[SOLVED] sorting a 2 dimensional array

[vampke]

hi guys,

 

I'm using this simple polling script I found and adapted somewhere out there.

The thing works just fine, but unfortunately it does not sort the results, which makes it rather useless for my needs.

Could anyone help me with this?

This is the function it uses for reading the results from a simple txt file:

 

function readData(){

global $answers;

$rawdata = file('polldata.txt');

$numberOfAnswers = sizeof($rawdata)-1;
$count = 0;
for ($i=0; $i <= $numberOfAnswers; $i++){
	$answerData = explode(':',$rawdata[$i]);
	if (strlen(trim($answerData[0]))>0){
		$answers[$count]['text']  = $answerData[0];
		$answers[$count]['count'] = $answerData[1];
		++$count;
	}
}
}

 

so what I want to do is sort it on $answerData[1]

 

I tried

asort($answers);
foreach($answersas $key => $value)
  echo $key." ".$value." <br />"; 

 

but that returns

0 Array

1 Array

2 Array

...

 

anyone?

[.josh]

can you post results of

 

echo "<pre>";
print_r($answers);
echo "</pre>";

[Barand]

function answersort($a, $b)
{
       return $a['count'] - $b['count'];         //  (swap b and a for DESC sort)
}

usort ($answers, 'answersort');

[vampke]

Thank you Barand, this works