[PRES] [presentations] master: AFUP talk

Author: Derick Rethans (derickr) Date: 2024-10-08T18:46:50+01:00 Commit: https://github.com/php/presentations/commit/6e1e0d88425431539556b032af2675da4ce50dcc Raw diff: https://github.com/php/presentations/commit/6e1e0d88425431539556b032af2675da4ce50dcc.diff AFUP talk Changed paths: A php-afup24.xml A slides/internals/php84-asymmetric-visibility-2.xml A slides/internals/php84-asymmetric-visibility.xml A slides/internals/php84-bcrypt-cost.xml A slides/internals/php84-deprecate-implicitly-nullable-types.xml A slides/internals/php84-deprecated-attribute.xml A slides/internals/php84-dom-callbacks.xml A slides/internals/php84-grapheme-str-split-2.xml A slides/internals/php84-grapheme-str-split-3.xml A slides/internals/php84-grapheme-str-split.xml A slides/internals/php84-lazy-objects.xml A slides/internals/php84-new-without-parentheses.xml A slides/internals/php84-property-hooks-2.xml A slides/internals/php84-property-hooks-example-1.xml A slides/internals/php84-property-hooks-example-2.xml A slides/internals/php84-property-hooks-example-3.xml A slides/internals/php84-property-hooks-example-4.xml A slides/internals/yawn-cat-yawning.gif M slides/internals/php84-policy-repository.xml M slides/internals/php84-round-modes.xml Diff: diff --git a/php-afup24.xml b/php-afup24.xml new file mode 100644 index 00000000..07b9841d --- /dev/null +++ b/php-afup24.xml @@ -0,0 +1,92 @@ +<?xml version="1.0" encoding="utf-8"?> +<presentation css="derick.css"> +<topic>PHP</topic> +<title>What's New in PHP 8.4?</title> +<event>Forum PHP 2024</event> +<location>Disneyland, Paris, France</location> +<date>Oct 10th, 2024</date> +<speaker>Derick Rethans</speaker> +<email>derick@php.net</email> +<twitter>derickr</twitter> +<mastodon>@derickr@phpc.social</mastodon> +<url>https://derickrethans.nl/talks/php-afup24</url> +<joindin></joindin> +<slide>slides/xdebug/title.xml</slide> +<slide>slides/mongodb/me.xml</slide> + + +Syntax: + +https://wiki.php.net/rfc/asymmetric-visibility-v2 +<slide>slides/internals/php84-asymmetric-visibility.xml</slide> +<slide>slides/internals/php84-asymmetric-visibility-2.xml</slide> + +https://wiki.php.net/rfc/property-hooks +<slide>slides/internals/php84-property-hooks.xml</slide> +<slide>slides/internals/php84-property-hooks-example-1.xml</slide> +<slide>slides/internals/php84-property-hooks-example-2.xml</slide> +<slide>slides/internals/php84-property-hooks-example-3.xml</slide> +<slide>slides/internals/php84-property-hooks-example-4.xml</slide> + +https://wiki.php.net/rfc/new_without_parentheses +<slide>slides/internals/php84-new-without-parentheses.xml</slide> + + + +Major additions: + +https://wiki.php.net/rfc/domdocument_html5_parser +<slide>slides/internals/php84-dom-html5.xml</slide> + +<!-- +https://wiki.php.net/rfc/improve_callbacks_dom_and_xsl +<sl ide>slides/internals/php84-dom-callbacks.xml</slide> +--> + +https://wiki.php.net/rfc/lazy-objects +<slide>slides/internals/php84-lazy-objects.xml</slide> + + +https://wiki.php.net/rfc/jit-ir +<slide>slides/internals/php80-jit.xml</slide> +<slide>slides/internals/php84-jit.xml</slide> + +Minor additions: + +https://wiki.php.net/rfc/deprecated_attribute +<slide>slides/internals/php84-deprecated-attribute.xml</slide> + +https://wiki.php.net/rfc/pdo_driver_specific_subclasses +<slide>slides/internals/php84-pdo-subclass.xml</slide> + +https://wiki.php.net/rfc/new_rounding_modes_to_round_function +<slide>slides/internals/php84-round-modes.xml</slide> + +https://wiki.php.net/rfc/bcrypt_cost_2023 +<slide>slides/internals/php84-bcrypt-cost.xml</slide> + +https://wiki.php.net/rfc/grapheme_str_split +<slide>slides/internals/php84-grapheme-str-split.xml</slide> +<slide>slides/internals/php84-grapheme-str-split-2.xml</slide> +<slide>slides/internals/php84-grapheme-str-split-3.xml</slide> + +Deprecations: + +https://wiki.php.net/rfc/deprecate-implicitly-nullable-types +<slide>slides/internals/php84-deprecate-implicitly-nullable-types.xml</slide> + +https://wiki.php.net/rfc/unbundle_imap_pspell_oci8 + + +Policy: + +https://wiki.php.net/rfc/policy-repository +<slide>slides/internals/php84-policy-repository.xml</slide> + +https://wiki.php.net/rfc/release_cycle_update +<slide>slides/internals/php84-release-cycle.xml</slide> + +<slide>slides/internals/questions-new.xml</slide> +<slide>slides/xdebug/resources.xml</slide> + +</presentation> diff --git a/slides/internals/php84-asymmetric-visibility-2.xml b/slides/internals/php84-asymmetric-visibility-2.xml new file mode 100644 index 00000000..c7a72f32 --- /dev/null +++ b/slides/internals/php84-asymmetric-visibility-2.xml @@ -0,0 +1,13 @@ +<slide> +<title>PHP 8.4: Asymmetric Visibility</title> + +<list> + <bullet>Only works on typed properties</bullet> + <bullet>%set% visibility must be equal or lesser than main (%get%) visbility</bullet> + <bullet>Using %$obj->array[]% follows %set% visibility</bullet> + <bullet>Inherited properties must have the same time, and might have a wider visibility</bullet> + <bullet>%private(set)% also implies %final%</bullet> + <bullet>%readonly% (without %private(set)%) is analogous to %protected(set)% (+ write once semantics)</bullet> +</list> + +</slide> diff --git a/slides/internals/php84-asymmetric-visibility.xml b/slides/internals/php84-asymmetric-visibility.xml new file mode 100644 index 00000000..ee3bae76 --- /dev/null +++ b/slides/internals/php84-asymmetric-visibility.xml @@ -0,0 +1,85 @@ +<slide> +<title>PHP 8.4: Asymmetric Visibility</title> + +<div effect="fade-out"> +<example inline="2"><![CDATA[&lt;?php +class Reader +{ + /** + * @var array[Track] + */ + *private array $tracks;* + + function __construct( string $fileName ) + { + $this->parseGpx( $fileName ); + } + + private function parseGpx( $fileName ) + { + // sets $this->tracks + } + + *public function getTracks() : array* + { + return $this->tracks; + } +} +?>]]></example> +</div> + +<div effect="fade-in-out"> +<example inline="2"><![CDATA[&lt;?php +class Reader +{ + /** + * @var array[Track] + */ + *public private(set)* array $tracks; + + function __construct( string $fileName ) + { + $this->parseGpx( $fileName ); + } + + private function parseGpx( $fileName ) + { + // sets $this->tracks + } + + + + + +} +?>]]></example> +</div> + +<div effect="fade-in"> +<example inline="2"><![CDATA[&lt;?php +class Reader +{ + /** + * @var array[Track] + */ + *private(set)* array $tracks; + + function __construct( string $fileName ) + { + $this->parseGpx( $fileName ); + } + + private function parseGpx( $fileName ) + { + // sets $this->tracks + } + + + + + +} +?>]]></example> +</div> + +</slide> diff --git a/slides/internals/php84-bcrypt-cost.xml b/slides/internals/php84-bcrypt-cost.xml new file mode 100644 index 00000000..d2ce46b5 --- /dev/null +++ b/slides/internals/php84-bcrypt-cost.xml @@ -0,0 +1,12 @@ +<slide> +<title>PHP 8.4: BCrypt Cost</title> + +<blurb>PHP's default BCrypt cost for %password_hash()% is unchanged since the addition of the password hashing API in PHP 5.5 which was 11 years ago.</blurb> + +<list> + <bullet>The current cost is %10%</bullet> + <bullet>Increasing the cost by one, doubles the time</bullet> + <bullet>New cost in PHP 8.4: %12% (~less than 330ms per hash)</bullet> +</list> + +</slide> diff --git a/slides/internals/php84-deprecate-implicitly-nullable-types.xml b/slides/internals/php84-deprecate-implicitly-nullable-types.xml new file mode 100644 index 00000000..7f448f17 --- /dev/null +++ b/slides/internals/php84-deprecate-implicitly-nullable-types.xml @@ -0,0 +1,48 @@ +<slide> +<title>PHP 8.4: Deprecate Implicit Nullability</title> + +<example><![CDATA[<?php +class Rst +{ + public function __construct( RstOptions $options = null ) + { + } +}]]></example> + +<div effect="fade-in"> +<example class="error small"> +Deprecated: Rst::__construct(): Implicitly marking parameter $options as nullable is deprecated, the explicit nullable type must be used instead +</example> +</div> + +<div effect="fade-in-out"> +<example inline="2"><![CDATA[&lt;?php +class Rst +{ + public function __construct( RstOptions $options *= null* ) + { + } +}]]></example> +</div> + +<div effect="fade-in"> +<example inline="2"><![CDATA[&lt;?php +class Rst +{ + public function __construct( *?*RstOptions $options = null ) + { + } +}]]></example> +</div> + +<div effect="fade-in"> +<example inline="2"><![CDATA[&lt;?php +class Rst +{ + public function __construct( RstOptions*|null* $options = null ) + { + } +}]]></example> +</div> + +</slide> diff --git a/slides/internals/php84-deprecated-attribute.xml b/slides/internals/php84-deprecated-attribute.xml new file mode 100644 index 00000000..644d058a --- /dev/null +++ b/slides/internals/php84-deprecated-attribute.xml @@ -0,0 +1,49 @@ +<slide> +<title>PHP 8.4: #[Deprecated] Attribute</title> + +<div effect="fade-out"> +<example result="3"><![CDATA[<?php +#[\Deprecated("use test() instead", since: "2.4")] +function test3() { +} + +test3(); +?>]]></example> +</div> + +<div effect="fade-in-out"> +<example result="3"><![CDATA[<?php +class Clazz { + #[\Deprecated] + public const OLD_WAY = 'foo'; + + #[\Deprecated("use test() instead", since: "2024-10-08")] + function test2() { + } +} + +$c = new Clazz()->test2(); +echo Clazz::OLD_WAY, "\n"; +?>]]></example> +</div> + +<div effect="fade-in"> +<example result="3"><![CDATA[<?php +enum MyEnum { + #[\Deprecated] + case OldCase; +} + +var_dump(MyEnum::OldCase); +?>]]></example> +</div> + +<div effect="fade-in"> +<break lines="2"/> +<list> + <bullet>Can be set on: Methods, Functions, Constants</bullet> + <bullet>The %since% parameter is a free-form string</bullet> + <bullet>Can also be used by PHP's internals</bullet> +</list> +</div> +</slide> diff --git a/slides/internals/php84-dom-callbacks.xml b/slides/internals/php84-dom-callbacks.xml new file mode 100644 index 00000000..d6452e59 --- /dev/null +++ b/slides/internals/php84-dom-callbacks.xml @@ -0,0 +1,4 @@ +<slide> +<title>PHP 8.4: DOM and XSL Callback Improvements</title> + +</slide> diff --git a/slides/internals/php84-grapheme-str-split-2.xml b/slides/internals/php84-grapheme-str-split-2.xml new file mode 100644 index 00000000..60b0169f --- /dev/null +++ b/slides/internals/php84-grapheme-str-split-2.xml @@ -0,0 +1,10 @@ +<slide> +<title>PHP 8.4: grapheme_str_split</title> + +<example result="1"><![CDATA[<?php +foreach (mb_str_split("🙇‍♂️") as $element) { + printf("%8s : %s\n", bin2hex($element), $element); +} +?>]]></example> + +</slide> diff --git a/slides/internals/php84-grapheme-str-split-3.xml b/slides/internals/php84-grapheme-str-split-3.xml new file mode 100644 index 00000000..a4f601bd --- /dev/null +++ b/slides/internals/php84-grapheme-str-split-3.xml @@ -0,0 +1,18 @@ +<slide> +<title>PHP 8.4: grapheme_str_split</title> + +<example result="1"><![CDATA[<?php +foreach (grapheme_str_split("🙇‍♂️") as $element) { + printf("%8s : %s\n", bin2hex($element), $element); +} +?>]]></example> + +<div effect="fade-in"> +<example result="1"><![CDATA[<?php +foreach (grapheme_str_split("Hḁ̢̆llo 🇫🇷!") as $element) { + printf("%20s : %s\n", bin2hex($element), $element); +} +?>]]></example> +</div> + +</slide> diff --git a/slides/internals/php84-grapheme-str-split.xml b/slides/internals/php84-grapheme-str-split.xml new file mode 100644 index 00000000..69343c29 --- /dev/null +++ b/slides/internals/php84-grapheme-str-split.xml @@ -0,0 +1,10 @@ +<slide> +<title>PHP 8.4: grapheme_str_split</title> + +<example result="1"><![CDATA[<?php +foreach (str_split("🙇‍♂️") as $element) { + printf("%8s : %s\n", bin2hex($element), $element); +} +?