{"id":6285,"date":"2017-11-22T10:28:46","date_gmt":"2017-11-22T09:28:46","guid":{"rendered":"https:\/\/www.domovanje.com\/blog\/?p=6285"},"modified":"2018-02-22T10:56:36","modified_gmt":"2018-02-22T09:56:36","slug":"prednosti-uporabe-php-verzije-7-x","status":"publish","type":"post","link":"https:\/\/www.domovanje.com\/blog\/2017\/11\/22\/prednosti-uporabe-php-verzije-7-x\/","title":{"rendered":"Prednosti uporabe PHP verzije 7.x"},"content":{"rendered":"

Vsi razvijalci in lastniki spletnih strani si \u017eelijo, da bi njihove strani delovale brezhibno in hitro, da ne bi porabljale preve\u010d stre\u017eni\u0161kih virov in bi se lahko spopadle tudi z ve\u010djim obiskom.<\/p>\n

Sistemi, ki temeljijo na PHP-ju (npr. WordPress, Drupal, Joomla, Magento), ter t.i. PHP framework-i (Larva, Symfony) dokazano delujejo hitreje na najnovej\u0161i stabilni verziji PHP. Ve\u010dina sistemov je \u017ee usklajena s standardi, ki jih je uvedel PHP 7, nekateri (npr. WordPress) pa za uporabo \u017ee priporo\u010dajo PHP 7<\/a>.<\/p>\n

Kratka zgodovina<\/h2>\n

PHP 5 je bil objavljen 13 let nazaj ter \u0161e vedno dobro slu\u017ei svojemu namenu. A ker so spletna mesta dinami\u010dna, morajo slediti trendom in zahtevam uporabnikov.<\/p>\n

Zato je morala razli\u010dica PHP 6 uvesti Unicode<\/a>. Unicode je standard za izmenjavo podatkov, namenjen izpisu znakov in sicer tako, da je neodvisen od ra\u010dunalni\u0161kega programa ali platforme. Razli\u010dica ni bila zaradi kompleksne implementacije, pove\u010danja porabe pomnilnika ter vpliva na delovanje, nikoli objavljena.<\/p>\n

Zato je bila za\u010detek 2015 objavljena prva (alfa) verzija PHP 7. Prva stabilna verzija je bila objavljena decembra istega leta. To\u010dno leto kasneje, decembra 2016, pa je bila izdana verzija 7.1.<\/p>\n

Objavljen je bil tudi seznam odstranjenih funkcij<\/a>, ki vam pomaga pri prehodu iz PHP 5 na PHP 7. Prav tako je na voljo seznam odstranjenih API-jev in raz\u0161iritev<\/a>.<\/p>\n

Podatki o uporabi<\/h2>\n

W3Techs je v statistiki za marec 2017 zapisal, da razli\u010dico 5 uporablja 95,6 % vseh spletnih strani. Do danes se je ta odstotek zmanj\u0161al na 90,5 %<\/a>.<\/p>\n

Skoraj 22 %<\/a> najbolj priljubljenega CMS-ja WordPress v oktobru 2017 te\u010de na PHP 7.<\/p>\n

Delovanje<\/h2>\n

Eden od najpomembnej\u0161ih razlogov za prehod na PHP 7 je pove\u010danje hitrosti delovanja spletne strani. Spodnja slika prikazuje izbolj\u0161anje hitrosti delovanja WordPress strani, ki deluje na PHP 5.6. ter na PHP 7.<\/p>\n

\"\"<\/p>\n

<\/div>\n

Da bi preverili in potrdili izbolj\u0161anje delovanja, smo se odlo\u010dili za izvedbo ve\u010d testov. Na VPS stre\u017enik smo namestili WordPress, Joomlo in WooCommerce, s testnimi vsebinami brez aktivnega predpomnenja. Ve\u010d o metodologiji in rezultatih spodaj.<\/p>\n

Test<\/h2>\n

Hardware in software<\/h5>\n

4 CPU core Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz 8 GB RAM CloudLinux okolje<\/p>\n

Metoda testiranja<\/h5>\n

Siege -c 20 -v -t 300s -i \u2013 f url file Vklju\u010denih je 20 isto\u010dasnih uporabnikov, v t.i. internet mode (\u010dakamo na \u010das odgovora pred po\u0161iljanjem novih zahtevkov), trajanje je 300 sekund<\/p>\n

WordPress<\/h4>\n

WordPress: verzija 4.7.2 Vti\u010dniki: 0 Tema: Twenty Seventeen verzija 1.1 Vsebina: WordPress theme test data<\/p>\n

