{"id":16204,"date":"2020-11-27T17:21:35","date_gmt":"2020-11-27T20:21:35","guid":{"rendered":"https:\/\/soloweb.com.br\/blog\/?p=16204"},"modified":"2020-11-27T17:21:35","modified_gmt":"2020-11-27T20:21:35","slug":"php8-conheca-os-recursos-desta-nova-versao","status":"publish","type":"post","link":"https:\/\/soloweb.com.br\/blog\/2020\/11\/27\/php8-conheca-os-recursos-desta-nova-versao\/","title":{"rendered":"PHP8 &#8211; Conhe\u00e7a os recursos desta nova vers\u00e3o"},"content":{"rendered":"<p>Lan\u00e7ada a nova vers\u00e3o da linguagem de programa\u00e7\u00e3o PHP8, ainda mais r\u00e1pida e com novos recursos e melhorias. Confira as novidades dessa importante atualiza\u00e7\u00e3o dessa linguagem.<\/p>\n<p>Caso precise de um ambiente todo pronto, seguro e configurado a SoloWeb faz esse trabalho para voc\u00ea. Acesse <a href=\"https:\/\/soloweb.com.br\">www.soloweb.com.br<\/a><\/p>\n<p>PHP \u00e9 uma das linguagens mais utilizadas em desenvolvimento de sistemas para a web, mas tamb\u00e9m pode ser utilizada em outros ambiente como desktop, linha de comando. \u00c9 uma das linguagens de programa\u00e7\u00e3o de c\u00f3digo aberto (gratuito para todos os programadores que desejam us\u00e1-la) e com uma curva de aprendizado baixa, isto quer dizer f\u00e1cil de aprender e come\u00e7ar a programar.<\/p>\n<p>A \u00daltima vers\u00e3o PHP7 j\u00e1 trazia diversas melhorias a linguagem e com esta nova vers\u00e3o PHP8 n\u00e3o foi diferente, com v\u00e1rias melhorias e aumento de velocidade e outros novos recurso, como:<\/p>\n<ul>\n<li>Union Types<\/li>\n<li>Named Arguments<\/li>\n<li>Match Expressions<\/li>\n<li>Attributes<\/li>\n<li>Constructor Property Promotion<\/li>\n<li>Nullsafe Operator<\/li>\n<li>Weak Maps<\/li>\n<li>Just In Time Compilation<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2>Named arguments (Argumentos nomeados)<\/h2>\n<h2><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-16212 size-full\" src=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/1-1.jpg\" alt=\"\" width=\"1028\" height=\"111\" srcset=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/1-1.jpg 1028w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/1-1-300x32.jpg 300w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/1-1-1024x111.jpg 1024w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/1-1-768x83.jpg 768w\" sizes=\"auto, (max-width: 1028px) 100vw, 1028px\" \/><\/h2>\n<p>&#8211; Especifique apenas os par\u00e2metros obrigat\u00f3rios, pulando os opcionais.<br \/>\n&#8211; Os argumentos s\u00e3o independentes da ordem e auto documentados.<\/p>\n<p>&nbsp;<\/p>\n<h2>Attributes (Atributos)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-16213 size-full\" src=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/2-1.jpg\" alt=\"\" width=\"1044\" height=\"228\" srcset=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/2-1.jpg 1044w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/2-1-300x66.jpg 300w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/2-1-1024x224.jpg 1024w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/2-1-768x168.jpg 768w\" sizes=\"auto, (max-width: 1044px) 100vw, 1044px\" \/><\/p>\n<p>&#8211; Em vez de anota\u00e7\u00f5es PHPDoc, agora voc\u00ea pode usar metadados estruturados com a sintaxe nativa do PHP.<\/p>\n<p>&nbsp;<\/p>\n<h2>Constructor property promotion (Promo\u00e7\u00e3o de propriedade de construtor)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-16211 size-full\" src=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/3.jpg\" alt=\"\" width=\"908\" height=\"428\" srcset=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/3.jpg 908w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/3-300x141.jpg 300w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/3-768x362.jpg 768w\" sizes=\"auto, (max-width: 908px) 100vw, 908px\" \/><\/p>\n<p>&#8211; Menos c\u00f3digo para definir e inicializar propriedades.