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<?php
namespace Laminas\Ldap;
use LDAP\Connection;
use LDAP\Result;
use LDAP\ResultEntry;
use function is_a;
use function is_object;
use function is_resource;
use function version_compare;
use const PHP_VERSION;
/**
* Laminas\Ldap\Handler is a collection of LDAP handler related functions.
*/
class Handler
{
/**
* @param mixed $handle
* @param class-string<Connection>|class-string<ResultEntry>|class-string<Result> $handleClassName
* @psalm-assert-if-true resource|Connection|Result|ResultEntry $handle
*/
private static function isHandle($handle, string $handleClassName): bool
{
$useResource = version_compare(PHP_VERSION, '8.1.0') < 0;
return ($useResource && is_resource($handle))
|| (! $useResource && is_object($handle) && is_a($handle, $handleClassName));
}
/**
* Checks if the given handle is an LDAP connection object or a resource based on the running PHP version.
*
* @param mixed $handle
* @return bool
* @psalm-assert-if-true resource|Connection $handle
*/
public static function isLdapHandle($handle)
{
return self::isHandle($handle, Connection::class);
}
/**
* Checks if the given handle is an LDAP result object or a resource based on the running PHP version.
*
* @param mixed $handle
* @return bool
* @psalm-assert-if-true resource|Result $handle
*/
public static function isResultHandle($handle)
{
return self::isHandle($handle, Result::class);
}
/**
* Checks if the given handle is an LDAP result entry object or a resource based on the running PHP version.
*
* @param mixed $handle
* @return bool
* @psalm-assert-if-true resource|ResultEntry $handle
*/
public static function isResultEntryHandle($handle)
{
return self::isHandle($handle, ResultEntry::class);
}
}
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