CODEWITHSUNDEEP
phpvalidationdate
M9A
M9A

Reputation: 3276

PHP - String does not get identified as date

Hi I have a function that checks to see if a user input string is a valid date. The user has to input the date in the format 25-January-2018 and it checks to see if it can be converted to the format 25-01-2018. However when I test the function using a date where both the month and day are single digits then it returns false even though a valid date has been entered.

function validateDate($date){
    $d = DateTime::createFromFormat('d-F-Y', $date);
    return $d && $d->format('j-F-Y') === $date;
}

echo validateDate("03-February-2018"); //Returns false when it should be true

Upvotes: 0

Views: 47

Answers (3)

Cydonia7
Cydonia7

Reputation: 3826

You should replace the j-F-Y with d-F-Y.

j means 1 to 31 while d means 01 to 31 then your two formats are different for the given date.

The following code works:

function validateDate($date){
    $d = DateTime::createFromFormat('d-F-Y', $date);
    return $d && $d->format('d-F-Y') === $date;
}

var_dump(validateDate("03-February-2018"));

Upvotes: 3

Neo Morina
Neo Morina

Reputation: 401

Use strtotime() function better.

function validateDate($date){
   $timestamp = strtotime($date);
   $newDate = date('d-F-Y', $timestamp); 
   return ($timestamp && $newDate);
}

echo validateDate("03-February-2018");

Upvotes: 0

Luxfero
Luxfero

Reputation: 21

Your function could work :

   return $d && $d->format('d-F-Y') === $date;

but if your want to check if it's a valid date use this :

DateTime::createFromFormat('d-F-Y', "03-February") // returns false if not a valid date & Object if valid

Upvotes: 0

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