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features.js
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features.js
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/**
* The format of this file is documented in the README.md.
*
* The file is ordered with entries related to the most recent version of
* PHP at the top, and the oldest version at the bottom.
*
* That means:
* - A feature added in the most recent version of PHP goes at the top of the file.
* - Equally a feature deprecated or removed in the most recent version of PHP
* will also go at the top of the file.
* - A feature added in the oldest version will go at the bottom of the file. UNLESS
* it is then deprecated or removed in a newer version.
*/
const features = [
{
name: "mb_str_pad",
description:
"The mbstring equivalent of `str_pad`.",
keywords: ["string", "mbstring", "multibyte"],
added: "8.3",
deprecated: null,
removed: null,
resources: [
{
name: "RFC: mb_str_pad",
url: "https://wiki.php.net/rfc/mb_str_pad",
},
{
name: "New mb_str_pad function - Stitcher.io",
url: "https://stitcher.io/blog/new-in-php-83#new-mb_str_pad-function-rfc",
},
],
},
{
name: "Anonymous readonly classes",
description:
"Anonymous classes can now be marked as readonly.",
keywords: ["objects", "classes", "readonly"],
added: "8.3",
deprecated: null,
removed: null,
resources: [
{
name: "Anonymous readonly classes - Stitcher.io",
url: "https://stitcher.io/blog/new-in-php-83#anonymous-readonly-classes-upgrading",
},
],
},
{
name: "#[Override] attribute",
description:
"Mark a method as overriding a parent method using the #[Override] attribute.",
keywords: ["objects", "methods", "inheritance", "attributes"],
added: "8.3",
deprecated: null,
removed: null,
resources: [
{
name: "RFC: Marking overridden methods",
url: "https://wiki.php.net/rfc/marking_overriden_methods",
},
{
name: "#[Override] attribute - Stitcher.io",
url: "https://stitcher.io/blog/new-in-php-83#%23%5Boverride%5D-attribute-rfc",
},
],
},
{
name: "Reinitializing readonly properties when cloning objects",
description:
"PHP 8.3 adds the possibility of overwriting readonly property values while cloning an object.",
keywords: ["objects", "properties", "readonly", "clone"],
added: "8.3",
deprecated: null,
removed: null,
resources: [
{
name: "RFC: Readonly amendments",
url: "https://wiki.php.net/rfc/readonly_amendments",
},
{
name: "Readonly amendments - Stitcher.io",
url: "https://stitcher.io/blog/new-in-php-83#readonly-amendments-rfc",
},
{
name: "Cloning readonly properties in PHP 8.3 - Stitcher.io",
url: "https://stitcher.io/blog/cloning-readonly-properties-in-php-83",
}
],
},
{
name: "Randomizer::nextFloat",
description:
"Generates a random float between 0 and 1, where 1 is excluded.",
keywords: ["random", "randomizer", "floats", "numbers"],
added: "8.3",
deprecated: null,
removed: null,
resources: [
{
name: "RFC: Randomizer Additions",
url: "https://wiki.php.net/rfc/randomizer_additions",
},
{
name: "Randomizer additions - Stitcher.io",
url: "https://stitcher.io/blog/new-in-php-83#randomizer-additions-rfc",
},
{
name: "Random extension: New \Random\Randomizer::getFloat() and nextFloat() methods - PHP.Watch",
url: "https://php.watch/versions/8.3/Randomizer-getFloat-nextFloat",
}
],
},
{
name: "Randomizer::getFloat",
description:
"Generate a random float value.",
keywords: ["random", "randomizer", "floats", "numbers"],
added: "8.3",
deprecated: null,
removed: null,
resources: [
{
name: "RFC: Randomizer Additions",
url: "https://wiki.php.net/rfc/randomizer_additions",
},
{
name: "Randomizer additions - Stitcher.io",
url: "https://stitcher.io/blog/new-in-php-83#randomizer-additions-rfc",
},
{
name: "Random extension: New \Random\Randomizer::getFloat() and nextFloat() methods - PHP.Watch",
url: "https://php.watch/versions/8.3/Randomizer-getFloat-nextFloat",
}
],
},
{
name: "Randomizer::getBytesFromString",
description:
"Generate a string with a given length that consists of randomly selected bytes from a given string.",
keywords: ["random", "randomizer"],
added: "8.3",
deprecated: null,
removed: null,
resources: [
{
name: "RFC: Randomizer Additions",
url: "https://wiki.php.net/rfc/randomizer_additions",
},
{
name: "Randomizer additions - Stitcher.io",
url: "https://stitcher.io/blog/new-in-php-83#randomizer-additions-rfc",
},
{
name: "Random extension: New \Random\Randomizer::getBytesFromString method - PHP.Watch",
url: "https://php.watch/versions/8.3/Randomizer-getBytesFromString",
}
],
},
{
name: "Dynamic class constant and enum fetch with MyClass::{$constName}",
description:
"PHP 8.3 and later supports fetching class constants and Enum objects with a variable name using `MyClass::{$constName}`",
