[PHP 8.0] [Meta]

[TomasVotruba]

New Accepted Features

get_resource_id()

• PR: Add get_resource_id() function php/php-src#5427

mixed type

• RFC: https://wiki.php.net/rfc/mixed_type_v2

constructor promotion

• RFC: https://wiki.php.net/rfc/constructor_promotion

Generic sources

• https://www.reddit.com/r/PHP/comments/g5w52s/php_8_will_add_union_types_the_jit/
• https://wiki.php.net/rfc/deprecations_php_8_0

1. str_starts_with() / str_ends_with() ✔️

• RFC: https://wiki.php.net/rfc/add_str_starts_with_and_ends_with_functions
• Issue: [PHP 8.0] Add str_starts_with and str_ends_with #3221

2. str_contains() ✔️

• RFC: https://wiki.php.net/rfc/str_contains
• Issue: [PHP 8.0] Add str_contains #3025

3. Stringable interface for classes with __toString() ✔️

• RFC: https://wiki.php.net/rfc/stringable

4. Attributes v2 ✔️

• RFC: https://wiki.php.net/rfc/attributes_v2

5. static type ✔️

• RFC: https://wiki.php.net/rfc/static_return_type
• in e.g. Rector\TypeDeclaration\Rector\FunctionLike\ReturnTypeDeclarationRector

6. ::class on objects ✔️

• RFC: https://wiki.php.net/rfc/class_name_literal_on_object

7. get_debug_type ✔️

• RFC: https://wiki.php.net/rfc/get_debug_type

8. token_get_all to PhpToken ✔️

• RFC: https://wiki.php.net/rfc/token_as_object

9. catches without $variable ✔️

• RFC: https://wiki.php.net/rfc/non-capturing_catches

10. match ✔️

• RFC: https://wiki.php.net/rfc/match_expression_v2
• Rector PR: [PHP 8.0] Add ChangeSwitchToMatchRector #3569

New features, without no path to upgrade

• https://wiki.php.net/rfc/throw_expression

[staabm]

get_debug_type() see https://wiki.php.net/rfc/get_debug_type

Object-based token_get_all() https://wiki.php.net/rfc/token_as_object

[TomasVotruba]

@staabm Could you provide before/after diff snippet for both of them? So we can make rules of it and focus on that part only

[staabm]

another merged PR: php/php-src#5427

before php8

$resource = fopen(...); // example way to get a resource 
echo (int) $resource;

with php8

$resource = fopen(...); // example way to get a resource 
echo get_resource_id($resource);

[staabm]

Could you provide before/after diff snippet for both of them? So we can make rules of it and focus on that part only

regarding: Object-based token_get_all() wiki.php.net/rfc/token_as_object

before

$tokens = token_get_all($code);
foreach ($tokens as $token) {
    if (is_array($token)) {
       $name = token_name($token[0]);
       $text = $token[1];
    } else {
       $name = null;
       $text = $token;
    }
}

after (php8+)

$tokens = PhpToken::getAll($code);
foreach($tokens as $phpToken) {
   // it is not necessary to continuously check whether an array or string token is being used.

   $name = $phpToken->getTokenName();
   $text = $phpToken->text;
}

[TomasVotruba]

AFAIK all cases are resolved now 👍