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Source: freek.dev
★ Discovering PHP's first-class callable syntax
When looking at recent changes in the Laravel framework, I saw some PHP syntax that I didn't see before. Because I've been working with PHP for over 20 years and have a firm grasp of the language, I was surprised to see new syntax for the first time.
You might have seen the... operator (aka the spread or splat operator) in various other contexts.
collect(['a' 'b', 'c']) ->map(function($letter) { return strtoupper($letter); }); Using the first-class callable syntax, you can rewrite that code like this.
If you want to know more about this syntax, check out https://php.watch/versions/8.1/first-class-callable-syntax, which also lists the limitations and edge cases.
You might have seen the... operator (aka the spread or splat operator) in various other contexts.
collect(['a' 'b', 'c']) ->map(function($letter) { return strtoupper($letter); }); Using the first-class callable syntax, you can rewrite that code like this.
If you want to know more about this syntax, check out https://php.watch/versions/8.1/first-class-callable-syntax, which also lists the limitations and edge cases.
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