# \ud83e\udde0 PHP 7.4 \u2013 Feature Hub, Upgrade Guide, and Developer Notes<\/p>\n
Released: **28 November 2019**
\nEnd of Life: **28 November 2022**<\/p>\n
This page is a central resource for PHP 7.4 \u2014 including all major new features, deprecations, upgrade notes, and learning articles.
\nUseful for interview prep, real-world migration, or mastering new syntax.<\/p>\n
—<\/p>\n
## \ud83d\udd39 New Features<\/p>\n
– \u2705 [Arrow Functions (`fn`) \u2192](\/php-7-4-arrow-functions)
\n– \u2705 [Typed Properties \u2192](\/php-7-4-typed-properties)
\n– \u2705 [Null Coalescing Assignment (`??=`) \u2192](\/php-7-4-null-coalescing)
\n– \u2705 [Spread Operator in Arrays \u2192](\/php-7-4-spread-operator)
\n– \u2705 [Numeric Literal Separator \u2192](\/php-7-4-literal-separator)
\n– \u2705 [WeakReference \u2192](\/php-7-4-weak-reference)
\n– \u2705 [Preloading \u2192](\/php-7-4-preloading)
\n– \u2705 [ReflectionType Enhancements \u2192](\/php-7-4-reflectiontype)<\/p>\n
—<\/p>\n
## \u26a0\ufe0f Deprecations & Gotchas<\/p>\n
– \u274c [Curly Brace Array Access \u2192](\/php-7-4-curly-deprecation)
\n– \u274c [implode() Parameter Order \u2192](\/php-7-4-implode-fix)
\n– \u274c [Magic Quotes & `real` Type \u2192](\/php-7-4-magic-deprecations)
\n– \u274c [Uninitialized Typed Properties \u2192](\/php-7-4-uninit-error)<\/p>\n
—<\/p>\n
## \ud83e\uddea Upgrade Notes<\/p>\n
– [Full Upgrade Checklist \u2192](\/php-7-4-upgrade-checklist)
\n– [Laravel Compatibility Issues \u2192](\/php-7-4-laravel-warning)
\n– [How to Enable Preloading \u2192](\/php-7-4-preload-config)<\/p>\n
—<\/p>\n
## \ud83d\ude80 Performance Benchmarks<\/p>\n
– Up to **15% faster** than PHP 7.3
\n– [Real-world Benchmarks \u2192](\/php-7-4-performance)<\/p>\n
—<\/p>\n
## \ud83d\udcd8 RFC Index (Official)<\/p>\n
– [PHP.net RFC Archive \u2192](https:\/\/wiki.php.net\/rfc#php_74)
\n– [Release Announcement \u2192](https:\/\/www.php.net\/releases\/7_4_0.php)
\n– [Full Migration Guide \u2192](https:\/\/www.php.net\/manual\/en\/migration74.php)<\/p>\n
—<\/p>\n
## \ud83e\udde0 My Developer Notes<\/p>\n
– Typed properties are powerful but need null safety
\n– Arrow functions improve readability drastically
\n– Preloading is cool but hard to debug
\n– [See my tips for projects upgrading from 7.3 \u2192](\/php-7-4-real-upgrade-tips)<\/p>\n
—<\/p>\n
## \ud83d\udd16 Tags: `php-7.4`, `upgrade-guide`, `laravel`, `performance`, `rfc`, `deprecations`<\/p>\n
—<\/p>\n","protected":false},"excerpt":{"rendered":"
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