[php] Warning: date_format() expects parameter 1 to be DateTime

I am using the following script to pull the calendar info out of the mysql database and display it on the page. I am trying to re format the date from the standard Mysql date format , but when retrieving it from the database am getting the following error :

Warning: date_format() expects parameter 1 to be DateTime, string given in C:\easyphp\www\twinfocus\managecalendar.php on line 24

Warning: date_format() expects parameter 1 to be DateTime, string given in C:\easyphp\www\twinfocus\managecalendar.php on line 24

Warning: date_format() expects parameter 1 to be DateTime, string given in C:\easyphp\www\twinfocus\managecalendar.php on line 24

Warning: date_format() expects parameter 1 to be DateTime, string given in C:\easyphp\www\twinfocus\managecalendar.php on line 24

The Database (as you can see the dates are stored correctly):

The script :

<?php
     $sql2 = <<<SQL
        SELECT *
        FROM `calendar`
    SQL;
    if(!$result2 = $db->query($sql2)){ die('There was an error running the query [' . $db->error . ']');}
    echo '<table class="admintable"> <thead>';
    echo '<tr><th>Client Names</th><th>Email</th><th>Tel</th><th>Wedding Date</th><th>Date Created</th><th>Start Time</th><th>End Time</th><th>Price</th><th>Location</th><th>Other Info</th><th>Edit</th><th>Delete</th></tr></thead>';
    while($row2 = $result2->fetch_assoc()){ 
    $weddingdate = $row2['weddingdate'];
    $formattedweddingdate = date_format($weddingdate, 'd-m-Y');
    echo '<tr><td>'.$row2['name'].'</td><td>'.$row2['email'].'</td><td>'.$row2['tel'].'</td><td style="min-width:70px;">'.$formattedweddingdate.'</td><td style="min-width:70px;">'.$row2['datecreated'].'</td><td>'.$row2['starttime'].'</td><td>'.$row2['endtime'].'</td><td>&pound;'.$row2['price'].'</td><td>'.$row2['location'].'</td><td style="min-width:400px;">'.$row2['otherinfo'].'</td><td><a href="managecalendar.php?&key='.$key.'&editwedding='.$row2['id'].'">Edit</a></td><td><a href="calenderdelete.php?&key='.$key.'&delwedding='.$row2['id'].'">Delete</a></td></tr>';}
    echo '</table>';

?>

This may help

$formattedweddingdate =date('d-m-Y',strtotime($weddingdate));

You need to pass DateTime object to this func. See manual: php

string date_format ( DateTime $object , string $format )

You can try using:

date_format (new DateTime($time), 'd-m-Y');

Or you can also use:

$date = date_create('2000-01-01');
echo date_format($date, 'Y-m-d H:i:s');

try this

$start_date = date_create($_POST['start_date']);
$start_date = date_format($start_date,"Y-m-d H:i:s");

Why don't you try it like this:

$Weddingdate = new DateTime($row2['weddingdate']);
$formattedweddingdate = date_format($Weddingdate, 'd-m-Y');

Or you can also just do it like :

$Weddingdate = new DateTime($row2['weddingdate']);
echo $Weddingdate->format('d-m-Y');

I've tried sean662's 3rd solution and worked with now() function stored in an INSERT sql an then it's value in the date_create() function. After that the variable is then passed through the date_format() function and you can have the date order that you like.