(PHP 5, PHP 7)
ftp_chmod — Set permissions on a file via FTP
ftp_chmod ( resource $ftp_stream , int $mode , string $filename ) : int
Sets the permissions on the specified remote file to mode.
ftp_stream
The link identifier of the FTP connection.
mode
The new permissions, given as an octal value.
filename
The remote file.
Returns the new file permissions on success or false on error.
Example #1 ftp_chmod() example
<?php
$file = 'public_html/index.php';
// set up basic connection
$conn_id = ftp_connect($ftp_server);
// login with username and password
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
// try to chmod $file to 644
if (ftp_chmod($conn_id, 0644, $file) !== false) {
echo "$file chmoded successfully to 644\n";
} else {
echo "could not chmod $file\n";
}
// close the connection
ftp_close($conn_id);
?>
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https://www.php.net/manual/en/function.ftp-chmod.php