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    ldap_get_option

    (PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

    ldap_get_option — Get the current value for given option

    说明

    ldap_get_option(LDAP\Connection $ldap, int $option, array|string|int &$value = null): bool

    Sets value to the value of the specified option.

    参数

    ldap

    通过 ldap_connect() 返回的 LDAP\Connection 实例。

    option

    The parameter option can be one of:

    Option Type since
    LDAP_OPT_DEREF int  
    LDAP_OPT_SIZELIMIT int  
    LDAP_OPT_TIMELIMIT int  
    LDAP_OPT_NETWORK_TIMEOUT int  
    LDAP_OPT_PROTOCOL_VERSION int  
    LDAP_OPT_ERROR_NUMBER int  
    LDAP_OPT_DIAGNOSTIC_MESSAGE string  
    LDAP_OPT_REFERRALS int  
    LDAP_OPT_RESTART int  
    LDAP_OPT_HOST_NAME string  
    LDAP_OPT_ERROR_STRING string  
    LDAP_OPT_MATCHED_DN string  
    LDAP_OPT_SERVER_CONTROLS array  
    LDAP_OPT_CLIENT_CONTROLS array  
    LDAP_OPT_X_KEEPALIVE_IDLE int 7.1
    LDAP_OPT_X_KEEPALIVE_PROBES int 7.1
    LDAP_OPT_X_KEEPALIVE_INTERVAL int 7.1
    LDAP_OPT_X_TLS_CACERTDIR string 7.1
    LDAP_OPT_X_TLS_CACERTFILE string 7.1
    LDAP_OPT_X_TLS_CERTFILE string 7.1
    LDAP_OPT_X_TLS_CIPHER_SUITE string 7.1
    LDAP_OPT_X_TLS_CRLCHECK int 7.1
    LDAP_OPT_X_TLS_CRL_NONE int 7.1
    LDAP_OPT_X_TLS_CRL_PEER int 7.1
    LDAP_OPT_X_TLS_CRL_ALL int 7.1
    LDAP_OPT_X_TLS_CRLFILE string 7.1
    LDAP_OPT_X_TLS_DHFILE string 7.1
    LDAP_OPT_X_TLS_KEYFILE string 7.1
    LDAP_OPT_X_TLS_PACKAGE string 7.1
    LDAP_OPT_X_TLS_PROTOCOL_MIN int 7.1
    LDAP_OPT_X_TLS_RANDOM_FILE string 7.1
    LDAP_OPT_X_TLS_REQUIRE_CERT int  

    value

    This will be set to the option value.

    返回值

    成功时返回 true， 或者在失败时返回 false。

    更新日志

    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 link resource。

    示例

    示例 #1 Check protocol version

    <?php
    // $ds is a valid LDAP\Connection instance for a directory server
    if (ldap_get_option($ds, LDAP_OPT_PROTOCOL_VERSION, $version)) {
    echo     "Using protocol version $version\n";
    } else {
    echo     "Unable to determine protocol version\n";
    }
    ?>

    注释

    注意:

    This function is only available when using OpenLDAP 2.x.x OR Netscape Directory SDK x.x.

    参见

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    User Contributed Notes 3 notes

    up
    8
    Anonymous
    8 years ago
    Following on from Jeremy S's example.
    Instead of defining LDAP_OPT_DIAGNOSTIC_MESSAGE as 0x32 then using it, you can just use the option already defined as that value :)

    LDAP_OPT_ERROR_STRING
    up
    6
    Jeremy S
    11 years ago
    Here is how to tell if an Active Directory user account expired:

    define('LDAP_OPT_DIAGNOSTIC_MESSAGE', 0x0032);

    ldap_set_option($conn, LDAP_OPT_PROTOCOL_VERSION, 3);
    ldap_set_option($conn, LDAP_OPT_REFERRALS, 0);

    $bind = ldap_bind($conn, $user, $pass);

    ldap_get_option($conn, LDAP_OPT_DIAGNOSTIC_MESSAGE, $extended_error);

    if (!empty($extended_error))
    {
        $errno = explode(',', $extended_error)[2];
        $errno = explode(' ', $errno)[2];
        $errno = intval($errno);

        if ($errno == 532)
            $err = 'Unable to login: Password expired.';
    }
    up
    1
    Maarten
    4 years ago
    PHP 7.1 added support for configuring the LDAP CA/Cert environment directly, rather than relying on the environment variables. I noticed that a lot of people are having trouble getting this to work.

    The correct way is:
    $ds=ldap_connect("ldap.google.com"); 
    ldap_set_option(NULL, LDAP_OPT_X_TLS_CERTFILE, "/path/file.crt");
    ldap_set_option(NULL, LDAP_OPT_X_TLS_KEYFILE, "/path/file.key");
    ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);
    ldap_set_option($ds, LDAP_OPT_REFERRALS, 0);
    ldap_start_tls($ds);
    ...
    ldap_close($ds);
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