What potential issues or conflicts can arise when manipulating the display of prices in Magento using PHP code?

Potential issues or conflicts that can arise when manipulating the display of prices in Magento using PHP code include incorrect calculation of prices, display inconsistencies across different pages or sections of the website, and compatibility issues with other Magento extensions or customizations. To solve these issues, it is important to carefully test any changes made to price display and ensure that they are consistent and accurate throughout the website. Additionally, it is recommended to use Magento's built-in price formatting functions to ensure compatibility with other parts of the platform.

// Example of using Magento's built-in price formatting functions
$price = 100.50;
$formattedPrice = Mage::helper('core')->currency($price, true, false);
echo $formattedPrice;