How to check string on date in laravel?

@kadin 

To check if a string is a valid date in Laravel, you can use the Carbon class that comes with Laravel. Here is an example code that demonstrates how to check if a string is a valid date:

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use CarbonCarbon;

$dateString = '2022-12-31'; // String to check

if (Carbon::hasFormat($dateString, 'Y-m-d')) {
    // String is a valid date
    $date = Carbon::createFromFormat('Y-m-d', $dateString);
    echo "Valid date: " . $date->format('Y-m-d');
} else {
    // String is not a valid date
    echo "Invalid date";
}

In this code snippet, we are using the hasFormat method of the Carbon class to check if the string has a valid format (Y-m-d in this case). If it is a valid date, we can then create a Carbon instance from the string using the createFromFormat method and format it as desired.

Alternatively, you can also use the validateDate method of the IlluminateSupportFacadesDate class in Laravel:

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if(IlluminateSupportFacadesDate::validate($dateString)) {
    // String is a valid date
    echo "Valid date: " . $dateString;
} else {
    // String is not a valid date
    echo "Invalid date";
}

Both of these methods can be used to check if a string is a valid date in Laravel.