Web Reference: PHP 7 adds support for return type declarations. Similarly to argument type declarations, return type declarations specify the type of the value that will be returned from a function. Jan 16, 2026 · With a major step forward, PHP 7 introduces plenty of new features and performance upgrades. However, it also removes old, deprecated functionality, which introduces some compatibility breaks, making it harder for older applications to migrate to the new version. Jul 11, 2025 · What makes PHP 7 unique? Speed and performance just got better with PHP 7 - less memory used by PHP codebase, a faster engine developed, being said that, let's take a look what has been added into this package
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