Laravel blade compare two date

Question

I would like to compare 2 dates. So I create a condition like this in my template blade:

@if(\Carbon\Carbon::parse($contrat->date_facturation)->format('d/m/Y') < $dateNow)
    <td class="danger">
        {{ \Carbon\Carbon::parse($contrat->date_facturation)->format('d/m/Y') }}
    </td>
@else
    <td>
        {{ \Carbon\Carbon::parse($contrat->date_facturation)->format('d/m/Y') }}
    </td>
@endif

My variable $dateNow has the same format on my value in $contract->date_facturation

Screenshot

It add a red background on the date 25/02/2018 while the date is not less than the variable $contract->date_facturation

Do you have any idea of ??the problem?

Thank you

Answer 1

The problem is that you are trying to compare two date strings. PHP don't know how to compare date strings.

Carbon::format() returns a string. You shoud convert your dates to a Carbon object (using parse) and use Carbon's comparison methods, as described on Carbon Docs (Comparison).

For your example, you should do:

// Note that for this work, $dateNow MUST be a carbon instance.
@if(\Carbon\Carbon::parse($contrat->date_facturation)->lt($dateNow))
    <td class="danger">
        {{ \Carbon\Carbon::parse($contrat->date_facturation)->format('d/m/Y') }}
    </td>
@else
    <td>
        {{ \Carbon\Carbon::parse($contrat->date_facturation)->format('d/m/Y') }}
    </td>
@endif

同样，您的代码看起来是重复的，并且假设这$dateNow是具有当前日期的变量，则可以使用Carbon::isPast()method，因此重写代码将变成：

<?php
    $date_facturation = \Carbon\Carbon::parse($contrat->date_facturation);
?>
@if ($date_facturation->isPast())
    <td class="danger">
@else
    <td>
@endif
        {{ $date_facturation->format('d/m/Y') }}
    </td>

由于您将日期解析一次而不是两次，因此这使您的代码重复性和速度降低。

另外，如果您希望代码更好，请使用Eloquent的Date Mutators，因此您无需每次在视图上都需要解析日期。