Suppose I have an array that mimics a database table. Each array element represents a row, and within each row is another array that contains the field names and values.
Array
(
[0] => Array
(
[name] => 'Sony TV'
[price] => 600.00
)
[1] => Array
(
[name] => 'LG TV'
[price] => 350.00
)
[2] => Array
(
[name] => 'Samsung TV'
[price] => 425.00
)
}
What I want to do is sort the rows (outer array elements) by price. Below is an example of what I want to achieve:
Array
(
[0] => Array
(
[name] => 'LG TV'
[price] => 350.00
)
[1] => Array
(
[name] => 'Samsung TV'
[price] => 425.00
)
[2] => Array
(
[name] => 'Sony TV'
[price] => 600.00
)
}
As you can see, I don't need to preserve the keys of the outer array.
You need to use usort, a function that sorts arrays via a user defined function. Something like:
function cmp($a, $b)
{
if ($a["price"] == $b["price"]) {
return 0;
}
return ($a["price"] < $b["price"]) ? -1 : 1;
}
usort($yourArray,"cmp")