php - How to set a value for the input type 'datetime-local'?

Question

I tried this:

<input type="datetime-local"  value="<?php echo $row['Time']; ?>" class="date" name="start" REQUIRED>

How can I set the value of this input field with the data from the database?
It doesn't work!!
I need to make it possible to edit too.
Or should I use another type of input?
$row['Time'] is from the database!

Answer 1

I don't know exacly what is in $row['Time'] but it should be as follows:

Definition

A valid date-time as defined in RFC 3339 with these additional qualifications:

• the literal letters T and Z in the date/time syntax must always be uppercase
• the date-fullyear production is instead defined as four or more digits representing a number greater than 0

Examples

• 1990-12-31T23:59:60Z
• 1996-12-19T16:39:57-08:00

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Solution

To create RFC 3339 format in PHP you can use:

echo date('Y-m-dTH:i:sP', $row['Time']);

or in another way:

echo date("c", strtotime($row['Time']));  

or if you prefer objective style:

echo (new DateTime($row['Time']))->format('c');

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In your code

So in your code it would look as follows:

<input type="datetime-local"  value="<?php echo date('Y-m-dTH:i:sP', $row['Time']); ?>" class="date" name="start" REQUIRED>

or

<input type="datetime-local"  value="<?php echo date("c", strtotime($row['Time'])); ?>" class="date" name="start" REQUIRED>

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Manual

• More informations can be found here

• PHP date Manual

• PHP DateTime Manual