How to shuffle an array and then slice it - php

Question

I have a problem with shuffling and slicing array.
I have this code:
$maxDisplayItem = $this->_getFlexformConfig('max_item_to_display', 'product_setting');
$selectedProducts = array_slice($selectedProducts, 0, $maxDisplayItem);
foreach ($selectedProducts as $_id) {
shuffle($products);
foreach ($products as $_product) {
....
}
}
My code limiting the number of displayed item but didn't shuffle it at all.
When I change the order of actions:
shuffle($selectedProducts);
foreach ($selectedProducts as $_id) {
$maxDisplayItem = $this->_getFlexformConfig('max_item_to_display', 'product_setting');
$products = array_slice($products, 0, $maxDisplayItem);
foreach ($products as $_product) {
....
}
}
the code shuffling and slicing results but only first (e.g. 3 results) from whole array who has 50 items.
Could anyone help me with this?
here is the whole function:
function displayProductList()
{
// Store View
$store = $this->getStoreViewCode();
$selectedProducts = $this->getSelectedProducts();
$products = $this->_products->getProductsFromDb($selectedProducts, $store, $this->getProductsStoragePid());
// Load Template File
$templateHtml = $this->cObj->fileResource( $this->_getConfig('templateProductList') );
$productListHtml = $this->cObj->getSubpart($templateHtml, '###PRODUCT_LIST###');
$productHtml = $this->cObj->getSubpart($productListHtml, '###PRODUCT_ITEM###');
$subPartContent = ''; $item = 0; $items = count($products); $even = true; $line = '';
shuffle($selectedProducts);
foreach ($selectedProducts as $_id) {
$maxDisplayItem = $this->_getFlexformConfig('max_item_to_display', 'product_setting');
$products = array_slice($products, 0, $maxDisplayItem);
foreach ($products as $_product) {
if ($_id === $_product['product_id']) {
$markers = $this->_products->getProductMarkers($_product);
// Even/Odd CSS Class Determination
if ($even === true) {
$line = 'even';
$even = false;
} else {
$line = 'odd';
$even = true;
}
// Class Determination First/Last
if ($item == 0) {
$markers['###EVENODD###'] = $line . ' ' . 'first';
} else if ($item == $items-1) {
$markers['###EVENODD###'] = $line . ' ' . 'last';
} else {
$markers['###EVENODD###'] = $line;
}
// Check if the product has an image
$imageHtml = '<p>'.$this->pi_getLL('template_label_no_image_available').'</p>';
if ($markers['###DETAIL_IMAGE###'] != 'no_selection') {
$imageHtml = $this->cObj->getSubpart($productHtml, '###PRODUCT_IMAGE###');
}
$p = $this->cObj->substituteSubpart($productHtml, '###PRODUCT_IMAGE###', $imageHtml);
$subPartContent .= $this->cObj->substituteMarkerArray($p, $markers);
$item++;
}
}
}
return $this->cObj->substituteSubpart($productListHtml, '###PRODUCT_ITEM###', $subPartContent);
}

Answer 1

function displayProductList(){
// Store View
$store = $this->getStoreViewCode();
$selectedProducts = $this->getSelectedProducts();
$products = $this->_products->getProductsFromDb($selectedProducts, $store, $this->getProductsStoragePid());
// Load Template File
$templateHtml = $this->cObj->fileResource( $this->_getConfig('templateProductList') );
$productListHtml = $this->cObj->getSubpart($templateHtml, '###PRODUCT_LIST###');
$productHtml = $this->cObj->getSubpart($productListHtml, '###PRODUCT_ITEM###');
$subPartContent = ''; $item = 0; $items = count($products); $even = true; $line = '';
$maxDisplayItem = $this->_getFlexformConfig('max_item_to_display', 'product_setting');
$products = array_slice($products, 0, $maxDisplayItem);
shuffle($products);
foreach ($products as $_product) {
$markers = $this->_products->getProductMarkers($_product);
// Even/Odd CSS Class Determination
if ($even === true) {
$line = 'even';
$even = false;
} else {
$line = 'odd';
$even = true;
}
// Class Determination First/Last
if ($item == 0) {
$markers['###EVENODD###'] = $line . ' ' . 'first';
} else if ($item == $items-1) {
$markers['###EVENODD###'] = $line . ' ' . 'last';
} else {
$markers['###EVENODD###'] = $line;
}
// Check if the product has an image
$imageHtml = '<p>'.$this->pi_getLL('template_label_no_image_available').'</p>';
if ($markers['###DETAIL_IMAGE###'] != 'no_selection') {
$imageHtml = $this->cObj->getSubpart($productHtml, '###PRODUCT_IMAGE###');
}
$p = $this->cObj->substituteSubpart($productHtml, '###PRODUCT_IMAGE###', $imageHtml);
$subPartContent .= $this->cObj->substituteMarkerArray($p, $markers);
$item++;
}
return $this->cObj->substituteSubpart($productListHtml, '###PRODUCT_ITEM###', $subPartContent);
}