{"id":5129,"date":"2024-06-11T13:50:36","date_gmt":"2024-06-11T11:50:36","guid":{"rendered":"https:\/\/www.websupport.cz\/blog\/?p=5129"},"modified":"2025-03-11T21:18:30","modified_gmt":"2025-03-11T20:18:30","slug":"proc-byste-nemeli-pouzivat-stare-verze-php","status":"publish","type":"post","link":"https:\/\/www.websupport.cz\/blog\/2024\/06\/proc-byste-nemeli-pouzivat-stare-verze-php\/","title":{"rendered":"Pro\u010d byste nem\u011bli pou\u017e\u00edvat star\u00e9 verze PHP"},"content":{"rendered":"\n<p><strong>Ka\u017ed\u00fd rok kon\u010d\u00ed ofici\u00e1ln\u00ed podpora nejstar\u0161\u00ed z podporovan\u00fdch verz\u00ed PHP. P\u0159in\u00e1\u0161\u00edme v\u00e1m pohled na na\u0161e nejbli\u017e\u0161\u00ed kroky a n\u011bkolik d\u016fvod\u016f, pro\u010d byste nem\u011bli pou\u017e\u00edvat star\u00e9 verze PHP. Pl\u00e1nujeme toti\u017e v\u00fdrazn\u00e9 zm\u011bny.<\/strong><\/p>\n\n\n\n<p><strong>V tomto \u010dl\u00e1nku najdete:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"#zivotnicyklus\">Jak vypad\u00e1 \u017eivotn\u00ed cyklus PHP<\/a><\/li>\n\n\n\n<li><a href=\"#php-u-nas-a-ve-svete\">P\u0159ehled pou\u017e\u00edvan\u00fdch verz\u00ed PHP ve sv\u011bt\u011b i u n\u00e1s<\/a><\/li>\n\n\n\n<li><a href=\"#duvody-pouzivani\">Nej\u010dast\u011bj\u0161\u00ed d\u016fvody pou\u017e\u00edv\u00e1n\u00ed star\u00fdch verz\u00ed PHP<\/a><\/li>\n\n\n\n<li><a href=\"#rizika-starych-php\">Nedostatky star\u00fdch verz\u00ed PHP<\/a><\/li>\n\n\n\n<li><a href=\"#plan-ukonceni-starych-php\">Pl\u00e1n ukon\u010den\u00ed podpory vybran\u00fdch verz\u00ed PHP ve Websupportu<\/a><\/li>\n\n\n\n<li><a href=\"#jak-aktualizovat-php\">Informace o tom, jak aktualizovat PHP<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"zivotnicyklus\">\u017divotn\u00ed cyklus PHP<\/h2>\n\n\n\n<p>PHP je nejpou\u017e\u00edvan\u011bj\u0161\u00ed skriptovac\u00ed jazyk pro web. <a href=\"https:\/\/w3techs.com\/technologies\/details\/pl-php\">Podle W3Techs<\/a> ho pou\u017e\u00edv\u00e1 kolem 76 % web\u016f. Na v\u011bt\u0161in\u011b sd\u00edlen\u00fdch hosting\u016f p\u0159edstavuje jedinou dostupnou mo\u017enost. I u n\u00e1s, zat\u00edm. Pro pot\u0159eby tohoto \u010dl\u00e1nku si m\u016f\u017eete PHP p\u0159edstavit jako softwarov\u00e9 prost\u0159ed\u00ed, kter\u00e9 zaji\u0161\u0165uje fungov\u00e1n\u00ed webu, nap\u0159\u00edklad redak\u010dn\u00edho syst\u00e9mu WordPress, kter\u00fd je cel\u00fd napsan\u00fd v jazyce PHP.<\/p>\n\n\n\n<p>Stejn\u011b jako ka\u017ed\u00fd software m\u00e1 i PHP sv\u016fj \u017eivotn\u00ed cyklus. Pravideln\u011b vych\u00e1zej\u00ed nov\u011bj\u0161\u00ed verze, kter\u00e9 p\u0159id\u00e1vaj\u00ed nov\u00e9 funkce a opravuj\u00ed chyby a nedostatky t\u011bch p\u0159edchoz\u00edch. Nov\u00e9 verze vych\u00e1zej\u00ed p\u0159ibli\u017en\u011b ka\u017ed\u00fd rok a jejich podpora trv\u00e1 v\u011bt\u0161inou 2 roky. Probl\u00e9m, p\u0159ed kter\u00fdm stoj\u00edme, je, \u017ee v\u011bt\u0161ina web\u016f b\u011b\u017e\u00ed na star\u00fdch verz\u00edch PHP, kter\u00e9 ji\u017e n\u011bkolik let nejsou ofici\u00e1ln\u011b podporovan\u00e9.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2024\/06\/Snimka-obrazovky-2024-05-21-o-13.37.17.