PHP Multidimensional Array problem - php

Question

iam trying to build a multidimensional array.
public function saveRateTemplateData($RateTemplateInfo)
{
$RateTemplateID = $RateTemplateInfo['id'];
$Zones = $RateTemplateInfo['premium_zones'];
//$ZoneZipCodeIDs[] = array();
for ($n = 1; $n <= $RateTemplateInfo['premium_zones']; $n++) {
$ZoneNum = 'zone' . $n;
$ZipCodeArray = explode(",",$_POST[$ZoneNum]);
$ZipCodeIDs=array();
foreach ($ZipCodeArray as $v) {
$v = intval(trim($v));
if (strlen($v) == 5) {
array_push($ZipCodeIDs, $this->addZipCode($v));
} else {
echo "it isnt 5";
}
}
}
}
so what iam trying to do is make an array of an array. so this is how its supposed to look
Array
(
[1] => Array
(
[0] => 34
[1] => 31
[2] => 23
)
[2] => Array
(
[0] => 18
[1] => 4
[2] => 35
[3] => 1
)
)
i have tried numerous ways it doesnt work
basically i want it in this format VarName[ZoneNumbers][ZipCodeID]
so i can loop through it later on. so i can print like this $VarName[$n] then a array of all zipcodeID will print for Zone Number 1 in this case it will print 34,31,23

Answer 1

public function saveRateTemplateData($RateTemplateInfo)
{
$RateTemplateID = $RateTemplateInfo['id'];
$zones = array(); // you weren't using this so I'll use it to hold the data
for ($n = 1; $n <= $RateTemplateInfo['premium_zones']; $n++) {
$ZoneNum = 'zone' . $n;
// create an array under the zone number for holding the IDs
$zones[$n] = array();
$ZipCodeArray = explode(",",$_POST[$ZoneNum]);
foreach ($ZipCodeArray as $v) {
$v = (int) trim($v);
if (strlen($v) == 5) {
$zones[$n][] = $this->addZipCode($v);
} else {
// use exceptions for exceptional circumstances
throw new RuntimeException(sprintf('Invalid zone ID "%s"', $v));
}
}
}
return $zones;
}