如何在单个数组内的while循环中合并数组？

Question

我有以下代码。

$w = array();
while ($rowData = mysql_fetch_assoc($resultData)) {  
                                                $w[] = $rowData ;
                                            } 
print_r($w) ;

$ w给我以下数组。

Array
(
    [0] => Array
        (
            [fname] => Sumit Manager
            [role_id] => 2
            [punch_in] => 2015-11-06 06:27:29
            [id] => 1042
            [punch_out] => 2015-11-06 06:28:38
            [working_hours] => 00:01:09
            [hourlyrate] => 20.0000
            [payable] => 0.38333332
            [time_status] => out_time
            [user_id] => 77
        )

    [1] => Array
        (
            [fname] => Sumit Manager
            [role_id] => 2
            [punch_in] => 2015-11-06 06:28:38
            [id] => 1044
            [punch_out] => 2015-11-06 06:29:15
            [working_hours] => 00:00:37
            [hourlyrate] => 20.0000
            [payable] => 0.20555554
            [time_status] => out_break
            [user_id] => 77
        )

)
Array
(
    [0] => Array
        (
            [fname] => John Server
            [role_id] => 3
            [punch_in] => 2015-11-06 06:28:17
            [id] => 1043
            [punch_out] => 2015-11-06 06:29:56
            [working_hours] => 00:01:39
            [hourlyrate] => 12.0000
            [payable] => 0.33000000
            [time_status] => out_time
            [user_id] => 78
        )

) 

我想要的是将循环内的上述数组合并为具有如下索引的单个数组。

Array
    (
        [0] => Array (array1 from loop),
        [1] => Array (array2 from loop)
    )

Answer 1

尝试这个：

$x = [];
for(){ // Your for loop here
    $w = array();
    while ($rowData = mysql_fetch_assoc($resultData)) {  
        $w[] = $rowData; // create a array for current Id rows
    } 
    $x = arrray_merge($x, $w); // Merge the array generated to the for lopping array.
}
print_r($x);

在这里，当for循环启动时，它将触发一个while循环，该循环将把while循环生成的所有行存储在$w数组中。 之后，它将被推送到外部循环数组$x 。

解决方案2

您可以简单地使用$x[] = $w; 而不是$x = arrray_merge($x, $w); 。

Answer 2

array_merge在这里将很有用。

$w = array();
while ($rowData = mysql_fetch_assoc($resultData)) {  
    $w = array_merge($w, $rowData) ;
} 

print_r($w) ;

$w = array(); 应该是外面for循环。