{"id":3883,"date":"2022-05-19T11:20:21","date_gmt":"2022-05-19T11:20:21","guid":{"rendered":"http:\/\/the-codest.localhost\/blog\/why-do-we-need-symfony-polyfill-and-why-we-shouldnt\/"},"modified":"2026-04-28T14:07:09","modified_gmt":"2026-04-28T14:07:09","slug":"af-hverju-thurfum-vid-symfony-polyfill-og-af-hverju-aettum-vid-ekki-ad-nota-thad","status":"publish","type":"post","link":"https:\/\/thecodest.co\/is\/blog\/why-do-we-need-symfony-polyfill-and-why-we-shouldnt\/","title":{"rendered":"Af hverju \u00feurfum vi\u00f0 Symfony Polyfill (\u2026 og af hverju \u00e6ttum vi\u00f0 ekki a\u00f0 nota \u00fea\u00f0)"},"content":{"rendered":"

\u00cd flestum n\u00fat\u00edma PHP<\/a> verkefni<\/strong>, munt \u00fe\u00fa taka eftir mikilli h\u00e1\u00f0 \u00e1 Symfony Polyfill<\/a> b\u00f3kasafn. \u00cd \u00feessari grein munum vi\u00f0 \u00fatsk\u00fdra ekki a\u00f0eins hvernig \u00fea\u00f0 virkar og hvernig \u00fea\u00f0 tengist Symfony-verkefni<\/strong>, en vi\u00f0 munum einnig kafa d\u00fdpra \u00ed hugmyndina um vandam\u00e1li\u00f0 sem \u00fea\u00f0 reynir a\u00f0 leysa.<\/p>\n

Sm\u00e1 saga<\/h2>\n

PHP<\/strong> var \u00ed sl\u00e6mu \u00e1standi \u00ed nokkurn t\u00edma. \u00dea\u00f0 var \u00e1ri\u00f0 2005 \u00feegar Andrei Zmievski h\u00f3f a verkefni<\/a> a\u00f0 koma me\u00f0 innf\u00e6dda Unicode-stu\u00f0ning fyrir PHP<\/strong> vegna misjafna umsagna og margra \u00e1hyggja um a\u00f0 PHP<\/strong> er a\u00f0 fara \u00ed ranga \u00e1tt. \u00der\u00f3un PHP<\/strong> 6.x h\u00f3fst. En \u00fea\u00f0 var aldrei kl\u00e1ra\u00f0 \u2013 og \u00fea\u00f0 er saga fyrir annan dag. T\u00edu \u00e1rum s\u00ed\u00f0ar, einhvers sta\u00f0ar \u00e1 \u00e1runum 2014 og 2015, h\u00f3fu Dmitry Stogov, Xinchen Hui og Nikita Popov phpng<\/code> \u2013 verkefni sem hagr\u00e6ddi og endurskipulag\u00f0i innri Zend-v\u00e9lina sem notu\u00f0 var af PHP<\/strong>.<\/p>\n

>_ PHP 7 f\u00e6ddist<\/em><\/h4>\n

Og \u00e1 undanf\u00f6rnum \u00e1rum, PHP<\/strong> Er a\u00f0 vaxa hra\u00f0ar en nokkru sinni fyrr, n\u00fa \u00ed st\u00f6\u00f0ugri \u00fatg\u00e1fu 8.1.<\/p>\n

\"mynd\"<\/p>\n

Vegna hra\u00f0rar \u00fer\u00f3unar n\u00fdrra eiginleika \u00ed forritunarm\u00e1li \u00feurftu ekki a\u00f0eins forritarar a\u00f0 a\u00f0lagast \u00feessum breytingum, heldur einnig innvi\u00f0a- og h\u00fdsingar\u00fej\u00f3nustuveitendur.<\/p>\n

Til a\u00f0 tryggja a\u00f0 vi\u00f0, forritararnir, getum nota\u00f0 n\u00fdjustu og bestu eiginleika \u00e1sts\u00e6ls forritunarm\u00e1ls okkar Symfony Polyfill<\/strong> Verkefni\u00f0 var f\u00e6tt.<\/p>\n

Symfony Polyfill og virkni \u00feess<\/h2>\n
\n

\u00deetta verkefni flytur inn eiginleika sem finnast \u00ed n\u00fdjustu \u00fatg\u00e1funni. PHP-\u00fatg\u00e1fur<\/strong> og veitir samh\u00e6fisl\u00f6g fyrir nokkrar vi\u00f0b\u00e6tur og fall. \u00dea\u00f0 er \u00e6tla\u00f0 a\u00f0 nota \u00feegar flytjanleiki yfir PHP-\u00fatg\u00e1fur<\/strong> og framlenging er \u00e6skileg.<\/p>\n<\/blockquote>\n

\u00deetta er hreinn l\u00fdsing \u00e1 Symfony Polyfill<\/a> En hva\u00f0 \u00fe\u00fd\u00f0ir \u00fea\u00f0? <\/p>\n

Vegna \u00feess a\u00f0 \u00fea\u00f0 \u00fer\u00f3ast hratt PHP tungum\u00e1l<\/strong> og vegna \u00f3skipulag\u00f0rar hugb\u00fana\u00f0arh\u00f6nnunar net\u00fej\u00f3nustuveitenda, hafa flestir forritarar sta\u00f0i\u00f0 frammi fyrir einf\u00f6ldu vali:<\/p>\n