Be aware! Operation not allowed on non-leaf.(PHP 4, PHP 5, PHP 7, PHP 8)
ldap_delete — Delete an entry from a directory
Deletes a particular entry in LDAP directory.
ldap通过 ldap_connect() 返回的 LDAP\Connection 实例。
dnThe distinguished name of an LDAP entity.
controlsArray of LDAP Controls to send with the request.
| 版本 | 说明 | 
|---|---|
| 8.1.0 | 现在 ldap参数接受 LDAP\Connection
  实例,之前接受有效的ldap linkresource。 | 
| 8.0.0 | controlsis nullable now; previously, it defaulted to[]. | 
| 7.3.0 | Support for controlsadded | 
Useful function to delete dn entries recursively
bool myldap_delete ( resource ds, string dn, bool recursive)
Returns TRUE on success, FALSE on failure
recursive is by default FALSE (same behaviour as ldap_delete)
function myldap_delete($ds,$dn,$recursive=false){
    if($recursive == false){
        return(ldap_delete($ds,$dn));
    }else{
        //searching for sub entries
        $sr=ldap_list($ds,$dn,"ObjectClass=*",array(""));
        $info = ldap_get_entries($ds, $sr);
        for($i=0;$i<$info['count'];$i++){
            //deleting recursively sub entries
            $result=myldap_delete($ds,$info[$i]['dn'],$recursive);
            if(!$result){
                //return result code, if delete fails
                return($result);
            }
        }
        return(ldap_delete($ds,$dn));
    }
}