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name

A PHP Error was encountered

Severity: Notice

Message: Undefined index: userid

Filename: views/question.php

Line Number: 191

Backtrace:

File: /home/prodcxja/public_html/questions/application/views/question.php
Line: 191
Function: _error_handler

File: /home/prodcxja/public_html/questions/application/controllers/Questions.php
Line: 433
Function: view

File: /home/prodcxja/public_html/questions/index.php
Line: 315
Function: require_once

name Punditsdkoslkdosdkoskdo

Laravel blade “old input or default variable”?

I want to show the old input in input value. If there isn't old input, than show other variable:

value="{{ old('salary_' . $employee->id) or 'Default' }}"

But when there is no old input, it gives me 1 instead of the default value!

I think the problem has something to do with the concatenation, but I don't know how to fix it!?

or is a comparison operator in PHP, so your code is evaluating to true, or 1. What you want is a ternary if statement.

As mentioned, or can be used in blade as shorthand for a ternary if statement.

But you can (and should) just pass the default value as the second argument to the function, like so:

value="{{ old('salary_' . $employee->id, 'Default') }}"
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    • Now here's the fun thing; using {{ $value or $default }} is a short-hand way of doing a ternary statement in Blade (Reference). Therefore, I'm not certain that this is right. It is, however, clearer!
    • @ChrisForrence you are correct! you learn something every day... the better way to accomplish this is by passing the default value as the second argument.
    • This doesn't solve the problem. When the old input is empty, it gives nothing ... the second variable is not echoed.
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    • Thanks! This was exactly what I was looking for. I sure wish the Laravel Docs had more tutorials, but I guess that's the reason for the Laracasts.

As described in the Laravel doc: "If you are displaying old input within a Blade template, it is more convenient to use the old helper:". So if you need add/edit data form (when you need to use edit form for add and edit in edit mode you need to use loaded data from model (database)) to show values from the model (through controller) you can use following:

name="some_value" value="{{ $some_value or old('some_value', $the_value) }}"

where is "some_value_from_model" variable name in view array. In this case it should be at first $some_value will be used to set in the "value" and, if no, it will try to use old (value from request from name "some_value") and if not old then '' should be used.

Thanks WoodyDRN for comment.

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    • But if you do it this way $some_value or old('some_value') - then if the user enters anything in the input fields, and submits, and there was an error, then it would default back to $some_value and deleting whatever they wrote. old('some_value', $some_value) would fix that.

You can use the code (for PHP 7):

{{ old('field_name') ?? $model->field_name ?? 'default' }}

For checkbox checked attribute use the code (if default value is false):

{{ (old() ? old('field_name', false) : $model->field_name ?? false) ? 'checked' : '' }}

Construction {{ $something or 'default'}} works only for variables

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