keywords: ["constants", "enums"],
added: "8.3",
deprecated: null,
removed: null,
resources: [
{
name: "RFC: Dynamic class constant fetch",
url: "https://wiki.php.net/rfc/dynamic_class_constant_fetch",
},
{
name: "Dynamic class constant fetch - Stitcher.io",
url: "https://stitcher.io/blog/new-in-php-83#dynamic-class-constant-fetch-rfc",
},
{
name: "Dynamic class constant and Enum member fetch support - PHP.Watch",
url: "https://php.watch/versions/8.3/dynamic-class-const-enum-member-syntax-support",
}
],
},
{
name: "json_validate",
description:
"Returns true if the string passed contains a valid json, otherwise returns false.",
keywords: ["JSON", "validation"],
added: "8.3",
deprecated: null,
removed: null,
resources: [
{
name: "RFC: json_validate",
url: "https://wiki.php.net/rfc/json_validate",
},
{
name: "The new json_validate() function - Stitcher.io",
url: "https://stitcher.io/blog/new-in-php-83#the-new-json_validate()-function-rfc",
},
{
name: "Added json_validate function - PHP.Watch",
url: "https://php.watch/versions/8.3/json_validate",
}
],
},
{
name: "Typed Class Constants",
description:
"PHP 8.3 and later support declaring a type for PHP Class constants.",
keywords: ["types", "typehints", "constants", "classes"],
added: "8.3",
deprecated: null,
removed: null,
resources: [
{
name: "RFC: Typed class constants",
url: "https://wiki.php.net/rfc/typed_class_constants",
},
{
name: "Typed Class Constants - PHP.Watch",
url: "https://php.watch/versions/8.3/typed-constants",
},
{
name: "Typed class constants - Stitcher.io",
url: "https://stitcher.io/blog/new-in-php-83#typed-class-constants-rfc",
}
],
},
{
name: "openssl_cipher_key_length",
description:
"Gets the cipher key length",
keywords: ["openssl", "encryption", "security", "ssl"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Docs: openssl_cipher_key_length",
url: "https://www.php.net/manual/en/function.openssl-cipher-key-length.php",
}
],
},
{
name: "sodium_crypto_stream_xchacha20_xor_ic",
description:
"Encrypts a message using a nonce and a secret key (no authentication)",
keywords: ["sodium", "encryption", "security", "crypto", "cryptography"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Docs: sodium_crypto_stream_xchacha20_xor_ic",
url: "https://www.php.net/manual/en/function.sodium-crypto-stream-xchacha20-xor-ic.php",
}
],
},
{
name: "libxml_get_external_entity_loader",
description:
"Get external entity loader previously installed by libxml_set_external_entity_loader().",
keywords: ["xml"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Docs: libxml_get_external_entity_loader",
url: "https://www.php.net/manual/en/function.libxml-get-external-entity-loader.php",
}
],
},
{
name: "libxml_get_external_entity_loader",
description:
"Get external entity loader previously installed by libxml_set_external_entity_loader().",
keywords: ["xml"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Docs: libxml_get_external_entity_loader",
url: "https://www.php.net/manual/en/function.libxml-get-external-entity-loader.php",
}
],
},
{
name: "ini_parse_quantity",
description:
"Returns the interpreted size in bytes on success from an ini shorthand.",
keywords: ["ini", "php.ini"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Docs: ini_parse_quantity",
url: "https://www.php.net/manual/en/function.ini-parse-quantity.php",
}
],
},
{
name: "curl_upkeep",
description:
"Performs any connection upkeep checks.",
keywords: ["curl", "connection", "http"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Docs: curl_upkeep",
url: "https://www.php.net/manual/en/function.curl_upkeep.php",
}
],
},
{
name: "ReflectionMethod::hasPrototype",
description:
"Returns whether a method has a prototype.",
keywords: ["reflection", "functions", "methods"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Docs: ReflectionMethod::hasPrototype",
url: "https://www.php.net/manual/en/reflectionmethod.hasprototype.php",
}
],
},
{
name: "ReflectionFunction::isAnonymous",
description:
"Checks if a function is anonymous.",
keywords: ["reflection", "functions"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Docs: ReflectionFunction::isAnonymous",
url: "https://www.php.net/manual/en/reflectionfunction.isanonymous.php",
}
],
},
{
name: "ZipArchive::clearError",
description:
"Clear the status error message, system and/or zip messages",
keywords: ["zip", "errors"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Docs: ZipArchive::clearError",
url: "https://www.php.net/manual/en/ziparchive.clearerror.php",
}
],
},
{
name: "ZipArchive::getStreamName",
description:
"Get a file handler to the entry defined by its name.",
keywords: ["zip", "streams"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Docs: ZipArchive::getStreamName",
