php Laravel 更改输入值
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Laravel change input value
提问by user1995781
In laravel, we can get the input value via Input::get('inputname'). I try to change the value by doing this Input::get('inputname') = "new value";. But then, I get the error message saying Can't use function return value in write context.
在 laravel 中，我们可以通过Input::get('inputname'). 我尝试通过这样做来更改值Input::get('inputname') = "new value";。但是，我收到错误消息说Can't use function return value in write context.
Is it possible for us change the input value so that when later calling on Input::get('inputname')will get the new amended value?
我们是否可以更改输入值，以便稍后调用时Input::get('inputname')将获得新的修改值？
Thanks.
谢谢。
回答by Brad
You can use Input::merge()to replace single items.
您可以Input::merge()用来替换单个项目。
Input::merge(['inputname' => 'new value']);
Or use Input::replace()to replace the entire input array.
或者Input::replace()用来替换整个输入数组。
Input::replace(['inputname' => 'new value']);
Here's a link to the documentation
回答by Sudhir Bastakoti
If you mean you want to overwrite input data, you can try doing:
如果您的意思是要覆盖输入数据，可以尝试执行以下操作：
Input::merge(array('somedata' => 'SomeNewData'));
回答by Arman H
If you're looking to do this in Laravel 5, you can use the merge()method from the Requestclass:
如果你想在 Laravel 5 中做到这一点，你可以使用类中的merge()方法Request：
class SomeController extends Controller
{
public function someAction( Request $request ) {
// Split a bunch of email addresses
// submitted from a textarea form input
// into an array, and replace the input email
// with this array, instead of the original string.
if ( !empty( $request->input( 'emails' ) ) ) {
$emails = $request->input( 'emails' );
$emails = preg_replace( '/\s+/m', ',', $emails );
$emails = explode( ',', $emails );
// THIS IS KEY!
// Replacing the old input string with
// with an array of emails.
$request->merge( array( 'emails' => $emails ) );
}
// Some default validation rules.
$rules = array();
// Create validator object.
$validator = Validator::make( $request->all(), $rules );
// Validation rules for each email in the array.
$validator->each( 'emails', ['required', 'email', 'min: 6', 'max: 254'] );
if ( $validator->fails() ) {
return back()->withErrors($validator)->withInput();
} else {
// Input validated successfully, proceed further.
}
}
}
回答by Raham
Try this,it will help you.
试试这个，它会帮助你。
$request->merge(array('someIndex' => "yourValueHere"));
回答by anayarojo
I also found this problem, I can solve it with the following code:
我也发现了这个问题，可以用下面的代码解决：
public function(Request $request)
{
$request['inputname'] = 'newValue';
}
Regards
问候
