I'm trying to get hold of the largest value in an array, while still preserving the item labels. I know I can do this by running sort(), but if I do so I simply lose the labels - which makes it pointless for what I need. Here's the array:
array("a"=>1,"b"=>2,"c"=>4,"d"=>5);
Any ideas?
function cmp($a, $b)
{
$sizes = array(
"XXS" => 0,
"XS" => 1,
"S" => 2,
"M" => 3,
"L" => 4,
"XL" => 5,
"XXL" => 6
);
$asize = $sizes[$a];
$bsize = $sizes[$b];
if ($asize == $bsize) {
return 0;
}
return ($asize > $bsize) ? 1 : -1;
}
usort($your_array, "cmp");
Use multi-byte string functions. There is a function called strcoll which seems to suit your needs.
More info:
EDIT: added Peter's working code, below
setlocale(LC_COLLATE, 'sk_SK.utf8');
usort($fb_friends['data'], 'custom_sort');
function custom_sort($a, $b) {
return strcoll ($a['last_name'], $b['last_name']);
}
foreach ($fb_friends['data'] as $friend) {
echo '<br>';
echo $friend['name'];
}
Top level:
print_r($data);
// Output: Array ( [0] => Array ( [0] => Array ( [value] => 150109 [format] => [safe_value] => 150109 ) ) )
Outmost element:
print_r($data[0]);
// Output: Array ( [0] => Array ( [value] => 150109 [format] => [safe_value] => 150109 ) )
Next level:
print_r($data[0][0]);
// Output: Array ( [value] => 150109 [format] => [safe_value] => 150109 )
The final value
echo $data[0][0]['value'];
// Output: 150109
Accessing each layer of values this way makes it easier to figure out how to get to your desired value. After a while this becomes more obvious.
Use array_keys():
var_dump(array_keys($data));
Return all the keys or a subset of the keys of an array
Don't sort the array to get the largest value.
Get the max value:
Get the corresponding key: