Edit report at https://bugs.php.net/bug.php?id=61808&edit=1
ID: 61808 Comment by: nanocaiordo at gmail dot com Reported by: nanocaiordo at gmail dot com Summary: Could not implement interface Iterator Status: Open Type: Bug Package: Class/Object related Operating System: Fedora 17 x86_64 PHP Version: 5.4.0 Block user comment: N Private report: N New Comment: I also noticed few mismatches spread in documentation and or code logic. ### Quote: http://www.php.net/manual/en/class.traversable.php "The Traversable interface: Abstract base interface that cannot be implemented alone. Instead it must be implemented by either IteratorAggregate or Iterator." But then, "MySQLi_Result implements Traversable" ### Quote: http://php.net/manual/en/class.mysqli-result.php "5.4.0: Iterator support was added, as mysqli_result now implements Traversable." 1. Implementing Traversable doesn't provide Iterator support, instead clashes with it. 2. mysqli_result still doesn't include any of the "Iterator" methods ### . changes should be reverted. . or change it to "MySQLi_Result implements Iterator" and add all methods. . make the Traversable interface be liberally implemented. Cheers Previous Comments: ------------------------------------------------------------------------ [2012-04-22 07:02:22] nanocaiordo at gmail dot com Good decision indeed. But a fatal error, even if natural in this case, will make it impossible to run on both 5.3.10 and 5.4. Not sure if in this case a E_WARNING or a E_DEPRECATED could be used instead. However, I just found it in the changelog as "MySQLi: Added iterator support in MySQLi. mysqli_result implements Traversable." Shouldn't be added somewhere in the "migration" changes. ------------------------------------------------------------------------ [2012-04-22 06:42:29] larue...@php.net as of PHP-5.4, MySQLi_Result implements Traversable, but not sure, whether this should be a bug. ------------------------------------------------------------------------ [2012-04-22 05:29:01] nanocaiordo at gmail dot com Description: ------------ I cannot find anything within changelogs, bug reportings and documentations relating to this issue. It works fine in php 5.3.10, but gives me fatal error in PHP 5.4. Test script: --------------- <?php error_reporting(E_ALL | E_DEPRECATED | E_STRICT); ini_set('display_errors', 1); interface Foo_SQL_Interface_Result extends ArrayAccess, Countable, Iterator { public function data_seek($offset); public function fetch_all($resulttype=MYSQLI_NUM); public function fetch_array(); public function fetch_assoc(); public function fetch_field_direct($offset); public function fetch_field(); public function fetch_fields(); public function fetch_object(); public function fetch_row(); public function field_seek($offset); public function free(); } class Foo_MySQLi_UseResult extends MySQLi_Result { function __construct(MySQLi $obj) { parent::__construct($obj); } public function fetch_array($type_cast=false) {} public function fetch_assoc($type_cast=false) {} public function fetch_row($type_cast=false) {} public function fetch_all($resulttype=MYSQLI_ASSOC, $type_cast=false) {} } class Foo_MySQLi_Result extends Foo_MySQLi_UseResult implements Foo_SQL_Interface_Result { public function data_seek($offset) {} public function fetch_field_direct($offset) {} public function field_seek($offset) {} # ArrayAccess public function offsetExists($k) {} public function offsetGet($k) {} public function offsetSet($k, $v) {} public function offsetUnset($k) {} # Countable public function count() {} # Iterator public function key() {} public function current() {} public function next() {} public function rewind() {} public function valid() {} } Actual result: -------------- Fatal error: Class Foo_MySQLi_Result could not implement interface Iterator in Unknown on line 0 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=61808&edit=1
