{"id":2006,"date":"2023-05-12T11:14:15","date_gmt":"2023-05-12T09:14:15","guid":{"rendered":"https:\/\/close.technology\/en\/?p=2006"},"modified":"2023-05-12T11:23:47","modified_gmt":"2023-05-12T09:23:47","slug":"update-php-8-1","status":"publish","type":"post","link":"https:\/\/close.technology\/en\/blog\/update-php-8-1\/","title":{"rendered":"Upgrade all our websites to PHP 8.1 and WordPress 6.2"},"content":{"rendered":"\n<p>The new version of PHP 8.1 is coming on strong and brings <strong>quite important new features<\/strong>, and in Close-technology we have joined all of them. <\/p>\n\n\n\n<p>For this reason, we have compiled a list of the most interesting ones and how they affect websites. Keep reading!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Advantages of upgrading from PHP 7 to PHP 8.1<\/h2>\n\n\n\n<p>Next we will talk about the main functionalities and features of this PHP version and the advantages it brings. <\/p>\n\n\n\n<p>The <strong>simplification of the code and adapt to new developments on the Internet<\/strong> are the two main advantages of this version and in which we focus on <a href=\"https:\/\/close.technology\/servicios\/desarrollo-de-paginas-webs\/\" data-type=\"service\" data-id=\"3145\">web development<\/a> to get the best performance on the web.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">All this is due to WordPress 6.2, a new update.<\/h2>\n\n\n\n<p>This new update of PHP 8.1, is possible because, in Close-Technology, we develop websites with WordPress, which gives us great advantages such as <strong>knowing at the moment when a website is down, requiring reestablish it<\/strong>.<\/p>\n\n\n\n<p><a href=\"https:\/\/close.marketing\/blog\/wordpress-blog\/wordpress-6-2\/\" target=\"_blank\" rel=\"noopener\">WordPress 6.2<\/a> is the latest update of this CMS that has brought us a lot of new features that we have already applied in all our clients&#8217; websites. <\/p>\n\n\n\n<p>WordPress 6.2 and PHP 8.1 are updates that <strong>will be made to those customers who perform maintenance of your website with us<\/strong>. <\/p>\n\n\n\n<p>There are many advantages offered by this new update, what are you waiting for to join the change?<\/p>\n\n\n\n<p>For more information, do not hesitate to<a href=\"https:\/\/close.technology\/contacto\/\" data-type=\"page\" data-id=\"1638\"> contact us<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Before we start, what is PHP 8.1?<\/h2>\n\n\n\n<p>PHP is a programming language that is mainly adapted to web development, and on which WordPress is based. Its latest update, 8.1, contains a lot of new features, optimizations and performance improvements. <\/p>\n\n\n\n<p>Some of the <strong>most important new features<\/strong> are: <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Enumerations<\/li>\n\n\n\n<li>First-class Callable Syntax<\/li>\n\n\n\n<li><strong>The single-reading classes<\/strong>, which allows to have an immutable class, that is to say, that does not allow the modification of this after its creation. <\/li>\n\n\n\n<li>New expression in constructor<\/li>\n\n\n\n<li>Pure intersection types<\/li>\n\n\n\n<li>Fibers<\/li>\n\n\n\n<li>Never return type<\/li>\n\n\n\n<li>Final class constants<\/li>\n\n\n\n<li>Explicit octal numeric notation<\/li>\n\n\n\n<li>Array destructuring support<\/li>\n\n\n\n<li>Performance improvements<\/li>\n\n\n\n<li>New classes, interfaces and functions<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/close.technology\/wp-content\/uploads\/2023\/04\/php-8-1.png\" alt=\"Php 8.1\" class=\"wp-image-5193\" width=\"535\" height=\"356\"\/><\/figure><\/div>\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">1. Enumerations<\/h3>\n\n\n\n<p>An enum is a data type used to define possible values, such as &#8220;true&#8221; or &#8220;false&#8221;.<\/p>\n\n\n\n<p>In general, enums are a useful way to make our <strong>code cleaner, reduce errors and make it easier to read<\/strong>.<\/p>\n\n\n\n<p>With the PHP 8.1 update, this is no longer the case:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>{ class Status\n{\n    const DRAFT = 'draft';\n    const PUBLISHED = 'published';\n    const ARCHIVED = 'archived';\n}\nfunction acceptStatus(string $status) {...}<\/code><\/pre>\n\n\n\n<p>To this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>{ enum Status.\n{\n    case Draft;\n    case Published;\n    case Archived;\n}\nfunction acceptStatus(Status $status) {...}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2. Fibers<\/h3>\n\n\n\n<p>This PHP 8.1 update, allows to manage the possible interruptions in the flow of your code, this means that it <strong>controls the versatility of the page<\/strong>, it allows that if several people work simultaneously in the programming of a page, these can carry out their work without being lost or damaged, creating a <strong>multiwork system<\/strong>.<\/p>\n\n\n\n<p>With the upgrade, it goes from this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$httpClient-&gt;request('https:\/\/example.com\/')\n        -&gt;then(function (Response $response) {\n            return $response-&gt;getBody()-&gt;buffer();\n        })\n        -&gt;then(function (string $responseBody) {\n            print json_decode($responseBody)['code'];\n        });<\/code><\/pre>\n\n\n\n<p>To this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$response = $httpClient-&gt;request('https:\/\/example.com\/');\nprint json_decode($response-&gt;getBody()-&gt;buffer())['code'];<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3. Never return type<\/h3>\n\n\n\n<p>The <strong>Never<\/strong> return type indicates that a function is terminated and does not return any other value, for example, if in the function &#8220;pen&#8221; you enter &#8220;blue&#8221;, &#8220;red&#8221;, and &#8220;black&#8221;, none of the three can be found in any function other than &#8220;pen&#8221;.