Re: sort array of objects by muliple values

From	"Peter H. Coffin" <hellsop@ninehells.com>
Newsgroups	comp.lang.php
Subject	Re: sort array of objects by muliple values
Date	2011-01-27 14:46 -0600
Organization	A noiseless patient Spider
Message-ID	<slrnik3mct.2mh.hellsop@nibelheim.ninehells.com> (permalink)
References	<b161047b-cf9d-4fb4-b8c0-9edcdf52a1b9@h16g2000yqh.googlegroups.com> <ihsfuu$eo6$1@news.eternal-september.org> <eb45b444-6ebe-4581-8b25-69f4c101e525@a4g2000yqo.googlegroups.com>

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On Thu, 27 Jan 2011 11:59:28 -0800 (PST), Max wrote:
> On Jan 27, 8:10?pm, Jerry Stuckle <jstuck...@attglobal.net> wrote:
>> On 1/27/2011 2:04 PM, Max wrote:
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> > Is there a simple way to sort $array below like SQL it does? I.e.
>> > ORDER BY birthday ASC, name ASC
>> > Output would be Kevin, Michael, Alice
>>
>> > Thanks!
>>
>> > <?php
>> > class User {
>> > ? ? ?private $firstname;
>> > ? ? ?private $surname;
>> > ? ? ?private $birthday;
>>
>> > ? ? ?function __construct($firstname, $surname, $birthday) {
>> > ? ? ? ? ?$this->firstname = $name;
>> > ? ? ? ? ?$this->surname = $surname;
>> > ? ? ? ? ?$this->birthday = $birthday;
>> > ? ? ?}
>> > ? ? ?function __get($n) {
>> > ? ? ? ? ?return $this->$n;
>> > ? ? ?}
>> > }
>>
>> > $array = array (
>> > ? ? ? ? ?new User('Alice', ? ? ? 'Smith', ?'1960-01-01'),
>> > ? ? ? ? ?new User('Michael', ? 'Jordan', ?'1950-01-01'),
>> > ? ? ? ? ?new User('Kevin', ? ? ?'Dilan', ? ?'1950-01-01'),
>> > ? ? ? ? ?);
>>
>> Use usort() with a static member function. ?See
>>
>> http://us2.php.net/manual/en/function.usort.php
>>
>> for an example.
>
> it sorts only by one field

If you sort a sorted array by another column, what do you think happens
to the records in identically-keyed records?

-- 
A: Because it messes up the order in which people normally read text.
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Re: sort array of objects by muliple values "Peter H. Coffin" <hellsop@ninehells.com> - 2011-01-27 14:46 -0600
  Re: sort array of objects by muliple values Denis McMahon <denis.m.f.mcmahon@googlemail.com> - 2011-01-27 21:31 +0000

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