[PHP]problem z Pętla foreach, jw Opcje

[miras]

Witam, mam pewną pętlę foreach, w której muszę zwiększać parametr $this->i o jeden.. próbuję już ponad godzinę na różne sposoby i nie idzie za nic.. proszę o pomoc, kod:

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$this->xtab = explode(",",$this->tab); 
			$this->i=0;
 
			foreach ($this->model_catalog_product->getProductOptions($this->xtab[$this->i]) as $option) { 
 
 
				if ($option['type'] == 'select' || $option['type'] == 'radio' || $option['type'] == 'checkbox' || $option['type'] == 'image') { 
					$option_value_data = array();
 
					foreach ($option['option_value'] as $option_value) {
						if (!$option_value['subtract'] || ($option_value['quantity'] > 0)) {
							if ((($this->config->get('config_customer_price') && $this->customer->isLogged()) || !$this->config->get('config_customer_price')) && (float)$option_value['price']) {
								$price = $this->currency->format($this->tax->calculate($option_value['price'], $product_info['tax_class_id'], $this->config->get('config_tax')));
							} else {
								$price = false;
							}
 
							$option_value_data[] = array(
								'product_option_value_id' => $option_value['product_option_value_id'],
								'option_value_id'         => $option_value['option_value_id'],
								'name'                    => $option_value['name'],
								'image'                   => $this->model_tool_image->resize($option_value['image'], 50, 50),
								'price'                   => $price,
								'price_prefix'            => $option_value['price_prefix']
							);
						}
					}
 
					$this->data['options'][] = array(
						'product_option_id' => $option['product_option_id'],
						'option_id'         => $option['option_id'],
						'name'              => $option['name'],
						'type'              => $option['type'],
						'option_value'      => $option_value_data,
						'required'          => $option['required']
					);					
				} elseif ($option['type'] == 'text' || $option['type'] == 'textarea' || $option['type'] == 'file' || $option['type'] == 'date' || $option['type'] == 'datetime' || $option['type'] == 'time') {
					$this->data['options'][] = array(
						'product_option_id' => $option['product_option_id'],
						'option_id'         => $option['option_id'],
						'name'              => $option['name'],
						'type'              => $option['type'],
						'option_value'      => $option['option_value'],
						'required'          => $option['required']
					);						
				}
			}		
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