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"492\" src=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2024\/06\/Snimka-obrazovky-2024-05-21-o-13.37.17-1024x492.png\" alt=\"\" class=\"wp-image-5135\" srcset=\"https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/Snimka-obrazovky-2024-05-21-o-13.37.17-1024x492.png 1024w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/Snimka-obrazovky-2024-05-21-o-13.37.17-300x144.png 300w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/Snimka-obrazovky-2024-05-21-o-13.37.17-768x369.png 768w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/Snimka-obrazovky-2024-05-21-o-13.37.17-1536x739.png 1536w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/Snimka-obrazovky-2024-05-21-o-13.37.17-1200x577.png 1200w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/Snimka-obrazovky-2024-05-21-o-13.37.17.png 1942w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Podporovan\u00e9 verze PHP podle PHP.net, kv\u011bten 2024<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"php-u-nas-a-ve-svete\">Jak to vypad\u00e1 u n\u00e1s a ve sv\u011bt\u011b<\/h2>\n\n\n\n<p>Na uk\u00e1zku glob\u00e1ln\u00edho trendu m\u016f\u017eeme pou\u017e\u00edt \u017eiv\u00e9 <a href=\"https:\/\/wordpress.org\/about\/stats\/\">statistiky z wordpress.org<\/a>. Mezi v\u0161emi WordPress weby pou\u017e\u00edv\u00e1 pouze p\u0159ibli\u017en\u011b 30 % ofici\u00e1ln\u011b podporovanou verzi PHP. Skoro 17 % pou\u017e\u00edv\u00e1 brzy nepodporovanou verzi PHP 8.1, a zb\u00fdvaj\u00edc\u00edch 53 % pou\u017e\u00edv\u00e1 PHP 8.0 nebo star\u0161\u00ed. Na tuto nep\u0159\u00edznivou situaci ji\u017e v minulosti <a href=\"https:\/\/yoast.com\/yoast-seo-4-5\/\">upozornili <\/a>nap\u0159\u00edklad tv\u016frci popul\u00e1rn\u00edho pluginu Yoast SEO.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2024\/06\/php_wordpress.png\"><img loading=\"lazy\" decoding=\"async\" width=\"533\" height=\"351\" src=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2024\/06\/php_wordpress.png\" alt=\"\" class=\"wp-image-5141\" srcset=\"https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/php_wordpress.png 533w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/php_wordpress-300x198.png 300w\" sizes=\"auto, (max-width: 533px) 100vw, 533px\" \/><\/a><figcaption class=\"wp-element-caption\"><p>Aktu\u00e1ln\u011b vyu\u017e\u00edvan\u00e9 verze PHP na v\u0161ech WordPress webech, zdroj wordpress.org<\/p><\/figcaption><\/figure>\n<\/div>\n\n\n<p>Podobnou situaci vid\u00edme i na na\u0161\u00ed infrastruktu\u0159e. Statistiky z jara 2024 v\u00e1s mo\u017en\u00e1 p\u0159ekvap\u00ed, ale <strong>p\u0159ibli\u017en\u011b 75 % na\u0161ich u\u017eivatel\u016f pou\u017e\u00edvalo na sv\u00e9m hostingu jednu ze zastaral\u00fdch verz\u00ed PHP<\/strong> 5.2 \u2013 8.0. Dominovala p\u0159edev\u0161\u00edm PHP 5.6 (d\u016fvody n\u00ed\u017ee). Koncem roku se k nim p\u0159id\u00e1 dal\u0161\u00ed skupina, kter\u00e1 pou\u017e\u00edv\u00e1 verzi PHP 8.1. Ofici\u00e1ln\u00ed podpora verze 5.6 skon\u010dila v prosinci 2018.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2024\/06\/php_wp.