foreach variable value is always the same - php

Question

I'm working with an existing foreach that is stepping through an array of values pulled from the database. I'd like to perform some logic based on each key/value pair and assign some values to variables to output as part of the foreach loop.
Specifically I need to output the availability as determined based on some values for each key/pair. My logic works, but the value of the last record is assigned to EVERY record that passes the conditional tests, even if the values are different.
How can I assign $value['availability'] correctly for each time through the loop?
Here's my code:
foreach ($prices as $value) {
if(!$this->_validateAttributeValue($attributeId, $value, $options)) {
continue;
}
$currentProduct->setConfigurablePrice(
$this->_preparePrice($value['pricing_value'], $value['is_percent'])
);
$currentProduct->setParentId(true);
Mage::dispatchEvent(
'catalog_product_type_configurable_price',
array('product' => $currentProduct)
);
$configurablePrice = $currentProduct->getConfigurablePrice();
if (isset($options[$attributeId][$value['value_index']])) {
$productsIndex = $options[$attributeId][$value['value_index']];
} else {
$productsIndex = array();
}
/* Check the quantity */
if($options['qty'][$value['label']] <= 0) {
if ($product->getResource()->getAttribute('item_status')->getFrontend()->getValue($product) == "Preorder") { // Preorder
$value['availability'] = "Pre-order";
}
elseif ($product->getResource()->getAttribute('item_status')->getFrontend()->getValue($product) != "Discontinued") { // Must be an active backorder item
if ($product->getResource()->getAttribute('new_availability')->getFrontend()->getValue($product) != "No") {
$value['availability'] = $product->getResource()->getAttribute('new_availability')->getFrontend()->getValue($product);
}
else {
$value['availability'] = "Temporarily out of stock";
}
}
}
$info['options'][] = array(
'id' => $value['value_index'],
'label' => ($options['qty'][$value['label']] <= 0) ? $value['label'] . ': '.$value['availability'].'' : $value['label'] . ": In stock",
'price' => $configurablePrice,
'oldPrice' => $this->_prepareOldPrice($value['pricing_value'], $value['is_percent']),
'products' => $productsIndex,
);
$optionPrices[] = $configurablePrice;
}

Answer 1

Try
foreach ($prices as $key=>$value){
//your code
}