Traverse non-numerical indexes of an array - php

Question

Think I'm missing a basic concept. I want to generate html by traversing through a few different arrays of data. They don't use numbers as indexes so numerical looping doesn't work. I cant figure out how to use a foreach() here either. How can I traverse $price and $description when the indexes aren't numbers?
Sample:
$traverser= 0;
while($traverser < $number_of_records)
{
print $traverser . " - " . $price[$traverser] . "<br />";
print $description[$traverser];
$traverser++;
}
Partial Sample of the Array Structure:
object(phpQueryObject)#2799 (13) { ["documentID"]=> string(32) "1d62be942498df890cab4ccb78a007a2" ["document"]=> &object(DOMDocument)#3 (0) { } ["charset"]=> &string(5) "utf-8" ["documentWrapper"]=> &object(DOMDocumentWrapper)#2 (17) { ["document"]=> &object(DOMDocument)#3 (0) { } ["id"]=> string(32) "1d62be942498df890cab4ccb78a007a2" ["contentType"]=> string(9) "text/html" ["xpath"]=> &object(DOMXPath)#4 (0) { } ["uuid"]=> int(0) ["data"]=> array(0) { } ["dataNodes"]=> array(0) { } ["events"]=> array(0) { } ["eventsNodes"]=> array(0) { } ["eventsGlobal"]=> array(0) { } ["frames"]=> array(0) { } ["root"]=> &object(DOMElement)#5 (0) { } ["isDocumentFragment"]=> &bool(true) ["isXML"]=> bool(false) ["isXHTML"]=> bool(false) ["isHTML"]=> bool(true) ["charset"]=> &string(5) "utf-8" } ["xpath"]=> &object(DOMXPath)#4 (0) { } ["elements"]=> array(560) { [0]=> object(DOMElement)#2239 (0) { } [1]=> object(DOMElement)#2240 (0) { } [2]=> object(DOMElement)#2241 (0) { } [3]=> object(DOMElement)#2242 (0) { } [4]=> object(DOMElement)#2243 (0) { } [5]=> object(DOMElement)#2244 (0) { } [6]=> object(DOMElement)#2245 (0) { } [7]=> object(DOMElement)#2246 (0) { } [8]=> object(DOMElement)#2247 (0) { }

Answer 1

Since it looks like you need the array keys as well, since you're referencing multiple different arrays, you want the $a as $k => $v syntax for foreach:
foreach($description as $key => $desc)
{
print $key . " - " . $price[$key] . "<br />";
print $desc;
}

Answer 2

You can take your pic as to how you want to iterate them:
<?php
$ary = array( // demo array
'apple' => 'Apple',
'orange' => 'Orange',
'grape' => 'Grape'
);
// show the structure
var_dump($ary); echo "\r\n";
// use a foreach with the key and value
foreach ($ary as $key => $val)
printf("%s => %s\r\n", $key, $val);
echo "\r\n";
// just get the raw keys
$keys = array_keys($ary);
var_dump($keys); echo "\r\n";
output:
array(3) {
["apple"]=>
string(5) "Apple"
["orange"]=>
string(6) "Orange"
["grape"]=>
string(5) "Grape"
}
apple => Apple
orange => Orange
grape => Grape
array(3) {
[0]=>
string(5) "apple"
[1]=>
string(6) "orange"
[2]=>
string(5) "grape"
}
There's always array_map & array_walk.

Answer 3

I'm not sure I get the question, but it's really as simple as:
<?php
$array = array('foo', 'bar');
foreach ($array as $element) {
echo "{$element}\n";
}
This should output "foo" and "bar".