<\/p>\n<p>&nbsp;<\/p>\n<h2>Union types (Uni\u00e3o de tipos)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-16214 size-full\" src=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/4.jpg\" alt=\"\" width=\"891\" height=\"379\" srcset=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/4.jpg 891w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/4-300x128.jpg 300w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/4-768x327.jpg 768w\" sizes=\"auto, (max-width: 891px) 100vw, 891px\" \/><\/p>\n<p>&#8211; Em vez de anota\u00e7\u00f5es PHPDoc para uma combina\u00e7\u00e3o de tipos, voc\u00ea pode usar declara\u00e7\u00f5es de uni\u00e3o de tipos nativa que s\u00e3o validados em tempo de execu\u00e7\u00e3o.<\/p>\n<p>&nbsp;<\/p>\n<h2>Express\u00e3o match<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-16215 size-full\" src=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/5.jpg\" alt=\"\" width=\"929\" height=\"295\" srcset=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/5.jpg 929w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/5-300x95.jpg 300w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/5-768x244.jpg 768w\" sizes=\"auto, (max-width: 929px) 100vw, 929px\" \/><\/p>\n<p>A nova express\u00e3o match \u00e9 semelhante ao switch e tem os seguintes recursos:<\/p>\n<p>&#8211; Match \u00e9 uma express\u00e3o, o que significa que seu resultado pode ser armazenado em uma vari\u00e1vel ou retornado.<br \/>\n&#8211; Match suporta apenas express\u00f5es de uma linha e n\u00e3o precisa de uma declara\u00e7\u00e3o break;.<br \/>\n&#8211; Match faz compara\u00e7\u00f5es estritas.<\/p>\n<p>&nbsp;<\/p>\n<h2>Nullsafe operator (Operador nullsafe)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-16216 size-full\" src=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/6.jpg\" alt=\"\" width=\"1074\" height=\"371\" srcset=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/6.jpg 1074w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/6-300x104.jpg 300w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/6-1024x354.jpg 1024w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/6-768x265.jpg 768w\" sizes=\"auto, (max-width: 1074px) 100vw, 1074px\" \/><\/p>\n<p>&#8211; Em vez de verificar condi\u00e7\u00f5es nulas, agora voc\u00ea pode usar uma cadeia de chamadas com o novo operador nullsafe. Quando a avalia\u00e7\u00e3o de um elemento da cadeia falha, a execu\u00e7\u00e3o de toda a cadeia \u00e9 abortada e toda a cadeia \u00e9 avaliada como nula.<\/p>\n<p>&nbsp;<\/p>\n<h2>Saner string to number comparisons (Compara\u00e7\u00f5es mais inteligentes entre strings e n\u00fameros)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-16217 size-full\" src=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/7.jpg\" alt=\"\" width=\"803\" height=\"96\" srcset=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/7.jpg 803w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/7-300x36.jpg 300w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/7-768x92.jpg 768w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/7-800x96.jpg 800w\" sizes=\"auto, (max-width: 803px) 100vw, 803px\" \/><\/p>\n<p>&#8211; Ao comparar com uma string num\u00e9rica, o PHP 8 usa uma compara\u00e7\u00e3o num\u00e9rica. Caso contr\u00e1rio, ele converte o n\u00famero em uma string e usa uma compara\u00e7\u00e3o de string.<\/p>\n<p>&nbsp;<\/p>\n<h2>Consistent type errors for internal functions (Erros consistentes para tipos de dados em fun\u00e7\u00f5es internas)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-16218 size-full\" src=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/8.jpg\" alt=\"\" width=\"1052\" height=\"196\" srcset=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/8.jpg 1052w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/8-300x56.jpg 300w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/8-1024x191.jpg 1024w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/8-768x143.jpg 768w\" sizes=\"auto, (max-width: 1052px) 100vw, 1052px\" \/><\/p>\n<p>&#8211; A maioria das fun\u00e7\u00f5es internas agora lan\u00e7am uma exce\u00e7\u00e3o Error se a valida\u00e7\u00e3o do par\u00e2metro falhar.