带有数字循环的Laravel存储

Question

如何存储与提供的数字相同的数据？

示例

存储abc、10次

abc和10都来自表单请求

代码

nonuiqueAmount: 10
nonuiqueSerial: "abc"

 if(!empty($request->input('nonuiqueSerial'))) {
   foreach($request->input('nonuiqueAmount') as $item) { // this returns error
       $barcode = new Barcode;
       $barcode->serial_number = $request->input('nonuiqueSerial');
       $barcode->save();
   }
 }

错误：

为foreach((提供的参数无效

Answer 1

您应该使用for循环：

// nonuiqueAmount: 10
// nonuiqueSerial: "abc"

if (!empty($request->input('nonuiqueSerial'))) {
    for ($i = 0; $i < $request->input('nonuiqueAmount', 0); ++$i) { // I've added the zero as a default value to prevent unnecessary loops
        $barcode                = new Barcode;
        $barcode->serial_number = $request->input('nonuiqueSerial');
        $barcode->save();
    }
}

Answer 2

foreach循环仅适用于数组，用于循环遍历数组中的每个键/值对。w3schools文档

您的nonuiqueAmount就是int。我建议简单地坚持基本的循环

for ($x = 0; $x < $request->input('nonuiqueAmount'); $x++) { 
   $barcode = new Barcode;
   $barcode->serial_number = $request->input('nonuiqueSerial');
   $barcode->save();
}