I don't know how to "sort" arrays - php

Question

I have this array :
array(2) {
[1]=>
array(4) {
["name"]=>
string(14) "Les Contenants"
["ordre"]=>
string(1) "3"
[9]=>
array(1) {
["name"]=>
string(20) "Corbeilles unitaires"
}
[10]=>
array(1) {
["name"]=>
string(6) "Mannes"
}
}
[6]=>
array(3) {
["name"]=>
string(7) "L'utile"
["ordre"]=>
string(1) "1"
[133]=>
array(3) {
["name"]=>
string(7) "Paniers"
[192]=>
array(1) {
["name"]=>
string(13) "à provisions"
}
[193]=>
array(2) {
["name"]=>
string(13) "anses mobiles"
[201]=>
array(1) {
["name"]=>
string(19) "non doublés tissus"
}
}
}
}
}
I need to sort this array on this key : array[$i]['ordre'] on an ascending order.
The results must be :
array(2) {
[6]=>
array(3) {
["name"]=>
string(7) "L'utile"
["ordre"]=>
string(1) "1"
[133]=>
array(3) {
["name"]=>
string(7) "Paniers"
[192]=>
array(1) {
["name"]=>
string(13) "à provisions"
}
[193]=>
array(2) {
["name"]=>
string(13) "anses mobiles"
[201]=>
array(1) {
["name"]=>
string(19) "non doublés tissus"
}
}
}
}
[1]=>
array(4) {
["name"]=>
string(14) "Les Contenants"
["ordre"]=>
string(1) "3"
[9]=>
array(1) {
["name"]=>
string(20) "Corbeilles unitaires"
}
[10]=>
array(1) {
["name"]=>
string(6) "Mannes"
}
}
}
Have you an idea to do it ?

Answer 1

usort($array,function($a,$b) {return $a['ordre']-$b['ordre'];});
Or, if your version of PHP doesn't support lambda-functions:
usort($array,create_function('$a,$b','return $a["ordre"]-$b["ordre"];'));