ftp_delete()函數是PHP中的內置函數,用於刪除FTP服務器上的文件。
用法:
ftp_delete( $ftp_connection, $file )
參數:該函數接受上述和以下描述的兩個參數:
- $ftp_connection:它是必填參數。它指定用於執行FTP命令或函數的現有FTP連接。
- $file:它是必填參數。它指定要刪除的服務器的文件路徑。
返回值:成功返回TRUE,失敗返回FALSE。
注意:
- 此函數可用於PHP 4.0.0和更高版本。
- 以下示例無法在在線IDE上運行。因此,請嘗試使用適當的ftp服務器名稱,用戶名和密碼在某些PHP托管服務器或localhost中運行。
- ★★★確保作為參數刪除提供的文件存在,並且具有登錄ftp連接的ftp用戶有權刪除的文件,否則會產生錯誤。
例:
<?php
// Connect to FTP server
// Assign ftp server to the variable
$ftp_server = "localhost";
// Use correct ftp username
$ftp_username="user";
// Use correct ftp password corresponding
// to the ftp username
$ftp_userpass="user";
// Filename or filename with path to specify
// the file on server to be deleted
$file = "test.txt";
// Establishing ftp connection
$ftp_connection = ftp_connect($ftp_server)
or die("Could not connect to $ftp_server");
if($ftp_connection) {
echo "successfully connected to the ftp server!";
// Logging in to established connection with
// ftp username and password
$login = ftp_login($ftp_connection, $ftp_username, $ftp_userpass);
if($login) {
// Checking whether logged in successfully or not
echo "<br>logged in successfully!";
// ftp_delete() function to delete file from FTP server
if (ftp_delete($ftp_connection, $file)) {
echo "<br>deletion of " . $file . " is successful.";
}
else {
echo "<br>Error while deleting the file " . $file;
}
}
else {
echo "<br>login failed!";
}
// Closeing connection
if(ftp_close($ftp_connection)) {
echo "<br>Connection closed Successfully!";
}
}
?>
輸出:
successfully connected to the ftp server! logged in successfully! deletion of ./htdocs/test.txt is successful. Connection closed Successfully!
如果該文件被刪除並再次運行同一程序,但前提是該文件不存在(已刪除),因此會發生錯誤。輸出看起來像
successfully connected to the ftp server! logged in successfully! Error while deleting the file ./htdocs/test.txt Connection closed Successfully!
參考: https://www.php.net/manual/en/function.ftp-delete.php
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注:本文由純淨天空篩選整理自gekcho大神的英文原創作品 PHP | ftp_delete() function。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。