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"731\" height=\"441\" src=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2024\/06\/php_wp.jpeg\" alt=\"\" class=\"wp-image-5144\" srcset=\"https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/php_wp.jpeg 731w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/php_wp-300x181.jpeg 300w\" sizes=\"auto, (max-width: 731px) 100vw, 731px\" \/><\/a><figcaption class=\"wp-element-caption\">P\u0159ehled pou\u017eit\u00fdch verz\u00ed PHP na Websupport infrastruktu\u0159e, jaro 2024 <\/figcaption><\/figure>\n<\/div>\n\n\n<p>Tento trend nevypad\u00e1 v\u016fbec optimisticky, proto jsme se rozhodli ho zlep\u0161it a <strong>p\u0159esunout co nejv\u00edce web\u016f a u\u017eivatel\u016f na nov\u011bj\u0161\u00ed verze<\/strong> \u2013 nap\u0159\u00ed\u010d v\u0161emi zem\u011bmi, kde p\u016fsob\u00edme. A pokud se n\u00e1m poda\u0159\u00ed zlep\u0161it stav i mimo na\u0161e hostingy, profitovat z toho bude cel\u00e1 komunita.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"duvody-pouzivani\"><strong>Nej\u010dast\u011bj\u0161\u00ed d\u016fvody pou\u017e\u00edv\u00e1n\u00ed star\u00fdch verz\u00ed PHP<\/strong><\/h2>\n\n\n\n<p>Z praxe vid\u00edme nej\u010dast\u011bji tyto d\u016fvody, pro\u010d u\u017eivatel\u00e9 pou\u017e\u00edvaj\u00ed star\u00e9 verze PHP:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Majitel\u00e9 web\u016f o tom nev\u011bd\u00ed nebo to ne\u0159e\u0161\u00ed.<\/strong> Ve v\u011bt\u0161in\u011b p\u0159\u00edpad\u016f je to pln\u011b akceptovateln\u00e9 \u2013 \u0159e\u0161en\u00ed podobn\u00fdch v\u011bc\u00ed o\u010dek\u00e1vaj\u00ed od sv\u00fdch v\u00fdvoj\u00e1\u0159\u016f, spr\u00e1vc\u016f webu, \u010di p\u0159\u00edmo od hostingu. Proto m\u00e1 PHP 5.6 nejv\u011bt\u0161\u00ed zastoupen\u00ed na na\u0161ich hostingech \u2013 dlouho jsme tuto verzi nab\u00edzeli jako v\u00fdchoz\u00ed a u\u017eivatel\u00e9 ji nikdy nezm\u011bnili.<\/li>\n\n\n\n<li><strong>Zaji\u0161t\u011bn\u00ed kompatibility na stran\u011b v\u00fdvoj\u00e1\u0159\u016f\/spr\u00e1vc\u016f vy\u017eaduje \u010das na aktualizaci redak\u010dn\u00edch syst\u00e9m\u016f, plugin\u016f a n\u00e1sledn\u00e9 testov\u00e1n\u00ed.<\/strong> Pokud jste si p\u0159ed lety nechali vyrobit web a d\u00e1le to ne\u0159e\u0161ili, aktualizace na nov\u011bj\u0161\u00ed verze PHP nemus\u00ed b\u00fdt v\u016fbec trivi\u00e1ln\u00ed a levn\u00e1. Men\u0161\u00ed probl\u00e9m to p\u0159edstavuje pro modern\u00ed open-source syst\u00e9my, kter\u00e9 v\u011bt\u0161inou sta\u010d\u00ed \u201ejen\u201c aktualizovat. Z graf\u016f v\u00fd\u0161e je ale vid\u011bt, \u017ee ani tohle \u010dasto nesta\u010d\u00ed.<\/li>\n\n\n\n<li><strong>V\u011bt\u0161ina hosting\u016f se t\u00e9to t\u00e9matice dlouhodob\u011b vyh\u00fdbala.<\/strong> V\u010detn\u011b n\u00e1s. D\u016fvod je prost\u00fd \u2013 proto\u017ee je pro majitele web\u016f problematick\u00e9 zajistit kompatibilitu web\u016f, vynucen\u00e1 aktualizace ze strany hostingu m\u016f\u017ee zp\u016fsobit nefunk\u010dnost tis\u00edc\u016f webov\u00fdch str\u00e1nek. A to nechceme ani my, ani majitel\u00e9 web\u016f. S dostate\u010dn\u00fdm p\u0159edstihem proto na tento probl\u00e9m za\u010d\u00edn\u00e1me aktivn\u011b upozor\u0148ovat.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"rizika-starych-php\"><strong>Rizika a nev\u00fdhody star\u00fdch verz\u00ed PHP<\/strong><\/h2>\n\n\n\n<p>Z pohledu u\u017eivatele star\u00e9 verze PHP zaost\u00e1vaj\u00ed oproti nov\u00fdm p\u0159edev\u0161\u00edm v oblasti bezpe\u010dnosti a v\u00fdkonnosti.