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2D array

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May 04.2005

I have a 2D array: $myarray[i][j]=x
I want to sort it by ‘i’. How do I do that?

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PHP

5 Comments(s) ↴

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@NogDogMay 04.2005 — I think the [url=http://www.php.net/ksort]ksort()[/url] function is what you're looking for. (Or krsort() for reverse sort.)
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@Louigi_VeronaauthorMay 04.2005 — You see - I am not even sure that it is a 2D array. It has one value but two indicies. ksort doesn't work. The reason that I'm using two indicies is because in my script I want to associate the value of the array with two database records. Second index can do that. But the sorting just doesn't work!
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@scragarMay 04.2005 — [code=php]$myarray = array(array(1,2,3), array(4,5,6), array(7,8,9));
$tmparray = array();
for($i = 0; $i < count($myarray); $i++){
$tmparray[$i] = implode(";", $myarray[$i]);
};
sort($tmparray[$i]);
for($i = 0; $i < count($myarray); $i++){
$myarray[$i] = explode(";", $tmparray[$i]);
};[/code]
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@Louigi_VeronaauthorMay 04.2005 — Thanks! ?
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@scragarMay 04.2005 — your welcome.
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