>]]></example> + +</slide> diff --git a/slides/internals/php84-lazy-objects.xml b/slides/internals/php84-lazy-objects.xml new file mode 100644 index 00000000..22e7a9dd --- /dev/null +++ b/slides/internals/php84-lazy-objects.xml @@ -0,0 +1,9 @@ +<slide> +<title>PHP 8.4: Lazy Objects</title> + +<div effect="fade-in"> +<break lines="5"/> +<image filename="yawn-cat-yawning.gif" attr="https://tenor.com/view/yawn-cat-yawning-yawning-cats-cat-gif-17596768"/> +</div> + +</slide> diff --git a/slides/internals/php84-new-without-parentheses.xml b/slides/internals/php84-new-without-parentheses.xml new file mode 100644 index 00000000..dfc3ead5 --- /dev/null +++ b/slides/internals/php84-new-without-parentheses.xml @@ -0,0 +1,49 @@ +<slide> +<title>PHP 8.4: New Without Parentheses</title> + +<div effect="fade-out"> +<example inline="2"><![CDATA[&lt;?php +class Request implements Psr\Http\Message\RequestInterface +{ + // ... +} + +$request = *(*new Request()*)*->withMethod('GET')->withUri('/hello-world'); +?>]]></example> +</div> + +<div effect="fade-in-out"> +<example><![CDATA[<?php +class Request implements Psr\Http\Message\RequestInterface +{ + // ... +} + +$request = new Request()->withMethod('GET')->withUri('/hello-world'); +?>]]></example> +</div> + +<div effect="fade-in"> +<example><![CDATA[<?php +class MyClass extends ArrayObject +{ + const CONSTANT = 'constant'; + public static $staticProperty = 'staticProperty'; + public static function staticMethod(): string { return 'staticMethod'; } + public $property = 'property'; + public function method(): string { return 'method'; } + public function __invoke(): string { return '__invoke'; } +} + +var_dump( + new MyClass()::CONSTANT, // string(8) "constant" + new MyClass()::$staticProperty, // string(14) "staticProperty" + new MyClass()::staticMethod(), // string(12) "staticMethod" + new MyClass()->property, // string(8) "property" + new MyClass()->method(), // string(6) "method" + new MyClass()(), // string(8) "__invoke" + new MyClass(['value'])[0], // string(5) "value" +); +?>]]></example> +</div> +</slide> diff --git a/slides/internals/php84-policy-repository.xml b/slides/internals/php84-policy-repository.xml index 216b1763..781f632d 100644 --- a/slides/internals/php84-policy-repository.xml +++ b/slides/internals/php84-policy-repository.xml @@ -18,7 +18,7 @@ <list> <bullet>Rewrite documents to be statements of facts instead of intent</bullet> - <bullet>Figure out which information isn't written down authoritively yet</bullet> + <bullet>Figure out which information isn't written down authoritativily yet</bullet> </list> </div> </slide> diff --git a/slides/internals/php84-property-hooks-2.xml b/slides/internals/php84-property-hooks-2.xml new file mode 100644 index 00000000..c6aebd03 --- /dev/null +++ b/slides/internals/php84-property-hooks-2.xml @@ -0,0 +1,4 @@ +<slide> +<title>PHP 8.4: Property Hook Improvements</title> + +</slide> diff --git a/slides/internals/php84-property-hooks-example-1.xml b/slides/internals/php84-property-hooks-example-1.xml new file mode 100644 index 00000000..4d2e0bb7 --- /dev/null +++ b/slides/internals/php84-property-hooks-example-1.xml @@ -0,0 +1,41 @@ +<slide> +<title>PHP 7.4: Typed Properties</title> + +<example><![CDATA[<?php +class ezcMailImapTransportOptions +{ + protected $properties; + + public function __construct( array $options = array() ) + { + $this->uidReferencing = false; + } + + public function __set( $name, $value ) + { + switch ( $name ) { + case 'uidReferencing': + if ( !is_bool( $value ) ) { + throw new ezcBaseValueException( $name, $value, 'bool' ); + } + $this->properties[$name] = $value; + break; + } + } + + public function __isset( $propertyName ) + { + return array_key_exists( $propertyName, $this->properties ); + } + + public function __get( $propertyName ) + { + if ( $this->__isset( $propertyName ) === true ) { + return $this->properties[$propertyName]; + } + throw new ezcBasePropertyNotFoundException( $propertyName ); + } +} +?