Question

我有大约12个PHP函数，每个函数调用$ ldap_connect，它使用ldap_bind（）

所以 - 这是否意味着当我调用所有函数时，我的ldap服务器会产生12个ldap绑定？

如果是这样 - 应该何时使用ldap_unbind（）函数？我试过搜索这个，但没有任何结果，我似乎发现每次都“解开”，但这并不是特定的。这是否意味着在我返回数据之前在所有12个函数中放置一个unbind，或者在我的logout页面上取消绑定，我还会在其中执行session_destroy（）？

由于

编辑：代码

    const int MAX_PATH = 260;

    [StructLayout(LayoutKind.Sequential)]
    public struct RASENTRY
    {
          public int       dwSize;
          public int       dwfOptions;
          public int       dwCountryID;
          public int       dwCountryCode;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) RasFieldSizeConstants.RAS_MaxAreaCode+1)]
          public string       szAreaCode;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) RasFieldSizeConstants.RAS_MaxPhoneNumber+1)]
          public string       szLocalPhoneNumber;
          public int       dwAlternateOffset;
          public RASIPADDR   ipaddr;
          public RASIPADDR   ipaddrDns;
          public RASIPADDR   ipaddrDnsAlt;
          public RASIPADDR   ipaddrWins;
          public RASIPADDR   ipaddrWinsAlt;
          public int       dwFrameSize;
          public int       dwfNetProtocols;
          public int       dwFramingProtocol;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) MAX_PATH)]
          public string       szScript;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) MAX_PATH)]
          public string       szAutodialDll;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) MAX_PATH)]
          public string       szAutodialFunc;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) RasFieldSizeConstants.RAS_MaxDeviceType + 1)]
          public string       szDeviceType;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) RasFieldSizeConstants.RAS_MaxDeviceName + 1)]
          public string       szDeviceName;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) RasFieldSizeConstants.RAS_MaxPadType + 1)]
          public string       szX25PadType;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) RasFieldSizeConstants.RAS_MaxX25Address + 1)]
          public string       szX25Address;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) RasFieldSizeConstants.RAS_MaxFacilities + 1)]
          public string       szX25Facilities;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) RasFieldSizeConstants.RAS_MaxUserData + 1)]
          public string       szX25UserData;
          public int       dwChannels;
          public int       dwReserved1;
          public int       dwReserved2;
          public int       dwSubEntries;
          public int       dwDialMode;
          public int       dwDialExtraPercent;
          public int       dwDialExtraSampleSeconds;
          public int       dwHangUpExtraPercent;
          public int       dwHangUpExtraSampleSeconds;
          public int       dwIdleDisconnectSeconds;
          public int       dwType;
          public int       dwEncryptionType;
          public int       dwCustomAuthKey;
          public Guid        guidId;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) MAX_PATH)]
          public string       szCustomDialDll;
          public int       dwVpnStrategy;
          public int       dwfOptions2;
          public int       dwfOptions3;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) RasFieldSizeConstants.RAS_MaxDnsSuffix)]
          public string       szDnsSuffix;
          public int       dwTcpWindowSize;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) MAX_PATH)]
          public string       szPrerequisitePbk;
          [MarshalAs(UnmanagedType.ByValTStr,SizeConst =
                (int) RasFieldSizeConstants.RAS_MaxEntryName)]
          public string       szPrerequisiteEntry;
          public int       dwRedialCount;
          public int       dwRedialPause;
          RASIPV6ADDR ipv6addrDns;
          RASIPV6ADDR ipv6addrDnsAlt;
          public int       dwIPv4InterfaceMetric;
          public int       dwIPv6InterfaceMetric;
          RASIPV6ADDR ipv6addr;
          public int       dwIPv6PrefixLength;
          public int       dwNetworkOutageTime;
    }

public enum RasFieldSizeConstants
{
    RAS_MaxDeviceType = 16,
    RAS_MaxPhoneNumber = 128,
    RAS_MaxIpAddress = 15,
    RAS_MaxIpxAddress = 21,
    RAS_MaxEntryName = 256,
    RAS_MaxDeviceName = 128,
    RAS_MaxCallbackNumber = RAS_MaxPhoneNumber,
    RAS_MaxAreaCode = 10,
    RAS_MaxPadType = 32,
    RAS_MaxX25Address = 200,
    RAS_MaxFacilities = 200,
    RAS_MaxUserData = 200,
    RAS_MaxReplyMessage = 1024,
    RAS_MaxDnsSuffix = 256,
    UNLEN = 256,
    PWLEN = 256,
    DNLEN = 15
}

    public struct RASIPADDR {
        byte a;
        byte b;
        byte c;
        byte d;
    }

    public struct RASIPV6ADDR
    {
        byte a;
        byte b;
        byte c;
        byte d;
        byte e;
        byte f;
    }

然后我使用$ ldap_conn = create_ldap_connection（$ user，$ pass）;

所以，我的两个职能是：

function create_ldap_connection($username, $password) {
$ip = "MY LDAP SERVER";
$port = 389;

/* Binding */


$username = "DOMAIN\\" . $username;

$ldap_conn = ldap_connect($ip, $port) or die("Sorry! Could not connect to LDAP server ($ip)");
ldap_set_option($ldap_conn, LDAP_OPT_PROTOCOL_VERSION, 3) or die ("Couldn't set option version 3");
$starttls = ldap_start_tls($ldap_conn) or die ("Couldn't start secure TLS connection");
$result = ldap_bind($ldap_conn, $username, $password) or die("Error: Couldn't bind to server using provided credentials!");

if($result) {
return $ldap_conn;
} else {
die("
Error: Couldn't bind to server with supplied credentials!");
}
}

Answer 1

一旦绑定了连接，该连接上的先前绑定就是“未绑定”，并替换为当前绑定。因此，如果使用相同的连接，则无需使用unbind 12次。

但是当你连接和绑定12次很有可能你有12个并发连接到LDAP服务器，这可能不是你想要的。

所以也许您应该重新考虑函数的设置以调用ldap_connect（和ldap_bind）一次，然后使用该连接12次，而不是创建该连接12次。这可能会减少开销。

一个很好的例子是这样的：

$con = ldap_connect([$params]);
ldap_bind($con, [remaining params]);

ldap_[otherfunc]($con, [remaining params]);

一个不好的例子是这样的：

function connect() {
    $con = ldap_connect([params]);
    ldap_bind($con, [remaining params]);
    return $con;
}

ldap_[otehrfunc](conncet(), [remaining params]);

这将在每次调用connect()时创建一个新的ldap-connection。

要将其更改为“好”示例，您应该按如下方式更改，以多次使用连接：

$con = connect();
ldap_[otherfunc]($con, [remaining params]);

LDAP / PHP - 何时取消绑定

1 个答案: