I have an array of arrays formatted like the following:
$list = [ ["fdsa","1","fdsa"],["sadf","0","asdf"],["frfrf","0","sadfdsf"] ]
How can I alphabetize $list based on the first value of every inner array?
Thanks!
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1You will find what you need here... php.net/manual/en/function.array-multisort.phpGavin– Gavin2013-10-15 21:35:02 +00:00Commented Oct 15, 2013 at 21:35
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2imgur.com/GXkQloTnshah– nshah2013-10-15 21:38:54 +00:00Commented Oct 15, 2013 at 21:38
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5 Answers
I had this function for another answer but it can be modded to do the same:
// This sorts simply by alphabetic order
function reindex( $a, $b )
{
// Here we grab the values of the 'code' keys from within the array.
$val1 = $a[0];
$val2 = $b[0];
// Compare string alphabetically
if( $val1 > $val2 ) {
return 1;
} elseif( $val1 < $val2 ) {
return -1;
} else {
return 0;
}
}
// Call it like this:
usort( $array, 'reindex' );
print_r( $array );
Original: Sorting multidimensional array based on the order of plain array
2 Comments
nshah
Wrikken
Or:
function reindex($a,$b){ return strcmp($a[0],$b[0]);} (which does the same thing).
Comments
function order($a, $b){
if ($a[0] == $b[0]) {
return 0;
}
return ($a[0] < $b[0]) ? -1 : 1;
}
$list = [ ["fdsa","1","fdsa"],["sadf","0","asdf"],["frfrf","0","sadfdsf"] ];
usort($list, "order");
var_dump($list); die;
Comments
asort($list);
This will simply do the job for you.
Comments
You need to sort using your own comparison function and use it along with usort().
