displaying table field names dynamically with cake php - php

Question

I am trying to display a list of all entries in the table people. I have the list of entries generating correctly as a html table but I want to ad a row at the top of the table with the table field names. I could do this manually but figure there must be a way to do it dynamically in case I add or remove fields later on.
here is the controller function
public function peopleDisplay() {
$this->set('people', $this->people->find('all'));
}
Are the field names already in the array that generates? If so how do I reference them? If not how do I get them to be?
Here is the view so far
<table>
<tr>
***were I want the row of field names to go***
</tr>
<?php foreach($people as $people): ?>
<tr>
<td>
<?php echo $people['people']['id'] ?>
</td>
<td>
<?php echo $people['people']['firstName'] ?>
</td>
<td>
<?php echo $people['people']['secondName'] ?>
</td>
</tr>
<?php endforeach; ?>
</table>

Answer 1

The column names are the keys in your array. For instance, 'id', 'firstName', and 'secondName' are the column names.
Another way to approach would be to get the column names as a separate array in your controller and then output them in your view.
$people = $this->People->find('all');
$colNames = array_keys($this->People->getColumnTypes());
$this->set(compact('colNames', 'people'));
Then in your view:
foreach($colNames as $col){ //Output column names }
foreach($people as $person){ //Output people }