url: "https://www.php.net/manual/en/ziparchive.getstreamname.php",
}
],
},
{
name: "ZipArchive::getStreamIndex",
description:
"Get a file handler to the entry defined by its index.",
keywords: ["zip", "streams"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Docs: ZipArchive::getStreamIndex",
url: "https://www.php.net/manual/en/ziparchive.getstreamindex.php",
}
],
},
{
name: "New mysqli_execute_query function and mysqli::execute_query method.",
description:
"In PHP 8.2, the MySQLi extension provides a more straight-forward approach to prepare, bind, execute, and retrieve results from SQL.",
keywords: ["mysql", "mysqli", "extensions", "database"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Docs: mysqli_execute_query",
url: "https://www.php.net/manual/en/mysqli.execute-query.php",
},
{
name: "PHP Watch",
url: "https://php.watch/versions/8.2/mysqli_execute_query",
}
],
},
{
name: "Constants in traits",
description:
"You can now use constants in traits.",
keywords: ["constants", "const", "traits", "classes"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Announcement (php.net)",
url: "https://www.php.net/releases/8.2/en.php#constants_in_traits",
},
{
name: "(RFC) Constants in Traits",
url: "https://wiki.php.net/rfc/constants_in_traits",
},
{
name: "What's new in PHP 8.2 (stitcher.io)",
url: "https://stitcher.io/blog/new-in-php-82#constants-in-traits-rfc",
},
],
},
{
name: "New 'Random' extension",
description:
"a new random number generator that fixes a lot of problems with the previous one.",
keywords: ["random", "randomizer", "rng", "number", "numbers"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Announcement (php.net)",
url: "https://www.php.net/releases/8.2/en.php#random_extension",
},
{
name: "(RFC) Random Extension 5.x",
url: "https://wiki.php.net/rfc/rng_extension",
},
{
name: "(RFC) Random Extension Improvement",
url: "https://wiki.php.net/rfc/random_extension_improvement",
},
{
name: "What's new in PHP 8.2 (stitcher.io)",
url: "https://stitcher.io/blog/new-in-php-82#new-random-extension-rfc",
},
],
},
{
name: "Disjunctive Normal Form types",
description:
"DNF types allow us to combine union and intersection types. Intersection types must be grouped with brackets. e.g. `(HasTitle&HasId)|null`",
keywords: ["types", "typehints"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Announcement (php.net)",
url: "https://www.php.net/releases/8.2/en.php#dnf_types",
},
{
name: "(RFC) Disjunctive Normal Form Types",
url: "https://wiki.php.net/rfc/dnf_types",
},
{
name: "What's new in PHP 8.2 (stitcher.io)",
url: "https://stitcher.io/blog/new-in-php-82#disjunctive-normal-form-types-rfc",
},
],
},
{
name: "Read-only classes",
description:
"Marking a class as read-only will implicitly mark all instance properties of a class as readonly. Furthermore, it will prevent the creation of dynamic properties.",
keywords: ["readonly", "classes", "objects"],
added: "8.2",
deprecated: null,
removed: null,
resources: [
{
name: "Announcement (php.net)",
url: "https://www.php.net/releases/8.2/en.php#dnf_types",
},
{
name: "(RFC) Readonly classes",
url: "https://wiki.php.net/rfc/readonly_classes",
},
{
name: "What's new in PHP 8.2 (stitcher.io)",
url: "https://stitcher.io/blog/new-in-php-82#readonly-classes-rfc",
},
],
},
{
name: "null, true and false as standalone types",
description:
"null corresponds to PHP's unit type, i.e. the type which holds a single value. false is a literal type of type bool",
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removed: null,
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{
name: "(RFC) Allow null and false as standalone types",
url: "https://wiki.php.net/rfc/null-false-standalone-types",
},
{
name: "(RFC) Add true type",
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},
{
name: "What's new in PHP 8.2 (stitcher.io)",
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{
name: "Reset peak memory usage function (memory_reset_peak_usage)",
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"Reset the peak memory usage returned by the <code>memory_get_peak_usage</code> function",
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{
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{
name: "Backtrace parameter redaction / New SensitiveParameter attribute",
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"Mark parameters as sensitive to exclude them from a backtrace using the new `#[\\SensitiveParameter]` attribute",
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removed: null,
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{
name: "Fibers (Fiber class, Fiber exceptions)",