<\/p>\n\n\n\n<p>With the PHP 8.1 update, this is no longer the case:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>function redirect(string $uri) {\n    header('Location: ' . $uri);\n    exit();\n}\n \nfunction redirectToLoginPage() {\n    redirect('\/login');\n    echo 'Hello'; \/\/ &lt;- dead code\n}<\/code><\/pre>\n\n\n\n<p>To this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>function redirect(string $uri): never {\n    header('Location: ' . $uri);\n    exit();\n}\n \nfunction redirectToLoginPage(): never {\n    redirect('\/login');\n    echo 'Hello'; \/\/ &lt;- dead code detected by static analysis \n}<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/close.technology\/wp-content\/uploads\/2023\/05\/php-8-1-close.png\" alt=\"Php 8 1 Close\" class=\"wp-image-5223\" width=\"480\" height=\"320\"\/><\/figure><\/div>\n\n\n<div style=\"height:33px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">4. New expression in constructor<\/h3>\n\n\n\n<p>This feature of PHP 8.1, allows using objects as default parameter values, static variables and global constants, as well as in attribute arguments. This means that it <strong>helps web management, making it more organized<\/strong>.<\/p>\n\n\n\n<p>With the update, it goes beyond this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>{ class Service \n{\n    private Logger $logger;\n \n    public function __construct(\n        ?Logger $logger = null,\n    ) {\n        $this-&gt;logger = $logger ?? new NullLogger();\n    }\n}<\/code><\/pre>\n\n\n\n<p>To this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Service \n{\n    private Logger $logger;\n    \n    public function __construct(\n        Logger $logger = new NullLogger(),\n    ) {\n        $this-&gt;logger = $logger;\n    }\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">5. Read-only properties<\/h3>\n\n\n\n<p>With this new update, you cannot edit the content once the read-only mode is started, i.e. the <strong>content is kept intact until the read-only mode is finished<\/strong>.<\/p>\n\n\n\n<p>With the PHP 8.1 update, this is no longer the case:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>{ class BlogData\n{\n    private Status $status;\n   \n    public function __construct(Status $status) \n    {\n        $this-&gt;status = $status;\n    }\n    \n    public function getStatus(): Status \n    {\n        return $this-&gt;status;    \n    }\n}<\/code><\/pre>\n\n\n\n<p>To this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Demo {\n \n    public string $Mutable;\n \n    public readonly string $Immutable;\n \n    public function __construct(\n        string $Mutable,\n        string $Immutable) {\n \n        $this -&gt; Mutable = $Mutable;\n        $this -&gt; Immutable = $Immutable;\n    }\n \n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">6. First-class Callable Syntax<\/h3>\n\n\n\n<p>It serves to replace existing encodings that use strings and arrays. This means that it <strong>simplifies the programmers&#8217; language to make it much simpler<\/strong>.<\/p>\n\n\n\n<p>With the update, it goes from this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$foo = [$this, 'foo'];\n\n$fn = Closure::fromCallable('strlen');<\/code><\/pre>\n\n\n\n<p>To this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$foo = $this-&gt;foo(...);\n\n$fn = strlen(...);<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/close.technology\/wp-content\/uploads\/2023\/04\/php-8-1-actualizacion.png\" alt=\"Php 8.1 Actualizacion\" class=\"wp-image-5197\" width=\"450\" height=\"300\"\/><\/figure><\/div>\n\n\n<div style=\"height:32px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/close.technology\/contacto\/\">contact US<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The new PHP 8.1 update brings quite important new features, and we have joined all of them. We bring you here some of them.<\/p>\n","protected":false},"author":73,"featured_media":2131,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"editor_notices":[],"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2006","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"_links":{"self":[{"href":"https:\/\/close.technology\/en\/wp-json\/wp\/v2\/posts\/2006","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/close.technology\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/close.technology\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/close.technology\/en\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/close.technology\/en\/wp-json\/wp\/v2\/comments?post=2006"}],"version-history":[{"count":5,"href":"https:\/\/close.technology\/en\/wp-json\/wp\/v2\/posts\/2006\/revisions"}],"predecessor-version":[{"id":2130,"href":"https:\/\/close.technology\/en\/wp-json\/wp\/v2\/posts\/2006\/revisions\/2130"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/close.technology\/en\/wp-json\/wp\/v2\/media\/2131"}],"wp:attachment":[{"href":"https:\/\/close.technology\/en\/wp-json\/wp\/v2\/media?parent=2006"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/close.technology\/en\/wp-json\/wp\/v2\/categories?post=2006"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/close.technology\/en\/wp-json\/wp\/v2\/tags?post=2006"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}