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Slab\u00e1 bezpe\u010dnost<\/strong><\/h3>\n\n\n\n<p>Nejsiln\u011bj\u0161\u00edm argumentem pro aktualizaci PHP je bezpe\u010dnost. B\u011bhem aktivn\u00ed podpory vych\u00e1zej\u00ed opravn\u00e9 aktualizace, kter\u00e9 \u0159e\u0161\u00ed zji\u0161t\u011bn\u00e9 nedostatky. Jejich p\u0159ehled si m\u016f\u017eete prohl\u00e9dnout nap\u0159\u00edklad na str\u00e1nk\u00e1ch <a href=\"https:\/\/www.cvedetails.com\/product\/128\/PHP-PHP.html\">CVE Details<\/a>. Na obr\u00e1zku n\u00ed\u017ee najdete po\u010det kritick\u00fdch chyb objeven\u00fdch v jednotliv\u00fdch letech.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2024\/06\/php_kriticke_chyby.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"689\" height=\"266\" src=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2024\/06\/php_kriticke_chyby.jpeg\" alt=\"\" class=\"wp-image-5147\" srcset=\"https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/php_kriticke_chyby.jpeg 689w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/php_kriticke_chyby-300x116.jpeg 300w\" sizes=\"auto, (max-width: 689px) 100vw, 689px\" \/><\/a><figcaption class=\"wp-element-caption\">P\u0159ehled objeven\u00fdch bezpe\u010dnostn\u00edch d\u011br v PHP podle rok\u016f. Zdroj CVE Details.<\/figcaption><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">Slab\u00fd v\u00fdkon<\/h3>\n\n\n\n<p>S ka\u017edou novou verz\u00ed PHP se v\u00fdrazn\u011b zlep\u0161uje v\u00fdkonnost webu. <strong>\u010c\u00edm nov\u011bj\u0161\u00ed je verze PHP, t\u00edm rychleji se na\u010d\u00edt\u00e1 va\u0161e str\u00e1nka.<\/strong> Porovnali jsme nejnov\u011bj\u0161\u00ed funk\u010dn\u00ed verzi aplikace WordPress (standardn\u00ed instalace) na r\u016fzn\u00fdch verz\u00edch PHP. Jak vid\u00edte, PHP 8.3 dok\u00e1\u017ee zpracovat v\u00edce ne\u017e dvojn\u00e1sobek po\u017eadavk\u016f za sekundu oproti PHP 5.6. Podobn\u00e9 statistiky vid\u00edme i u dal\u0161\u00edch redak\u010dn\u00edch syst\u00e9m\u016f, jako jsou Joomla, Drupal a OpenCart. Tak\u017ee krom\u011b mnoha d\u016fle\u017eit\u00fdch bezpe\u010dnostn\u00edch v\u00fdhod by v\u00e1\u0161 web fungoval mnohem l\u00e9pe, pokud byste ho aktualizovali na nejnov\u011bj\u0161\u00ed verzi PHP.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2024\/06\/php_vykon.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"725\" height=\"394\" src=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2024\/06\/php_vykon.jpeg\" alt=\"\" class=\"wp-image-5150\" srcset=\"https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/php_vykon.jpeg 725w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/php_vykon-300x163.jpeg 300w\" sizes=\"auto, (max-width: 725px) 100vw, 725px\" \/><\/a><figcaption class=\"wp-element-caption\">Porovn\u00e1n\u00ed v\u00fdkonnosti verz\u00ed PHP<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"plan-ukonceni-starych-php\"><strong>Pl\u00e1n ukon\u010den\u00ed nepodporovan\u00fdch verz\u00ed PHP<\/strong><\/h2>\n\n\n\n<p>Po letech na\u0161\u00ed dodate\u010dn\u00e9 podpory pl\u00e1nujeme ve Websupportu <strong>v roce 2024 definitivn\u011b ukon\u010dit provoz vybran\u00fdch verz\u00ed PHP.