Trying to get the difference between 2 dates in days using PHP

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I am trying to get the age of a record by calculating the difference between two dates in the record. All efforts to date have failed. I am new at this so any help or advice would be greatly appreciated.

I am just starting in PHP so please bear with me. I have tried to do thus myself for 2 weeks but have failed to date. I am doing a report that will give me the age of the record by trying to subtract the created date from the closed date. One of the many codes I have is as follows:

$sql = 'SELECT * FROM table WHERE status="Closed" ';
                       foreach ($pdo->query($sql) as $row) {
                                echo '<tr>';
                                echo '<td>'. $row['id'] . '</td>';
                                echo '<td>'. $row['status'] . '</td>';
                                echo '<td>' (date_diff(. $row['created'] ,  $row['now'] .))'</td>';                              
                                echo '</tr>';
                       }
                       Database::disconnect();
                      ?>

The date_diff is not working and although I have tried numerous variations I just cannot seem to get it to work. Any help or suggestions where I might find the correct solution would be greatly appreciated.

What I have tried:

Everything I know form searching the Internet. I have attempted many solutions but have not yet succeeded

Posted 24-May-18 4:26am

Member 13842964

Updated 14-Jun-18 22:26pm

v2

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Member 13842964 25-May-18 2:39am

Thank you for that very quick reply, it is very much appreciated. I will try it shortly and give feedback on the result.

Member 13842964 25-May-18 3:47am

I now get this error:

Warning: date_diff() expects parameter 1 to be DateTime, string given

I have tried some suggested solutions for the Internet but no luck so far

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Richard Deeming · Answer 1 · 2018-05-24T04:40:00

Quote:

echo '<td>' (date_diff(. $row['created'] ,  $row['created'] .))'</td>';

Firstly, the "."s are in the wrong place:

echo '<td>' . date_diff($row['created'], $row['created']) . '</td>';

Secondly, you're trying to take the difference between the created column and … the created column. That obviously won't produce a difference, since both values are the same.

If you want the difference between two columns, you need to specify which column you want to compare to.

echo '<td>' . date_diff($row['created'], $row['some-other-column-here']) . '</td>';