[英]Combine array with same element value and keep them all together, comma separated
[英]Combine array with same element value and keep them all together
我有這個數組:
[0] => Array
(
[userid] => 208
[username] => sara
[email] => sara@sara.com
)
[1] => Array
(
[userid] => 4
[username] => jack
[email] => jack@jack.com
)
[2] => Array
(
[userid] => 303
[username] => michael
[email] => michael@michael.com
)
[3] => Array
(
[userid] => 208
[username] => joe
[email] => joe@joe.com
)
[4] => Array
(
[userid] => 208
[username] => david
[email] => david@david.com
)
我想要這個結果:
[0] => Array
(
[userid] => 208
[username1] => sara
[username2] => joe
[username3] => david
[email1] => sara@sara.com
[email2] => joe@joe.com
[email3] => david@david.com
)
[1] => Array
(
[userid] => 4
[username1] => jack
[email1] => jack@jack.com
)
[2] => Array
(
[userid] => 303
[username1] => michael
[email1] => michael@michael.com
)
我正在嘗試使用幾個foreach加上$ n ++的array_combine,array_merge甚至array_unique; 循環沒有成功。 更精確地我成功了但改變了陣列的整個結構。
你可以這樣做:
/* $myArray is the array you are trying to change */
$result = array(); //Your minimized array
foreach($myArray as $value){
$userid = $value['userid'];
if(isset($result[$userid]))
$index = ((count($result[$userid]) - 1) / 2) + 1;
else
$index = 1;
$result[$userid]['userid'] = $userid;
$result[$userid]['username' . $index] = $value['username'];
$result[$userid]['email' . $index] = $value['email'];
}
$result = array_values($result);
我必須循環通過數組來構建所需的結構:
$result = array();
foreach($data as $item) {
$result[$item['userid']]['userid'] = $item['userid'];
$i = 1;
while (true) {
if (!isset($result[$item['userid']]['username' . $i])) {
$result[$item['userid']]['username' . $i] = $item['username'];
$result[$item['userid']]['email' . $i] = $item['email'];
break;
}
$i++;
}
}
var_dump($result);
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