Question

我有一个这样的数组：

$arr = array ( array ( "id"   => 1,
                       "name" => "John",
                       "age" => 22 ),
               array ( "id"   => 2,
                       "name" => "Jack",
                       "age" => 30 ),
               array ( "id"   => 3,
                       "name" => "Peter",
                       "age" => 14 )
             );

现在我需要删除所有数组的项目名称并保留它们的值，如下所示：

$newarr = array ( array ( 1, "John",  22 ),
                  array ( 2, "Jack",  30 ),
                  array ( 3, "Peter", 14 )
             );

这样做可能吗？

注意到我这样做的意图是根据该数组创建一个.CSV文件。

以下是我的完整代码：

public function export(Request $request){

    header('Content-Type: application/excel');
    header('Content-Disposition: attachment; filename="export.csv"');

    $tb_name_alias = $request->tb_name;
    $convert_alias_to_table_name = array('person' => "App\\persons");
    $tb_name = $convert_alias_to_table_name[$tb_name_alias];
    $arr = $tb_name::all()->toArray();

    // here I need to remove all array's item names (I think)

    $fp = fopen('php://output', 'w');
    foreach ( $arr as $line ) {
        $val = explode(",", $line);
        fputcsv($fp, $val);
    }
    fclose($fp);
}

注意：这也适用：

public function export(Request $request){

    header('Content-Type: application/excel');
    header('Content-Disposition: attachment; filename="export.csv"');

    $arr = array(
        '1,John,22',
        '2,Jack,30',
        '3,Peter,14'
    );

    $fp = fopen('php://output', 'w');
    foreach ( $arr as $line ) {
        $val = explode(",", $line);
        fputcsv($fp, $val);
    }
    fclose($fp);
}

Answer 1

使用fputcsv http://php.net/manual/en/function.fputcsv.php

它不关心关键值

如果您真的想要删除密钥。循环并在数组的结果上调用array_values

Answer 2

使用array_map -

$newArr = array_map('array_values', $arr);

Answer 3

您可以使用array_values而不是删除这样的名称：

$fp = fopen('php://output', 'w');
foreach ( $arr as $item) {
    $values = array_values($item);
    fputcsv($fp, $values);
}
fclose($fp);

如何删除数组的项目名称？

3 个答案: