display nothing after sort array in php

Question

I want to sort in ascending order field available_price in an array, how can I sort. Following are code

Array
(
    [available_price] => 770
    [category] => Fashion design & theory
    [mrp] => 770
    [source] => RediffBooks
    [title] => Shoes
    [url] => http://books.rediff.com/book/five-point-someone/9781851775378
)
Array
(
    [available_price] => 797
    [mrp] => 938
    [source] => URead-IN
    [title] => Shoes
    [url] => http://www.uread.com/search-books/9781851775378
)

... so on...

php offers convenient sorting functions. Did you take a look at those? — arkascha, Jul 18 '15 at 08:21

Cyclonecode · Answer 1 · 2015-07-18T08:35:40.973

You can use usort() to sort your array based on available_price:

$array = array(
   array(
     available_price => 770,
     category => "Fashion design & theory",
     mrp => 770,
     source => "RediffBooks",
     title => "Shoes",
     url => "http://books.rediff.com/book/five-point-someone/9781851775378"
   ),
   array(
     available_price => 797,
     mrp => 938,
     source => "URead-IN",
     title => "Shoes",
     url => "http://www.uread.com/search-books/9781851775378"
   ),
);

// sort the items in the array in ascending order based on available_price
usort($array, function($a, $b) {
   return $a['available_price'] > $b['available_price'];
});

`return $a['available_price'] < $b['available_price'];` should be `return $a['available_price'] - $b['available_price'];` — viral, Jul 18 '15 at 08:32

score -2 · Answer 2 · answered Jul 18 '15 at 08:22

-2

You should put all your arrays into one array and then loop then with bubble sort method OR use sort function with your defined compare function.

answered Jul 18 '15 at 08:22

Daniel

350
4
12

OP should in fact be using the "BakeSale" method of Array organisation, following the W3C official recommendations that array order is defined by flour and sugar concentrate in equal volumes. – Martin Jul 18 '15 at 08:26
Thank you so much for your reply, but still sorting not working. Following are my code. foreach($data2 as $data3){ print_r($data3['available_price']); usort($array, function($a, $b) { return $a['available_price'] > $b['available_price']; }); } but nothing result is displaying. where i am wrong ? – amit sharma Jul 20 '15 at 09:57

display nothing after sort array in php

2 Answers2