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PHP 8.6 Adds Partial Function Application, clamp() and Duration for Laravel Developers

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PHP 8.6 is scheduled for release on November 19, 2026, and is already at the release candidate stage. Rather than listing every change, the article highlights five features most likely to affect everyday Laravel code. The headline feature, partial function application, lets developers fill in some arguments of a call and receive a closure, with placeholders marking the rest. A new clamp() function keeps values within a minimum and maximum, useful for capping user-supplied input such as page sizes or discounts. The piece also covers a new readonly Time\Duration value object for nanosecond-precision durations, and it closes with an upgrade checklist for moving production applications.

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