Question

$columns = array('mon','thu','wed','tue', 'fri', 'sat', 'sun');
$num_cols = count($columns);
echo "<table>";
echo "<tr>";
foreach($columns as $col)
{
   echo "<td>$col</td>";
   for($i=1;$i<20;$i++)
{
    echo "<tr>";
    $datetime = new DateTime();
    for($j=0;$j<$num_cols;$j++){
        $datetime->modify('+30 minutes');

        echo '<td>' . $datetime->format('H:i:s') . '</td>';
    }

    echo "</tr>";
 }
}
echo "</tr>";

echo "</table>";

How can i modify this for:

mon      |   thu     etc
10:10:10 | 10:10:10
10:40:10 | 10:40:10
11:10:10 | 11:10:10
etc

Now this bad working. I would like create simple calendar. This generated for me to many hours for one day.
Thanks for help!

Edit:
If this is simply i can use only one loop for – with hours – without $columns. but how can i make it?

i would like receive:

10:10:10 | 10:10:10 etc
10:40:10 | 10:40:10
11:10:10 | 11:10:10
etc

with $datetime->format(‘Y-m-d H:i:s’) 🙂 i dont know how i can show this is columns – from top to down, not from left to right

Answer 1

<?php

$columns = array('mon','thu','wed','tue', 'fri', 'sat', 'sun');
$num_cols = count($columns);
$col = 0;
$datetime = new DateTime();

echo "<table>"; // border=\"1\" for visible border

// Day header
echo "<tr>";
foreach($columns as $col) {
    echo "<td>$col</td>";
}
echo "</tr>";


// Times
for($i=0; $i<20; $i++) { // FIXME for more entries or other step width
    echo "<tr>";
    $datetime->modify('+30 minutes');

    for ($j=0; $j<$num_cols; $j++)
        echo '<td>' . $datetime->format('H:i:s') . '</td>';

    echo "</tr>";
}

echo "</table>";

?>