<\/strong><\/p>\n\n\n\n<p>Zat\u00edm ponech\u00e1me verze PHP 5.6, 7.4, 8.1-8.3. Pokud pou\u017e\u00edv\u00e1te jinou verzi, va\u0161e webov\u00e9 str\u00e1nky budou p\u0159esunuty na dal\u0161\u00ed verzi PHP v po\u0159ad\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PHP 5.3 \u2013 bude p\u0159esunuta na verzi PHP 5.6,<\/li>\n\n\n\n<li>PHP 7.x \u2013 bude p\u0159esunuta na PHP 7.4,<\/li>\n\n\n\n<li>PHP 8.0 \u2013 bude p\u0159esunuta na PHP 8.2\/8.3.<\/li>\n<\/ul>\n\n\n\n<p>Tyto verze budeme na vlastn\u00ed n\u00e1klady udr\u017eovat pou\u017eiteln\u00e9 a opravovat kritick\u00e9 nedostatky. Dlouhodob\u011b je v\u0161ak jejich pou\u017e\u00edv\u00e1n\u00ed nedoporu\u010dujeme a do budoucna bude jejich pou\u017e\u00edv\u00e1n\u00ed pravd\u011bpodobn\u011b i dodate\u010dn\u011b zpoplatn\u011bno.<\/p>\n\n\n\n<p><strong>Na\u0161e klienty budeme informovat postupn\u011b, ve vln\u00e1ch.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Otestujte si kompatibilitu va\u0161eho webu<\/strong><\/h2>\n\n\n\n<p>Abychom v\u00e1m p\u0159echod na nov\u011bj\u0161\u00ed verze PHP co nejv\u00edce usnadnili, vytvo\u0159ili jsme pro v\u00e1s<a href=\"https:\/\/www.websupport.cz\/podpora\/kb\/testovani-php-verze-na-hostingu\/\"><strong> n\u00e1stroj na testov\u00e1n\u00ed kompatibility webu a PHP<\/strong><\/a>. Pomoc\u00ed tohoto n\u00e1stroje m\u016f\u017eete bezpe\u010dn\u011b, pouze ve va\u0161em prohl\u00ed\u017ee\u010di a bez vlivu na produk\u010dn\u00ed str\u00e1nku, otestovat funk\u010dnost webov\u00e9 str\u00e1nky na nov\u011bj\u0161\u00ed verzi PHP. A pokud v\u0161e funguje, jak m\u00e1, m\u016f\u017eete aktualizovat PHP ihned a neodkl\u00e1dat to na posledn\u00ed chv\u00edli. Nap\u0159\u00edklad okam\u017eit\u00fd p\u0159echod z PHP 5.5 na PHP 5.6 by podle na\u0161ich zku\u0161enost\u00ed nem\u011bl p\u0159edstavovat \u017e\u00e1dn\u00fd probl\u00e9m a m\u016f\u017ee b\u00fdt proveden okam\u017eit\u011b. Tot\u00e9\u017e plat\u00ed i pro PHP 8.0 na 8.2.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2024\/06\/aktualizacia_php.png\"><img loading=\"lazy\" decoding=\"async\" width=\"641\" height=\"135\" src=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2024\/06\/aktualizacia_php.png\" alt=\"\" class=\"wp-image-5153\" srcset=\"https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/aktualizacia_php.png 641w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2024\/06\/aktualizacia_php-300x63.png 300w\" sizes=\"auto, (max-width: 641px) 100vw, 641px\" \/><\/a><figcaption class=\"wp-element-caption\">N\u00e1stroj na testov\u00e1n\u00ed kompatibility PHP je dostupn\u00fd p\u0159\u00edmo v WebAdminu<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"jak-aktualizovat-php\"><strong>Jak aktualizovat PHP na hostingu<\/strong><\/h2>\n\n\n\n<p>Pokud jste na\u0161\u00edm z\u00e1kazn\u00edkem, <a href=\"https:\/\/www.websupport.cz\/podpora\/kb\/zmena-php-verze\/\">zm\u011bnit PHP verzi <\/a>m\u016f\u017eete kdykoliv p\u0159\u00edmo p\u0159es <a href=\"https:\/\/login.websupport.cz\/\">WebAdmin<\/a>, sekce <em>Web &gt; Slu\u017eby &gt; PHP nastaven\u00ed<\/em>. <a href=\"https:\/\/www.websupport.cz\/podpora\/kb\/testovani-php-verze-na-hostingu\/\">V tomto n\u00e1vodu<\/a> najdete informace o tom, jak m\u016f\u017eete <strong>otestovat a zm\u011bnit verzi PHP na nov\u011bj\u0161\u00ed.