ldap_compare

(PHP 4 >= 4.0.2, PHP 5)

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

说明

mixed ldap_compare ( resource $link_identifier , string $dn , string $attribute , string $value )

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

参数

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.

返回值

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

范例

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.";
}
?>

注释

Warning

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


	PHP5中文手册 ldap_close ldap_connect LDAP PHP Manual ldap_compare (PHP 4 >= 4.0.2, PHP 5) ldap_compare — Compare value of attribute found in entry specified with DN 说明 mixed ldap_compare ( resource `$link_identifier` , string `$dn` , string `$attribute` , string `$value` ) Compare `value` of `attribute` with value of same attribute in an LDAP directory entry. 参数 `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. 返回值 Returns `TRUE` if `value` matches otherwise returns `FALSE`. Returns -1 on error. 范例 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."; } ?> 注释 Warning ldap_compare() can NOT be used to compare BINARY values! ldap_close ldap_connect LDAP PHP Manual