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"Lightweight concurrency for PHP. Fibers represent full-stack, interruptible functions. Fibers may be suspended from anywhere in the call-stack, pausing execution within the fiber until the fiber is resumed at a later time.",
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"types",
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"interruptible",
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{
name: "Fibres overview and documentation (php.net)",
url: "https://www.php.net/manual/en/language.fibers.php",
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{
name: "xxHash algorithm",
description:
"xxHash is an extremely fast hashing algorithm that is not designed for cryptographic purposes, but provides excellent randomness and dispersion of output, and uniqueness of to minimize collisions",
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"xxhash",
"hash",
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"performance",
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{
name: "hash function documentation (php.net)",
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},
{
name: "xxHash Website",
url: "https://xxhash.com/",
},
{
name: "xxHash Repository (github.com)",
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{
name: "Enums",
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removed: null,
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{
name: "Array unpacking with string keys",
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"e.g. <code>$result = ['a' => 0, ...$arrayA, ...$arrayB];</code>",
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removed: null,
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{
name: "Readonly properties",
description:
"A property can be declared with the readonly modifier, which prevents modification of the property after initialization.",
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{
name: "never type",
description:
"<code>never</code> is a return type indicating the function does not return.",
keywords: ["types", "typehints", "return"],
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removed: null,
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{
name: "new in initializers",
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removed: null,
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{
name: "First-class callable syntax ",
description:
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removed: null,
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{
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removed: null,
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{
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removed: null,
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{
name: "Attributes",
description:
"Attributes, also known as annotations in many other languages, can be used to add metadata to classes, methods, variables and what not; in a structured way. Like docblocks, but recognised properly by PHP.",
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removed: null,
resources: [
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name: "Attributes (stitcher.io)",
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{
name: "Union types",
description:
"A union type declaration accepts values of multiple different simple types, rather than a single one. Also referred to as composite types.",
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deprecated: null,
removed: null,
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{
name: "Constructor promotion",
description:
"Constructor parameters may be promoted to correspond to an object property.",
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deprecated: null,
removed: null,
resources: [
{
name: "Constructor promotion (php.net)",
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{
name: "match expression",
description:
"<code>match</code> is like <code>switch</code>, but returns a value.",
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deprecated: null,
removed: null,
resources: [
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name: "Match expression (php.net)",
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{
name: "Named arguments",
description:
"Named arguments allow passing arguments to a function based on the parameter name, rather than the parameter position.",
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deprecated: null,
removed: null,
resources: [
{
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},
],
},
{
name: "Nullsafe operator",
description:
`Nullsafe operator allows you to access properties and methods of nullable objects.
