PHP FTP funktioner
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PHP FTP-introduktion
FTP-funktioner giver klientadgang til filservere via filoverførselsprotokollen (FTP).
FTP-funktioner bruges til at åbne, logge ind og lukke forbindelser, samt til at uploade, downloade, omdøbe, slette og få filinformation fra filserveren. Ikke alle FTP-funktioner virker på hver server eller returnerer de samme resultater. FTP-funktioner har været tilgængelige siden PHP 3.
Disse funktioner bruges til at udføre detaljeret adgang til FTP-servere. Hvis du kun har brug for at udføre læse/skrive-operationer på FTP-servere, anbefales det at bruge ftp:// wrapper i Filesystem-funktionerne.
Install
The Windows version of PHP has built-in support for the FTP extension module. These functions can be used without loading any additional extension libraries.
However, if you are running a PHP Linux version, please add the --enable-ftp option (PHP 4 or above) or --with-ftp (PHP 3 version) when compiling.
PHP FTP funktioner
PHP：Indicate the earliest PHP version that supports this function.
| Function | 描述 | PHP |
|---|---|---|
| ftp_alloc() | Allocate space for the file to be uploaded to the FTP server. | 5 |
| ftp_cdup() | Change the current directory to the parent directory on the FTP server. | 3 |
| ftp_chdir() | Change the current directory on the FTP server. | 3 |
| ftp_chmod() | Set file permissions on FTP through FTP. | 5 |
| ftp_close() | Close the FTP connection. | 4 |
| ftp_connect() | Open an FTP connection. | 3 |
| ftp_delete() | Delete a file on the FTP server. | 3 |
| ftp_exec() | Execute a program/command on FTP. | 4 |
| ftp_fget() | Download a file from the FTP server and save it to a locally opened file. | 3 |
| ftp_fput() | Upload an open file and save it as a file on the FTP server. | 3 |
| ftp_get_option() | Return various different option settings of the current FTP connection. | 4 |
| ftp_get() | Download a file from the FTP server. | 3 |
| ftp_login() | Log in to the FTP server. | 3 |
| ftp_mdtm() | Return the last modification time of the specified file. | 3 |
| ftp_mkdir() | Create a new directory on the FTP server. | 3 |
| ftp_nb_continue() | Continuous file retrieval/sending (non-blocking). | 4 |
| ftp_nb_fget() | Download a file from the FTP server and save it to a locally opened file (non-blocking). | 4 |
| ftp_nb_fput() | Upload an open file and save it as a file on the FTP server (non-blocking). | 4 |
| ftp_nb_get() | Download a file from the FTP server (non-blocking). | 4 |
| ftp_nb_put() | Upload a file to the server (non-blocking). | 4 |
| ftp_nlist() | Return the file list of the specified directory. | 3 |
| ftp_pasv() | Return whether the current FTP passive mode is enabled. | 3 |
| ftp_put() | 把文件上传到服务器。 | 3 |
| ftp_pwd() | 返回当前目录名称。 | 3 |
| ftp_quit() | ftp_close() 的别名。 | 3 |
| ftp_raw() | 向 FTP 服务器发送一个 raw 命令。 | 5 |
| ftp_rawlist() | 返回指定目录中文件的详细列表。 | 3 |
| ftp_rename() | 重命名 FTP 服务器上的文件或目录。 | 3 |
| ftp_rmdir() | 删除 FTP 服务器上的目录。 | 3 |
| ftp_set_option() | 设置各种 FTP 运行时选项。 | 4 |
| ftp_site() | 向服务器发送 SITE 命令。 | 3 |
| ftp_size() | 返回指定文件的大小。 | 3 |
| ftp_ssl_connect() | 打开一个安全的 SSL-FTP 连接。 | 4 |
| ftp_systype() | 返回远程 FTP 服务器的系统类型标识符。 | 3 |
PHP FTP 常量
PHP：指示支持该常量的最早的 PHP 版本。
| 常量 | 描述 | PHP |
|---|---|---|
| FTP_ASCII | 3 | |
| FTP_TEXT | 3 | |
| FTP_BINARY | 3 | |
| FTP_IMAGE | 3 | |
| FTP_TIMEOUT_SEC | 3 | |
| FTP_AUTOSEEK | 4 | |
| FTP_AUTORESUME |
为 GET 和 PUT 请求自动决定恢复和开始的位置 只能工作在 FTP_AUTOSEEK 打开的情况下 |
4 |
| FTP_FAILED | 异步传输失败 | 4 |
| FTP_FINISHED | 异步传输成功 | 4 |
| FTP_MOREDATA | 异步传输是活动状态的 | 4 |
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