Question

I need to join two tables, i already have the code for the first table:

$query = "SELECT * FROM civicrm_event"; 

$result = mysql_query($query) or die(mysql_error());

while($row = mysql_fetch_array($result)){
$row = mysql_fetch_array($result) or die(mysql_error());
echo $row['title_en_US']. " - ". $row['id'];
echo "<br />";

I need to join it with another one called civicrm_participant, where i need to extract contact_id

The clause to select this tables is that:

civicrm_event.id = civicrm_participant.event_id

Then i need to echo [title_en_US] [id] [contact_id]
Help…

Answer 1

You should read joins in mysql

Do something like this:

$query = "SELECT ce.title_en_US, ce.id, cp.event_id FROM civicrm_event AS ce JOIN civicrm_participant AS cp ON ce.id=cp.event_id";