e.g. \`$country = $session?->user?->getAddress()?->country;</$country>\``,
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deprecated: null,
removed: null,
resources: [
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{
name: "str_contains",
description: "Determine if a string contains a given substring",
keywords: ["functions", "helpers", "strings", "utilities", "utils"],
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deprecated: null,
removed: null,
resources: [
{
name: "str_contains (php.net)",
url: "https://www.php.net/manual/en/function.str-contains.php",
},
],
},
{
name: "str_starts_with",
description: "Check if a string starts with a given substring",
keywords: ["functions", "helpers", "strings", "utilities", "utils"],
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deprecated: null,
removed: null,
resources: [
{
name: "str_starts_with (php.net)",
url: "https://www.php.net/manual/en/function.str-starts-with.php",
},
],
},
{
name: "str_ends_with",
description: "Check if a string ends with a given substring",
keywords: ["functions", "helpers", "strings", "utilities", "utils"],
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deprecated: null,
removed: null,
resources: [
{
name: "str_ends_with (php.net)",
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},
],
},
{
name: "Throw expression",
description:
"The <code>throw</code> keyword is an expression, therefore an exception can be thrown in any expression context.",
keywords: ["throw", "expression", "exceptions"],
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deprecated: null,
removed: null,
resources: [
{
name: "Exceptions (php.net)",
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{
name: "RFC (php.net)",
url: "https://wiki.php.net/rfc/throw_expression",
},
],
},
{
name: "mixed type",
description:
"`mixed` is equivalent to the union type `object|resource|array|string|int|float|bool|null`.",
keywords: ["declarations", "typehints", "return", "types"],
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deprecated: null,
removed: null,
resources: [
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name: "mixed type (php.net)",
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},
{
name: "PHP 8.0: New mixed pseudo type (php.watch)",
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},
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{
name: "Typed properties",
description: "Class properties now support type declarations.",
keywords: ["properties", "class", "types", "typehints"],
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deprecated: null,
removed: null,
resources: [
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name: "Property type declarations (php.net)",
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{
name: "Arrow functions",
description:
`Arrow functions are a shorthand for anonymous functions:
<code>fn (argument_list) => expr</code>.`,
keywords: ["closures", "anonymous", "shorthand", "short"],
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deprecated: null,
removed: null,
resources: [
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},
],
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{
name: "Array unpacking (numeric keys only)",
description: "e.g. <code>$result = [0, …$arrayA, …$arrayB, 6, 7];</code>",
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deprecated: null,
removed: null,
resources: [
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name: "RFC (php.net)",
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},
],
},
{
name: "Null coalescing assignment operator",
description: "e.g. `$data['date'] ??= new DateTime();`",
keywords: ["operators", "assignment"],
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deprecated: null,
removed: null,
resources: [
{
name: "Other assignment operators (php.net)",
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{
name: " Null coalescing assignment operator (stitcher.io)",
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