What PHP version does PrestaShop 9 require?
PrestaShop 9.x requires PHP 8.1 or higher. PHP 8.2 or 8.3 is recommended for best performance and security. If you are upgrading from an older PrestaShop version, you will likely need to upgrade PHP simultaneously, which means checking that all your modules support the new PHP version as well.
Learn more: PrestaShop 9 migration guide.
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