Requirements

Read this page to get up to speed on what may be required. It can depend on which components you decide to use.

PHP and Composer#

PHP 8.4.0 or newer, and Composer. Every v7 component declares strict_types=1 in every source file and requires >= 8.4.0, so there's no partial upgrade path and no component that still runs on 8.3. CI runs the suite on PHP 8.4 and 8.5.

Extensions Composer Enforces#

Six extensions are hard require entries rather than suggestions, so Composer resolves against them at install time instead of letting you discover them at runtime:

Extension	Required by	Present in
`ext-curl`	`pop-http`	core and full framework
`ext-json`	`pop-utils`	core and full framework
`ext-dom`	`pop-dom`	full framework
`ext-gd`	`pop-image`	full framework
`ext-openssl`	`pop-crypt`	full framework
`ext-sodium`	`pop-crypt`	full framework

Extensions Each Component Would Like#

These are suggest entries. Composer never enforces them, an installation completes without them, and nothing warns you at any point — so this table is the one to read against what you actually plan to use:

For	Extensions	Wanted by
Databases	`ext-pdo`, `ext-mysqli`, `ext-pgsql`, `ext-sqlite3`	`pop-db`
Images	`ext-imagick`, `ext-ctype`	`pop-image`
PDFs	`ext-imagick`, `ext-iconv`, `ext-mbstring`, `ext-zlib`	`pop-pdf`
Queues	`ext-redis`	`pop-queue`
Caching	`ext-apcu`, `ext-redis`, `ext-memcached`	`pop-cache`
HTTP	`ext-zlib`, `ext-mbstring`, `ext-simplexml`	`pop-http`
Config and locale files	`ext-simplexml`, `ext-libxml`	`pop-config`, `pop-i18n`, `pop-form`

Requirements

PHP and Composer#

Extensions Composer Enforces#

Extensions Each Component Would Like#

See Also#