indymx indymx - 5 months ago 27
PHP Question

Looping Througn an Array

I have the following array named $entries:

array (
0 => array ( 'entry_id' => 8132, 'racer_id' => 1302, 'class_id' => 20, ),
1 => array ( 'entry_id' => 8239, 'racer_id' => 851, 'class_id' => 20, ),
2 => array ( 'entry_id' => 8240, 'racer_id' => 850, 'class_id' => 20, ),
3 => array ( 'entry_id' => 8241, 'racer_id' => 1222, 'class_id' => 20, ),
4 => array ( 'entry_id' => 8243, 'racer_id' => 1221, 'class_id' => 20, ),
5 => array ( 'entry_id' => 8250, 'racer_id' => 673, 'class_id' => 20, ),
6 => array ( 'entry_id' => 8255, 'racer_id' => 674, 'class_id' => 20, ),
7 => array ( 'entry_id' => 8258, 'racer_id' => 666, 'class_id' => 20, ),
8 => array ( 'entry_id' => 8266, 'racer_id' => 193, 'class_id' => 20, ),
)


and this code to loop thru that array.

foreach ($entries as $entry) {
for ($i = 1; $i <= $list[0]['heat_count']; ++$i) {
if ($entry['class_id'] == $class) {
$heats[$class] = [
'heat_nbr' => $i,
'entry_id' => $entry['entry_id'],
'racer_name' => $f->getRacerFullName($entry['racer_id'])
];
}
}
}


I am not getting the output I need. The variable $list[0]['heat_count'] comes from an earlier query that counts the amount of riders in the "heat".

What I need is to set the "heat_number" according to the "heat_count", so if there are 2 heats, I need to iterate thru the $entries array and take the 1st to heat 1 and the second to heat 2 and so on thru the loop. If the "heat_count" is 3, then 1st to 1, 2nd to 2, 3rd to 3, 4th to 1, 5th to 2 6th to 3.. and so on.

There can be any number of heats per class in an event from 1 to 50. So hard coding that is impossible without a million if statements.

Can anyone understand what I'm getting at here and push me in the right direction?

This is what I get from the above loop now:

array(2) { ["heat_nbr"]=> int(2) ["entry_id"]=> int(8132) } array(2) { ["heat_nbr"]=> int(2) ["entry_id"]=> int(8239) } array(2) { ["heat_nbr"]=> int(2) ["entry_id"]=> int(8240) } array(2) { ["heat_nbr"]=> int(2) ["entry_id"]=> int(8241) } array(2) { ["heat_nbr"]=> int(2) ["entry_id"]=> int(8243) } array(2) { ["heat_nbr"]=> int(2) ["entry_id"]=> int(8250) } array(2) { ["heat_nbr"]=> int(2) ["entry_id"]=> int(8255) } array(2) { ["heat_nbr"]=> int(2) ["entry_id"]=> int(8258) } array(2) { ["heat_nbr"]=> int(2) ["entry_id"]=> int(8266) }

Answer

You need to keep track of how many entrants you have assigned to the heats, so you can assign the next heat number.

Something like this should work:

$numberOfHeats = $list[0]['heat_count'];
$counter = 0;

foreach ($entries as $entry){
    if($entry['class_id'] == $class) {

        $counter++;
        $nextHeatNumberToAssign = ($counter % $numberOfHeats) + 1;

        $heats[$class] = [
            'heat_nbr'   => $nextHeatNumberToAssign,
            'entry_id'   => $entry['entry_id'],
            'racer_name' => $f->getRacerFullName($entry['racer_id'])
            ];
    }
}
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