# Array Keys - Thread: https://externals.io/message/5169 - Original archive: https://news-web.php.net/php.internals/5169 - Started by LingWitt@insightbb.com on 2003-11-03T13:26:03+00:00 - Messages: 6 - Reply by email to internals@lists.php.net - More for agents: search with https://externals.io/search.md?q={query} · JSON API at https://externals.io/api · documentation at https://externals.io/llms.txt --- ## #5169 — LingWitt@insightbb.com — 2003-11-03T13:26:03+00:00 URL: https://externals.io/message/5169#5169 Now that objects are accounted for by references and id, it should be possible to use them as keys in an associative array. That might be an interesting feature to have. --- ## #5189 — LingWitt@insightbb.com — 2003-11-05T02:14:54+00:00 URL: https://externals.io/message/5169#5189 · In reply to: #5169 I don't want to seem naggish, but what do you think? > Now that objects are accounted for by references and id, it should be > possible to use them as keys in an associative array. That might be an > interesting feature to have. --- ## #5190 — Andi Gutmans — 2003-11-05T06:43:54+00:00 URL: https://externals.io/message/5169#5190 · In reply to: #5169 At 09:14 PM 11/4/2003 -0500, LingWitt@insightbb.com wrote: >I don't want to seem naggish, but what do you think? > > > > > […] I don't think it's a good idea because it would break lots of other things such as foreach(). keys have to be integers or strings. I suggest you create `key()` methods and call those, i.e., $obj->key() Sorry, Andi --- ## #5191 — netcat — 2003-11-05T07:08:46+00:00 URL: https://externals.io/message/5169#5191 · In reply to: #5189 LingWitt@insightbb.com wrote: > I don't want to seem naggish, but what do you think? > > > > > […] > Yes, nice and generally it's nice to have a language that it's possible to use anything as index but what use do you see for it ? Hash with objects as indexes ..... will hold additional data for objects? So why not store the data inside the object itself ? > > […] > -- NetCat -------------------------------------------------- FREE 10MB Email + Antivirus + POP3 + more... Get it at http://www.doal.co.il:81/free/?c=antivirus --- ## #5199 — Dirkjan Ochtman — 2003-11-05T09:45:42+00:00 URL: https://externals.io/message/5169#5199 · In reply to: #5169 If you really wanted to do this you could use a `serialize()`d version of the object as the key. wrote in message news:457640B1-0E01-11D8-97C5-000393030CE6@insightbb.com... > Now that objects are accounted for by references and id, it should be > possible to use them as keys in an associative array. That might be an > interesting feature to have. --- ## #5277 — LingWitt@insightbb.com — 2003-11-06T01:01:10+00:00 URL: https://externals.io/message/5169#5277 · In reply to: #5191 I noticed that echo $object statements in PHP 5 display object ids that are kept by the engine, so this data is already in the string form and it is data that exists. As for as a use for this feature, one can't easily say there is not a use; there have been times when I wished to have this feature --though I usually found some other way to do it, but this idea is intuitive. > Andi Gutmans > I don't think it's a good idea because it would break lots of other > things such as foreach(). keys have to be integers or strings. > Yes, nice and generally it's nice to have a language that it's > possible to use > anything as index but what use do you see for it ? > Hash with objects as indexes ..... will hold additional data for > objects? > So why not store the data inside the object itself ?