<\/strong><\/p>\n\n\n\n<p>Podobn\u011b by to m\u011blo fungovat i u jin\u00fdch poskytovatel\u016f.<\/p>\n\n\n\n<p>Pokud va\u0161e webov\u00e1 str\u00e1nka nefunguje, kdy\u017e vyzkou\u0161\u00edte nov\u011bj\u0161\u00ed verzi PHP, bude nutn\u00e9 upravit k\u00f3d. Pod\u00edvejte se na tento <a href=\"https:\/\/www.php.net\/manual\/en\/appendices.php\">n\u00e1vod z PHP.net<\/a>, jak aktualizovat p\u0159\u00edslu\u0161n\u00fd k\u00f3d.<\/p>\n\n\n\n<p>Pokud pou\u017e\u00edv\u00e1te WordPress, n\u00e1vod na aktualizaci najdete i v na\u0161\u00ed <a href=\"https:\/\/www.websupport.cz\/podpora\/kb\/optimalizace-a-zrychleni-wordpressu\/\">Centru n\u00e1pov\u011bdy<\/a>. Pro dal\u0161\u00ed redak\u010dn\u00ed syst\u00e9my doporu\u010dujeme ofici\u00e1ln\u00ed dokumentaci:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/docs.joomla.org\/Portal:Upgrading_Versions\">Joomla<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/docs.opencart.com\/en-gb\/upgrading\/\">OpenCart<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/library.oscommerce.com\/\">OsCommerce<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/docs.typo3.org\/m\/typo3\/guide-installation\/main\/en-us\/\">Typo3<\/a><\/li>\n<\/ul>\n\n\n\n<p>Pokud pou\u017e\u00edv\u00e1te hosting, kter\u00fd v\u00e1m neumo\u017e\u0148uje p\u0159echod na n\u011bkterou z aktu\u00e1ln\u011b podporovan\u00fdch verz\u00ed PHP, doporu\u010dujeme poohl\u00e9dnout se po nov\u00e9m hostingu. My v\u00e1m r\u00e1di <a href=\"https:\/\/www.websupport.cz\/webhosting\/migrace\/\">nab\u00eddneme v\u00edce <\/a>a za p\u0159echod od konkurence v\u00e1s odm\u011bn\u00edme.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ka\u017ed\u00fd rok kon\u010d\u00ed ofici\u00e1ln\u00ed podpora nejstar\u0161\u00ed z podporovan\u00fdch verz\u00ed PHP. P\u0159in\u00e1\u0161\u00edme v\u00e1m pohled na na\u0161e nejbli\u017e\u0161\u00ed kroky a n\u011bkolik d\u016fvod\u016f, pro\u010d byste nem\u011bli pou\u017e\u00edvat star\u00e9 verze PHP. Pl\u00e1nujeme toti\u017e v\u00fdrazn\u00e9 zm\u011bny. V tomto \u010dl\u00e1nku najdete: \u017divotn\u00ed cyklus PHP PHP je nejpou\u017e\u00edvan\u011bj\u0161\u00ed skriptovac\u00ed jazyk pro web. Podle W3Techs ho pou\u017e\u00edv\u00e1 kolem 76 % web\u016f. Na v\u011bt\u0161in\u011b [&hellip;]<\/p>\n","protected":false},"author":52,"featured_media":5132,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[575,782,4],"tags":[153],"class_list":["post-5129","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bezpecnost","category-novinky","category-technologie","tag-php"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pro\u010d byste nem\u011bli pou\u017e\u00edvat star\u00e9 verze PHP - Websupport.cz Blog<\/title>\n<meta name=\"description\" content=\"N\u011bkolik d\u016fvod\u016f, pro\u010d byste nem\u011bli pou\u017e\u00edvat star\u00e9 verze PHP a jak\u00e9 kroky pl\u00e1nujeme, abychom mohli udr\u017eet webov\u00e9 str\u00e1nky v bezpe\u010d\u00ed.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.websupport.cz\/blog\/2024\/06\/proc-byste-nemeli-pouzivat-stare-verze-php\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pro\u010d byste nem\u011bli pou\u017e\u00edvat star\u00e9 verze PHP - 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