Re: RFC proposal: values getter in BackedEnum

From: Date: Thu, 09 Feb 2023 08:56:15 +0000
Subject: Re: RFC proposal: values getter in BackedEnum
References: 1  Groups: php.internals 
Request: Send a blank email to internals+get-119501@lists.php.net to get a copy of this message
On Thu, 9 Feb 2023 at 01:30, Sergii Shymko <sergey@shymko.net> wrote: > I'd like to propose an improvement to backed enumerations introduced in > PHP 8.1. > When using enums, it's very common to get all values using the following > boilerplate: > $enumValues = array_map( > fn (\BackedEnum $case) => $case->value, > ExampleEnum::cases() > ); > Since the value is exposed as a public property, there is already a much shorter way of writing this: $enumValues = array_column(BackedEnum::cases(), 'value'); As I pointed out in a StackOverflow answer [ https://stackoverflow.com/a/71235974/157957], you can get the case name the same way, and use different arguments to array_column to get combinations like a look up table from value to name: $nameToValue = array_column(BackedEnum::cases(), 'name', 'value'); Regards, -- Rowan Tommins [IMSoP]

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