PHP Compatibility Index

Is Hummingbird Performance compatible with PHP 8?

Version 3.21.2 · 70,000+ active installs · requires PHP 7.4

Works on PHP 8.0–8.5, with deprecation notices from 8.1

No removed PHP features found in Hummingbird Performance 3.21.2. It uses 6 deprecated feature(s) that only log notices today.

PHP 8.0
✓
PHP 8.1
⚠ 3
PHP 8.2
⚠ 3
PHP 8.3
⚠ 3
PHP 8.4
⚠ 3
PHP 8.5
⚠ 6

✓ no problems · ⚠ deprecation notices only (still works) · ✗ uses something removed in that PHP version

Check your whole site, not just one plugin. The free PHP Upgrade Check plugin scans every plugin and theme you have installed (including premium and custom ones) and explains each problem. It runs on any host.

Deprecated (works today, logs notices)

File:lineWhat
core/externals/hub-connector/lib/PHPSecLib/Crypt/Hash.php:242Function mhash() is deprecated since PHP 8.1; Use the hash_*() functions instead
core/externals/hub-connector/lib/PHPSecLib/Crypt/Hash.php:335The constant "MHASH_MD5" is deprecated since PHP 8.5
core/externals/hub-connector/lib/PHPSecLib/Crypt/Hash.php:338The constant "MHASH_SHA256" is deprecated since PHP 8.5
core/externals/hub-connector/lib/PHPSecLib/Crypt/Hash.php:342The constant "MHASH_SHA1" is deprecated since PHP 8.5
core/externals/hub-connector/lib/PHPSecLib/Crypt/Hash.php:402Function mhash() is deprecated since PHP 8.1; Use the hash_*() functions instead
core/externals/hub-connector/lib/PHPSecLib/Crypt/Hash.php:419Function mhash() is deprecated since PHP 8.1; Use the hash_*() functions instead

Removed long ago or protected by a check (code that most likely never runs on PHP 8)

File:lineWhat
core/externals/hub-connector/lib/PHPSecLib/Crypt/Random.php:77Extension 'mcrypt' is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
core/externals/hub-connector/lib/PHPSecLib/Crypt/Random.php:77Function mcrypt_create_iv() is deprecated since PHP 7.1 and removed since PHP 7.2; Use random_bytes() or OpenSSL instead
core/externals/hub-connector/lib/PHPSecLib/Crypt/Random.php:119Extension 'mcrypt' is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
core/externals/hub-connector/lib/PHPSecLib/Crypt/Random.php:119Function mcrypt_create_iv() is deprecated since PHP 7.1 and removed since PHP 7.2; Use random_bytes() or OpenSSL instead
core/externals/hub-connector/lib/PHPSecLib/Crypt/Random.php:119The constant "MCRYPT_DEV_URANDOM" is deprecated since PHP 7.1 and removed since PHP 7.2
core/modules/class-advanced.php:672Extension 'mysql_' is deprecated since PHP 5.5 and removed since PHP 7.0; Use mysqli instead
core/modules/class-advanced.php:672Function mysql_get_server_info() is deprecated since PHP 5.5 and removed since PHP 7.0

Plugin page on WordPress.org: hummingbird-performance