Моя цель:
Чтобы отсортировать список пользователей json по кредитам.
Мой вопрос:
Кредиты сортируются, но в обратном порядке они должны быть.
Мои результаты:
Position: 1 Username: abc Credits: 12 Position: 2 Username: bcd Credits: 123 Position: 3 Username: cde Credits: 1245 Что мне нужно:
Position: 1 Username: abc Credits: 1234 Position: 2 Username: bcd Credits: 123 Position: 3 Username: cde Credits: 12
Мой вопрос:
Как я могу прибегнуть к именам, которые будут в надлежащем порядке отсортированы по кредитам?
Мой PHP-код:
<?php $json = '{"id":1,"jsonrpc":"2.0","total":50,"result":[{"id":1,"username":"Ashley","credits":684921},{"id":2,"username":"Caroline","credits":113045},{"id":3,"username":"Alexandra","credits":669133},{"id":4,"username":"Katelyn","credits":735955},{"id":5,"username":"Ashley","credits":202478},{"id":6,"username":"Anna","credits":854266},{"id":7,"username":"Lily","credits":406425},{"id":8,"username":"Samantha","credits":430603},{"id":9,"username":"Caroline","credits":380785},{"id":10,"username":"Paige","credits":961596},{"id":11,"username":"Bailey","credits":67660},{"id":12,"username":"Kimberly","credits":610751},{"id":13,"username":"Maya","credits":446787},{"id":14,"username":"Maria","credits":818538},{"id":15,"username":"Ella","credits":789682},{"id":16,"username":"Olivia","credits":906604},{"id":17,"username":"Arianna","credits":177500},{"id":18,"username":"Maya","credits":592490},{"id":19,"username":"Aubrey","credits":58834},{"id":20,"username":"Sophie","credits":324357},{"id":21,"username":"Julia","credits":288688},{"id":22,"username":"Rachel","credits":932145},{"id":23,"username":"Arianna","credits":848696},{"id":24,"username":"Valeria","credits":272258},{"id":25,"username":"Autumn","credits":301136},{"id":26,"username":"Audrey","credits":317305},{"id":27,"username":"Chloe","credits":975642},{"id":28,"username":"Payton","credits":510533},{"id":29,"username":"Morgan","credits":927493},{"id":30,"username":"Mya","credits":166566},{"id":31,"username":"Lauren","credits":840207},{"id":32,"username":"Trinity","credits":255691},{"id":33,"username":"Jocelyn","credits":272653},{"id":34,"username":"Madeline","credits":58344},{"id":35,"username":"Valeria","credits":972228},{"id":36,"username":"Chloe","credits":919646},{"id":37,"username":"Jessica","credits":390647},{"id":38,"username":"Claire","credits":670709},{"id":39,"username":"Savannah","credits":47721},{"id":40,"username":"Zoe","credits":214133},{"id":41,"username":"Taylor","credits":991001},{"id":42,"username":"Gabrielle","credits":295506},{"id":43,"username":"Katherine","credits":295472},{"id":44,"username":"Vanessa","credits":600895},{"id":45,"username":"Olivia","credits":337541},{"id":46,"username":"Mackenzie","credits":32221},{"id":47,"username":"Bella","credits":461298},{"id":48,"username":"Maria","credits":318094},{"id":49,"username":"Lillian","credits":632622},{"id":50,"username":"Kayla","credits":17062}]}'; $decoded = json_decode($json); $users = $decoded->result; function my_sort($a, $b) { if ($a-credits > $b->credits) { return -1; } else if ($a->credits < $b->credits) { return 1; } else { return 0; } } rsort($users, 'my_sort'); $position = 0; foreach($users as $user){ $position = $position + 1; $username = $user->username; $credits = $user->credits; //do something with it: echo "Postion: $position<br/>\n Username: $username<br/>\n Credits:$credits <br/>\n <br/>\n"; if ($position == 3) { break; } } ?>
function my_sort($a, $b) { if ($a->credits > $b->credits) { return -1; } else if ($a->credits < $b->credits) { return 1; } else { return 0; } } usort($users, 'my_sort');
Вы должны использовать usort вместо rsort .
Обратите внимание, что с помощью php7 вы можете сделать оператор космического корабля:
function mySort($a, $b) { return $b->credits <=> $a->credits; } usort($users, 'mySort');