array_merge（）我如何添加一个数组名的“范围” [英] array_merge() How can I add a 'range' of an array name

问题描述

我有一个$ NR变量作为数组与我在previous函数创建的同名号，是这样的：

 是$ var ='_ sorteios'$ NR。
$$ VAR =阵列（$ sorteio_id）;
 

我有它在一段时间函数，因此创建像3阵列的名称：

$ sorteios_1，$ sorteios_2，$ sorteios_3

，我想给他们增加一个array_merge在里面，所以我必须使用$ NR写着同名的很多阵列是如何创建的。

  $ NR = 3;
 

我想，最后的结果看起来是这样的。

$结果= array_merge（$ sorteios_1，$ sorteios_2，$ sorteios_3）;

这就是全部的功能，如果你要检查它（这是因为我遇到的问题不完全）：

 函数check_sorteios（）{全球$分贝;$ n = $ _SESSION ['用户id'];$ QUERY1 =SELECT * FROM sorteios其中userid = $编号;
$ RESULT1 = $ DB-GT＆;查询（$ QUERY1）;
$数= $ result1-＆GT; rowCount时（）;如果（$计数== 0）{$ sorteios = 0;回声SEM sorteios;}其他{
$ NUMERO = 0;
$ sorteios = 0;
$ NR = 0;而（$ ROW1 = $ result1-＆GT;取（））{
如果（$ NUMERO == $计数）{返回0;}$ NUMERO ++;
$ sorteio_id = $ ROW1 ['身份证'];$ QUERY2 =SELECT * FROM WHERE PRODUCTOS ID = $ sorteio_id;
$结果2 = $ DB-GT＆;查询（$ QUERY2）;
而（$ ROW2 = $ result2-＆GT;取（））{$数据= $ ROW2 ['数据'];
$ TITULO = $ ROW2 ['TITULO'];如果（的strtotime（$数据）GT;时间（））{
如果（！使用isset（$$ sorteio_id））{
$$ sorteio_id = 1;
}$ NR ++;
是$ var ='_ sorteios'$ NR。
$$ VAR =阵列（$ sorteio_id）;
}
}
}
}$结果= array_merge（$ sorteios_1，$ sorteios_2，$ sorteios_3）;$ OCCURENCES = array_count_values​​（$结果）;
的print_r（$ OCCURENCES）;}
 

解决方案

有没有你不能递归合并的理由？

 如果（$ NR大于0）{
    $结果= $ sorteios_1;
    为（$ i = 2; $ I＆LT; = $ NR ++ $ I）{
        $结果= array_merge（$结果，$ {'sorteios _'$ I}）;
    }
}其他{
    //你可能想以不同的方式处理这种情况
    $结果=阵列（）;
}
 

I have a $nr variable that as the number of arrays with the same name that i created in a previous function, something like this:

$var = 'sorteios_'.$nr;
$$var = array($sorteio_id);

I have it in a While function so it was created something like 3 arrays with the names:

$sorteios_1 , $sorteios_2 , $sorteios_3

And i want to add them inside an array_merge, so i have to use the $nr that says how many arrays with the same name were created.

$nr = 3;

i want that the final result looks something like this.

$result = array_merge($sorteios_1, $sorteios_2, $sorteios_3);

That's the whole function if you want to check it (it's not complete because of the problem i'm having):

function check_sorteios(){

global $db;

$id = $_SESSION['userid'];

$query1 =  "SELECT * FROM sorteios WHERE userid = $id";
$result1 = $db->query($query1);
$count = $result1->rowCount();

if ($count == 0){ $sorteios = 0; echo "sem sorteios";}

else{
$numero = 0;
$sorteios = 0;
$nr = 0;

while($row1 = $result1->fetch()){
if ( $numero == $count ){ return 0;}

$numero++;
$sorteio_id = $row1['id'];

$query2 =  "SELECT * FROM productos WHERE id = $sorteio_id";
$result2 = $db->query($query2);
while($row2 = $result2->fetch()){

$data = $row2['data'];
$titulo = $row2['titulo'];

if (strtotime($data) > time()){
if(!isset($$sorteio_id)){
$$sorteio_id = 1;
}

$nr++;
$var = 'sorteios_'.$nr;
$$var = array($sorteio_id);
}
}
}
}

$result = array_merge($sorteios_1, $sorteios_2, $sorteios_3);

$occurences = array_count_values($result);
print_r($occurences);

}

解决方案

Is there a reason you can't recursively merge?

if ($nr > 0) {
    $result = $sorteios_1;
    for ($i = 2; $i <= $nr; ++$i) {
        $result = array_merge($result, ${'sorteios_'.$i});
    }
} else {
    // you might want to handle this case differently
    $result = array();
}

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