{"id":98655,"date":"2020-11-29T02:42:44","date_gmt":"2020-11-29T00:42:44","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/php-8-0-0"},"modified":"2020-11-29T02:42:44","modified_gmt":"2020-11-29T00:42:44","slug":"php-8-0-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/php-8-0-0","title":{"rendered":"PHP 8.0.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Il team di sviluppo PHP ha annunciato il rilascio della nuova versione del linguaggio \u2014 PHP 8.0.0.<\/p>\n<p>Miglioramenti e nuove funzionalit\u00e0:<\/p>\n<ul>\n<li>\n<p>Tipi unione. Invece delle annotazioni PHPDoc per combinare i tipi, ora \u00e8 possibile utilizzare le dichiarazioni native di tipo unione, che vengono verificate durante l'esecuzione.<\/p>\n<\/li>\n<li>\n<p>Argomenti nominati. Ora \u00e8 possibile utilizzare metadati strutturati con la sintassi nativa di PHP al posto delle annotazioni PHPDoc.<\/p>\n<\/li>\n<li>\n<p>Operatore nullsafe. Anzich\u00e9 effettuare un controllo su null, ora \u00e8 possibile utilizzare la catena di chiamate con il nuovo operatore nullsafe. Quando il controllo di un elemento nella catena fallisce, l'esecuzione di tutta la catena viene interrotta e il risultato \u00e8 null.<\/p>\n<\/li>\n<li>\n<p>Compilazione just-in-time. In PHP 8 sono stati introdotti due motori JIT. Il Tracing JIT, il pi\u00f9 promettente dei due, mostra un miglioramento delle prestazioni: tre volte su test sintetici e 1,5-2 volte su alcune applicazioni specifiche. La tipica prestazione di un'applicazione \u00e8 paragonabile a quella di PHP 7.4.<\/p>\n<\/li>\n<\/ul>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"http:\/\/www.linux.org.ru\/news\/development\/16026169\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u0430\u043d\u0434\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 PHP \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0435 \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u044f\u0437\u044b\u043a\u0430 \u2014 PHP 8.0.0. \u0423\u043b\u0443\u0447\u0448\u0435\u043d\u0438\u044f \u0438 \u043d\u043e\u0432\u044b\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438: Union Types. \u0412\u043c\u0435\u0441\u0442\u043e \u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u0439 PHPDoc \u0434\u043b\u044f \u043a\u043e\u043c\u0431\u0438\u043d\u0430\u0446\u0438\u0438 \u0442\u0438\u043f\u043e\u0432 \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u043d\u0430\u0442\u0438\u0432\u043d\u044b\u0435 \u043e\u0431\u044a\u044f\u0432\u043b\u0435\u043d\u0438\u044f \u0442\u0438\u043f\u0430 union, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u044e\u0442\u0441\u044f \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f. \u0418\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u044b. \u0412\u043c\u0435\u0441\u0442\u043e \u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u0439 PHPDoc \u0442\u0435\u043f\u0435\u0440\u044c \u043c\u043e\u0436\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u043c\u0435\u0442\u0430\u0434\u0430\u043d\u043d\u044b\u0435 \u0441 \u0440\u043e\u0434\u043d\u044b\u043c \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441\u043e\u043c PHP. \u041e\u043f\u0435\u0440\u0430\u0442\u043e\u0440 nullsafe. \u0412\u043c\u0435\u0441\u0442\u043e \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043d\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-98655","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - 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