GoLang ldap_compare

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PHP ldap_compare

PHP original manual for ldap_compare [ show | php.net ]

ldap_compare

(PHP 4 >= 4.0.2, PHP 5, PHP 7)

ldap_compare — Compare value of attribute found in entry specified with DN

Description

mixed ldap_compare ( resource $link_identifier , string $dn , string $attribute , string $value [, array $serverctrls ] )

Compare value of attribute with value of same attribute in an LDAP directory entry.

Parameters

link_identifier

An LDAP link identifier, returned by ldap_connect().

dn

The distinguished name of an LDAP entity.

attribute

The attribute name.

value

The compared value.

Return Values

Returns TRUE if value matches otherwise returns FALSE. Returns -1 on error.

Examples

The following example demonstrates how to check whether or not given password matches the one defined in DN specified entry.

Example #1 Complete example of password check

<?php

$ds=ldap_connect("localhost");  // assuming the LDAP server is on this host

if ($ds) {

    // bind
    if (ldap_bind($ds)) {

        // prepare data
        $dn = "cn=Matti Meikku, ou=My Unit, o=My Company, c=FI";
        $value = "secretpassword";
        $attr = "password";

        // compare value
        $r=ldap_compare($ds, $dn, $attr, $value);

        if ($r === -1) {
            echo "Error: " . ldap_error($ds);
        } elseif ($r === true) {
            echo "Password correct.";
        } elseif ($r === false) {
            echo "Wrong guess! Password incorrect.";
        }

    } else {
        echo "Unable to bind to LDAP server.";
    }

    ldap_close($ds);

} else {
    echo "Unable to connect to LDAP server.";
}
?>

Notes

Warning

ldap_compare() can NOT be used to compare BINARY values!