Linking two PHP objects together - php

Question

I have these two objects:
$userinfo->pilotid;
$departures->total;
I'm trying to get $departures->total for specific pilotid in $userinfo = $userinfo->pilotid.
However, I'm not sure how can I link them so it echoes A for B. I have something like this but it does not display anything.
<?php echo $pilotid->$departures->total; ?>
Additionally, the first object is called like this:
$pilotid = Auth::$userinfo->pilotid;
This is the structure of the table where the objects are gathered from, using a query.

Answer 1

Stemming from the data provided by the OP, I am assuming, that $departures has a 1:n relationship with $userinfo, $userinfo being the 1 containing the pilotid.
So, in oder to find out how many departures that pilot had in total, there's two possible ways, one by using a subquery, which would mean something like this:
SELECT (SELECT COUNT(*) FROM `departures` WHERE `pilot_id` = ID) as total, * FROM pilots;
In this case, your total would be in the total column of your $userinfo query.
The second attempt makes use of actual PHP. In this scenario, you do the counting yourself.
First step: Getting the pilot information:
$userinfo = array();
while($row = fetch()) {
$row->total = 0;
$row->departures = array();
$userinfo[$row->pilotid] = $row;
}
These lines will give you the pilot data keyed to their IDs in an array.
Step two. Glueing the departures to the pilots.
while($row = fetch()) {
if(isset($userinfo[$row->pilotid])) {
$userinfo[$row->pilotid]->departures[] = $row;
++$userinfo[$row->pilotid]->total;
}
}
If this isn't what you're looking for, I will be needing more information from you, however like this you will be able to get the departures of the pilots either by making use of the total variable in the $userinfo object, or by simply calling count on the departures array.
Another variant, which keeps the actual departures and the pilots apart would look like this:
First step: Getting the pilot information:
$userinfo = array();
while($row = fetch()) {
$row->total = 0;
$userinfo[$row->pilotid] = $row;
}
These lines will give you the pilot data keyed to their IDs in an array.
Step two. Glueing the departures to the pilots.
$departures = array();
while($row = fetch()) {
if(isset($userinfo[$row->pilotid])) {
$departures[] = $row;
++$userinfo[$row->pilotid]->total;
}
}
I hope you will find these suggestions useful.
Edit:
After a few additional information from the OP, I suggest changing the query used to access the information in question.
This is the original code by the OP
$dep_query = "SELECT COUNT(pilotid) as total, depicao, pilotid FROM phpvms_pireps GROUP
BY depicao, pilotid ORDER BY total DESC LIMIT 5";
$fav_deps = DB::get_results($dep_query);
foreach($fav_deps as $departure)
{
$dep_airport = OperationsData::getAirportinfo($departure->depicao);
$pilotid = Auth::$userinfo->pilotid;
?>
<tr class="awards_table1">
<td width="10%"><?php echo $departure->depicao; ?></td>
<td width="10%"><img src="<?php echo Countries::getCountryImage($dep_airport->country); ?>" /></td>
<td width="60%"><?php echo $dep_airport->name; ?></td>
<td width="20%"><?php echo $pilotid->{$departures->total}; ?></td>
</tr>
<?php
}
?>
First thing we'll change is the query used to get the departures. Why fetch all the information, if we actually only want the one of the pilot in question?
$pilotid = $userinfo->pilotid; //As per Chat discussion
$dep_query = "SELECT COUNT(depicao) as total, depicao FROM phpvms_pireps WHERE pilotid = $pilotid GROUP BY depicao ORDER BY total DESC LIMIT 5";
This query will return the Top 5 of the departures from the different airports, which have been run by the pilot in question. As for the rest:
$fav_deps = DB::get_results($dep_query);
if(is_array($fav_deps)) { //For the general use
foreach($fav_deps as $departure) {
$dep_airport = OperationsData::getAirportinfo($departure->depicao); ?>
<tr class="awards_table1">
<td width="10%"><?php echo $departure->depicao; ?></td>
<td width="10%"><img src="<?php echo Countries::getCountryImage($dep_airport->country); ?>" /></td>
<td width="60%"><?php echo $dep_airport->name; ?></td>
<td width="20%"><?php echo $departure->total; ?></td> //Here is the actually changed Layout code
</tr>
<?php
}
} else echo "This pilot didn't have any departures yet.";
?>
With these alterations, your code should output the desired result. It is completely untested though. However it should give you the right idea.

Answer 2

I think what you need is this (note the curly brackets):
<?php echo $pilotid->{$departures->total}; ?>
Unless I'm misunderstanding the question...