<\/p>\n<p>&nbsp;<\/p>\n<h2>Compila\u00e7\u00e3o Just-In-Time<\/h2>\n<p>PHP 8 apresenta dois motores de compila\u00e7\u00e3o JIT. Tracing JIT, o mais promissor dos dois, mostra desempenho cerca de 3 vezes melhor em benchmarks sint\u00e9ticos e melhoria de 1,5 a 2 vezes em alguns aplicativos espec\u00edficos de longa execu\u00e7\u00e3o. O desempenho t\u00edpico das aplica\u00e7\u00f5es est\u00e1 no mesmo n\u00edvel do PHP 7.4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-16219 size-full\" src=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/9.jpg\" alt=\"\" width=\"914\" height=\"576\" srcset=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/9.jpg 914w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/9-300x189.jpg 300w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2020\/11\/9-768x484.jpg 768w\" sizes=\"auto, (max-width: 914px) 100vw, 914px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2>Melhorias no sistema de tipo e tratamento de erros<\/h2>\n<p>&#8211; Verifica\u00e7\u00f5es de tipo mais r\u00edgidas para operadores aritm\u00e9ticos \/ bit a bit<br \/>\n&#8211; Valida\u00e7\u00e3o de m\u00e9todo abstrato em traits<br \/>\n&#8211; Assinaturas corretas de m\u00e9todos m\u00e1gicos<br \/>\n&#8211; Avisos de motor reclassificados<br \/>\n&#8211; Erro fatal para assinaturas de m\u00e9todo incompat\u00edveis<br \/>\n&#8211; O operador @ n\u00e3o silencia mais os erros fatais.<br \/>\n&#8211; Heran\u00e7a com m\u00e9todos privados<br \/>\n&#8211; Tipo mixed<br \/>\n&#8211; Tipo de retorno static<br \/>\n&#8211; Tipagem de fun\u00e7\u00f5es internas Discuss\u00e3o por email<br \/>\n&#8211; Objetos opacos em vez de recursos para Curl, Gd, Sockets, OpenSSL, XMLWriter, e XML extens\u00f5es<\/p>\n<p>&nbsp;<\/p>\n<h2>Outros ajustes e melhorias de sintaxe<\/h2>\n<p>&#8211; Permitir v\u00edrgula no final da lista de par\u00e2metros e listas de uso em closures<br \/>\n&#8211; Catches sem vari\u00e1vel na captura de exce\u00e7\u00e3o<br \/>\n&#8211; Ajustes de sintaxe para vari\u00e1veis<br \/>\n&#8211; Tratamento de nomes de namespace como token \u00fanico<br \/>\n&#8211; Throw como express\u00e3o<br \/>\n&#8211; Permitir ::class em objetos<\/p>\n<h2>Novas classes, interfaces e fun\u00e7\u00f5es<\/h2>\n<p>&#8211; Classe Weak Map<br \/>\n&#8211; Interface Stringable<br \/>\n&#8211; str_contains(), str_starts_with(), str_ends_with()<br \/>\n&#8211; fdiv()<br \/>\n&#8211; get_debug_type()<br \/>\n&#8211; get_resource_id()<br \/>\n&#8211; token_get_all() implementado com objetos<\/p>\n<p>&nbsp;<\/p>\n<p>Como vimos muitas melhorias nesta nova vers\u00e3o do PHP, agora \u00e9 colocar os projetos em dias com essas novas features, e j\u00e1 sabe precisando de ajuda com seu novo PHP8 ou com configura\u00e7\u00f5es de servidores ou hospedagem conte conosco. Acesse <a href=\"https:\/\/soloweb.com.br\">www.soloweb.com.br<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lan\u00e7ada a nova vers\u00e3o da linguagem de programa\u00e7\u00e3o PHP8, ainda mais r\u00e1pida e com novos recursos e melhorias. Confira as<\/p>\n","protected":false},"author":4,"featured_media":16220,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_editorskit_title_hidden":false,"_editorskit_reading_time":0,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","footnotes":""},"categories":[106,114,118,132],"tags":[158,159,70,160],"class_list":["post-16204","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-desenvolvimento","category-dicas","category-performance","category-php","tag-jit","tag-nova-versao","tag-php","tag-php8"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PHP8 - Conhe\u00e7a os recursos desta nova vers\u00e3o - SOLOWEB Tecnologia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/soloweb.com.br\/blog\/2020\/11\/27\/php8-conheca-os-recursos-desta-nova-versao\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PHP8 - Conhe\u00e7a os recursos desta nova vers\u00e3o - SOLOWEB Tecnologia\" \/>\n<meta property=\"og:description\" content=\"Lan\u00e7ada a nova vers\u00e3o da linguagem de programa\u00e7\u00e3o PHP8, ainda mais r\u00e1pida e com novos recursos e melhorias. 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