Executes a given command on the server (the SITE EXEC command is added by the method).
Paramètres
string $command - The command to be executed (without SITE EXEC).
Valeur retournée
mixed - true on success, otherwise PEAR::Error.
Valeurs renvoyées
The returned PEAR_Error object in case of an error
is specific. There is only one errornumber which may occur. The message given by this error
will contain the directory where the error occurred in "Execution of command '$command' failed".
operation fails.
Note
Cette fonction ne peut pas être appelée de façon statique.
