| Re: sort array of objects by muliple values [message #172021 is a reply to message #172019] |
Thu, 27 January 2011 20:44   |
Jerry Stuckle
Messages: 2598
Registered: September 2010
Karma:
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Senior Member |
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On 1/27/2011 2:59 PM, Max wrote:
> On Jan 27, 8:10 pm, Jerry Stuckle<jstuck...@attglobal.net> wrote:
>> On 1/27/2011 2:04 PM, Max wrote:
>>
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>>> 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
>
So, change the function to compare by birthday then name.
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
==================
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