
ftp_rawlist()	Returns a detailed list of files in the specified directory	3
ftp_rename()	Renames a file or directory on the FTP server	3
ftp_rmdir()	Removes a directory on the FTP server	3
ftp_set_option()	Sets runtime options for the FTP connection	4
ftp_site()	Sends a SITE command to the server	3
ftp_size()	Returns the size of the specified file	3
ftp_ssl_connect()	Opens a secure SSL-FTP connection	4
ftp_systype()	Returns the system type identifier of the FTP server	3

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PHP FTP Constants

PHP: indicates the earliest version of PHP that supports the constant.

Constant	Description	PHP
FTP_ASCII		3
FTP_TEXT		3
FTP_BINARY		3
FTP_IMAGE		3
FTP_TIMEOUT_SEC		3
FTP_AUTOSEEK		4
FTP_AUTORESUME	Determine resume position and start position for get and put requests automatically	4
FTP_FAILED	Asynchronous transfer has failed	4
FTP_FINISHED	Asynchronous transfer has finished	4
FTP_MOREDATA	Asynchronous transfer is still active	4