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Sorting a Two Dimensional Array

P: n/a
Hi. I have an array, thus:

Array (
[0] => Array ( [Freq] => 28 [Name] => Tomato )
[1] => Array ( [Freq] => 4 [Name] => Banana )
[2] => Array ( [Freq] => 54 [Name] => Orange )
[3] => Array ( [Freq] => 24 [Name] => Eggplant )
[4] => Array ( [Freq] => 5 [Name] => Courgette )
[5] => Array ( [Freq] => 4 [Name] => Apple )
)

I would like to be able to sort it either by the Frequency or the Name
of the fruit or vegetable.

I just can't seem to get it to work. I'm sorry - I realise that this is
probably really easy but my brain isn't working today and the examples
on php.net seem incomprehensible to me.

Many thanks, in anticipation

Steve

Jun 26 '06 #1
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8 Replies


P: n/a
St***********@gmail.com wrote:
I just can't seem to get it to work. I'm sorry - I realise that this
is probably really easy but my brain isn't working today and the
examples on php.net seem incomprehensible to me.


// $key = 'Freq';
$key = 'Name';

function callback($a, $b) {
global $key;
if ($a[$key] == $b[$key]) return 0;
return $a[$key] > $b[$key] ? 1 : -1;
}
uasort($array, 'callback');
JW
Jun 26 '06 #2

P: n/a

Janwillem Borleffs wrote:


// $key = 'Freq';
$key = 'Name';

function callback($a, $b) {
global $key;
if ($a[$key] == $b[$key]) return 0;
return $a[$key] > $b[$key] ? 1 : -1;
}
uasort($array, 'callback');


Brilliant - many thanks.

Steve

Jun 26 '06 #3

P: n/a
<comp.lang.php>
<>
<26 Jun 2006 14:50:17 -0700>
<11**********************@b68g2000cwa.googlegroups .com>
Brilliant - many thanks.


OP question answered .
Can anything like the following be used for 2 dimentional arrays ? .

$demo=[1,1]="blah";
$demo=[1,2]="blah";
--
www.emailuser.co.uk/?name=KRUSTOV
Jun 27 '06 #4

P: n/a
<comp.lang.php>
<Krustov>
<Tue, 27 Jun 2006 12:40:46 +0100>
<MP************************@news.newsreader.com>
Can anything like the following be used for 2 dimentional arrays ? .

$demo=[1,1]="blah";
$demo=[1,2]="blah";


No answers provided for this question - so assume there isnt .
--
www.emailuser.co.uk/?name=KRUSTOV
Jun 27 '06 #5

P: n/a
Krustov wrote:
<comp.lang.php>
<Krustov>
<Tue, 27 Jun 2006 12:40:46 +0100>
<MP************************@news.newsreader.com>
Can anything like the following be used for 2 dimentional arrays ? .

$demo=[1,1]="blah";
$demo=[1,2]="blah";

No answers provided for this question - so assume there isnt .


First of all, you need to give people a chance to answer - at least 24 hours.
We're all volunteers and some only check in once a day.

To answer your question, no.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
==================
Jun 28 '06 #6

P: n/a

$xx=array(array(1,2),array(3,4));
echo $xx[0][0]; // prints 1
echo $xx[1][1]; // prints 4
Krustov wrote:
<comp.lang.php>
<Krustov>
<Tue, 27 Jun 2006 12:40:46 +0100>
<MP************************@news.newsreader.com>
Can anything like the following be used for 2 dimentional arrays ? .

$demo=[1,1]="blah";
$demo=[1,2]="blah";


No answers provided for this question - so assume there isnt .
--
www.emailuser.co.uk/?name=KRUSTOV


Jun 28 '06 #7

P: n/a

ImOk wrote:
$xx=array(array(1,2),array(3,4));
echo $xx[0][0]; // prints 1
echo $xx[1][1]; // prints 4


Which also follows you can do this:

$xx[0][0]="X";
echo $xx[0][0];

Jun 28 '06 #8

P: n/a
<comp.lang.php>
<ImOk>
<27 Jun 2006 18:31:17 -0700>
<11**********************@x69g2000cwx.googlegroups .com>
$xx[0][0]="X";
echo $xx[0][0];


Yeah that looks fine - thanks .
--
www.emailuser.co.uk/?name=KRUSTOV
Jun 28 '06 #9

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