I have the following arrays:
array (size=3)
0 =>
array (size=3)
'id' => int 18
'class' => string 'VIP' (length=3)
'fee' => float 20
1 =>
array (size=3)
'id' => int 19
'class' => string 'VVIP' (length=4)
'fee' => float 50
2 =>
array (size=3)
'id' => int 20
'class' => string 'STANDARD' (length=8)
'fee' => float 5
array (size=3)
0 =>
array (size=3)
'id' => int 19
'class' => string 'VVIP' (length=4)
'fee' => int 50
1 =>
array (size=3)
'id' => int 18
'class' => string 'VIP' (length=3)
'fee' => int 20
2 =>
array (size=3)
'id' => int 20
'class' => string 'STANDARD' (length=8)
'fee' => int 5
Now i am trying to sort them both using array_sort in ascending order using the id.:
$array_1 = array_sort($array_1, 'id', SORT_ASC);
$array_2 = array_sort($array_2, 'id', SORT_ASC);
However i keep getting the following error:
Argument 2 passed to array_sort() must be callable, string given
The second parameter of array_sort should be a closure, not a string:
$array_1 = array_sort( $array_1, function($value){
return $value['id'];
});
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