>]]></example> + +</slide> diff --git a/slides/internals/php84-property-hooks-example-2.xml b/slides/internals/php84-property-hooks-example-2.xml new file mode 100644 index 00000000..ed9f13e9 --- /dev/null +++ b/slides/internals/php84-property-hooks-example-2.xml @@ -0,0 +1,16 @@ +<slide> +<title>PHP 7.4: Typed Properties</title> + +<example inline="2"><![CDATA[&lt;?php +class ezcMailImapTransportOptions +{ + *public bool $uidReferencing;* + + public function __construct( array $options = array() ) + { + $this->uidReferencing = false; + } + +?>]]></example> + +</slide> diff --git a/slides/internals/php84-property-hooks-example-3.xml b/slides/internals/php84-property-hooks-example-3.xml new file mode 100644 index 00000000..e953cdc6 --- /dev/null +++ b/slides/internals/php84-property-hooks-example-3.xml @@ -0,0 +1,41 @@ +<slide> +<title>PHP 8.4: Real Life Example with Property Hooks</title> + +<example><![CDATA[<?php +class ezcMailImapTransportOptions +{ + protected $properties; + + public function __construct( array $options = array() ) + { + $this->listLimit = 0; + } + + public function __set( $name, $value ) + { + switch ( $name ) { + case 'listLimit': + if ( !is_int( $value ) || $value < 0 ) { + throw new ezcBaseValueException( $name, $value, 'int >= 0' ); + } + $this->properties[$name] = $value; + break; + } + } + + public function __isset( $propertyName ) + { + return array_key_exists( $propertyName, $this->properties ); + } + + public function __get( $propertyName ) + { + if ( $this->__isset( $propertyName ) === true ) { + return $this->properties[$propertyName]; + } + throw new ezcBasePropertyNotFoundException( $propertyName ); + } +} +?>]]></example> + +</slide> diff --git a/slides/internals/php84-property-hooks-example-4.xml b/slides/internals/php84-property-hooks-example-4.xml new file mode 100644 index 00000000..be7ae6f5 --- /dev/null +++ b/slides/internals/php84-property-hooks-example-4.xml @@ -0,0 +1,22 @@ +<slide> +<title>PHP 8.4: Real Life Example with Property Hooks</title> + +<example><![CDATA[<?php +class ezcMailImapTransportOptions +{ + public int $listLimit { + set { + if ( $value < 0 ) { + throw new ValueError( "listLimit was set to <{$value}>, but must be >= 0" ); + } + } + } + + public function __construct( array $options = array() ) + { + $this->listLimit = 0; + } +} +?>]]></example> + +</slide> diff --git a/slides/internals/php84-round-modes.xml b/slides/internals/php84-round-modes.xml index 2ef33655..35a3b8ee 100644 --- a/slides/internals/php84-round-modes.xml +++ b/slides/internals/php84-round-modes.xml @@ -2,21 +2,18 @@ <title>PHP 8.4: Rounding Modes</title> <example result="1"><![CDATA[<?php -$modes = [ - PHP_ROUND_CEILING, PHP_ROUND_FLOOR, - PHP_ROUND_AWAY_FROM_ZERO, PHP_ROUND_TOWARD_ZERO, -]; +$values = [ -8.5, -8.45, 8.45, 8.5 ]; -// 8.45 -foreach ($modes as $mode) { - echo ' ' . round(8.45, 1, $mode), " "; -} -echo "\n"; +foreach (RoundingMode::cases() as $mode) { + printf( '%20s: ', $mode->name ); -// -8.45 -foreach ($modes as $mode) { - echo round(-8.45, 1, $mode), " "; + foreach ($values as $value) { + printf( '%5s', round($value, 1, $mode) ); + } + foreach ($values as $value) { + printf( '%5s', round($value, 0, $mode) ); + } + echo "\n"; } -echo "\n"; ]]></example> </slide> diff --git a/slides/internals/yawn-cat-yawning.gif b/slides/internals/yawn-cat-yawning.gif new file mode 100644 index 00000000..98f17ef6 Binary files /dev/null and b/slides/internals/yawn-cat-yawning.gif differ