URL-ji<\/h5>\n

http:\/\/www.stresstest.host25.com\/wp\/ http:\/\/www.stresstest.host25.com\/wp\/uncategorized\/template-sticky\/ http:\/\/www.stresstest.host25.com\/wp\/tag\/sticky-2\/ http:\/\/www.stresstest.host25.com\/wp\/category\/uncategorized\/ http:\/\/www.stresstest.host25.com\/wp\/page\/4\/ http:\/\/www.stresstest.host25.com\/wp\/page\/2\/<\/p>\n

PHP 5.6<\/h5>\n

\"\"<\/p>\n

Lifting the server siege…\u00a0\u00a0\u00a0\u00a0\u00a0 done.
\nTransactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2374 hits
\nAvailability:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 100.00 %
\nElapsed time:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 299.48 secs
\nData transferred:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 65.75 MB
\nResponse time:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2.00 secs
\nTransaction rate:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7.93 trans\/sec
\nThroughput:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.22 MB\/sec
\nConcurrency:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 15.84
\nSuccessful transactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2374
\nFailed transactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0
\nLongest transaction:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 18.82
\nShortest transaction:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.67<\/p>\n

PHP 7.0<\/h5>\n

 <\/p>\n

\"\"<\/p>\n

Lifting the server siege…\u00a0\u00a0\u00a0\u00a0\u00a0 done.
\nTransactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3514 hits
\nAvailability:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 100.00 %
\nElapsed time:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 299.53 secs
\nData transferred:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 101.85 MB
\nResponse time:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1.21 secs
\nTransaction rate:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 11.73 trans\/sec
\nThroughput:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.34 MB\/sec
\nConcurrency:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 14.21
\nSuccessful transactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3514
\nFailed transactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0
\nLongest transaction:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7.67
\nShortest transaction:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.28<\/p>\n

Joomla<\/h4>\n

Joomla: Version 3.6.5 Stable Moduli\/Vti\u010dniki: brez Tema: Protostar Vsebina: Getting started, Hello World<\/p>\n

URL-ji<\/h5>\n

http:\/\/www.stresstest.host25.com\/joomla\/ http:\/\/www.stresstest.host25.com\/joomla\/component\/tags\/tag\/2-joomla http:\/\/www.stresstest.host25.com\/joomla\/component\/search\/?searchword=template&searchphrase=all&Itemid=101 http:\/\/www.stresstest.host25.com\/joomla\/2-uncategorised\/2-hello-world<\/p>\n

PHP 5.6<\/h5>\n
\"\"<\/h5>\n

Lifting the server siege…\u00a0\u00a0\u00a0\u00a0\u00a0 done.
\nTransactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4786 hits
\nAvailability:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 100.00 %
\nElapsed time:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 299.35 secs
\nData transferred:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 47.49 MB
\nResponse time:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.74 secs
\nTransaction rate:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 15.99 trans\/sec
\nThroughput:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.16 MB\/sec
\nConcurrency:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 11.88
\nSuccessful transactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4786
\nFailed transactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0
\nLongest transaction:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 5.70
\nShortest transaction:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.22<\/p>\n

PHP 7.0<\/h5>\n

\"\"<\/p>\n

Lifting the server siege…\u00a0\u00a0\u00a0\u00a0\u00a0 done.
\nTransactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 5759 hits
\nAvailability:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 99.97 %
\nElapsed time:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 299.16 secs
\nData transferred:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 57.24 MB
\nResponse time:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.54 secs
\nTransaction rate:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 19.25 trans\/sec
\nThroughput:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.19 MB\/sec
\nConcurrency:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 10.47
\nSuccessful transactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 5759
\nFailed transactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2
\nLongest transaction:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 6.62
\nShortest transaction:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.15<\/p>\n

WooCommerce<\/h4>\n

WordPress: verzija 4.7.2 Vti\u010dniki: WooCommerce verzija 2.6.13 Tema: Storefront verzija 2.1.7 Vsebine: WordPress theme test data + WooCommerce Dummy Data<\/p>\n

URL-ji<\/h5>\n

http:\/\/www.stresstest.host25.com\/woo\/ http:\/\/www.stresstest.host25.com\/woo\/proizvod\/flying-ninja\/ http:\/\/www.stresstest.host25.com\/woo\/blog\/ http:\/\/www.stresstest.host25.com\/woo\/uncategorized\/markup-image-alignment\/ http:\/\/www.stresstest.host25.com\/woo\/feed\/ http:\/\/www.stresstest.host25.com\/woo\/2010\/10\/ http:\/\/www.stresstest.host25.com\/woo\/kosarica\/ http:\/\/www.stresstest.host25.com\/woo\/moj-racun\/ http:\/\/www.stresstest.host25.com\/woo\/page\/2\/ http:\/\/www.stresstest.host25.com\/woo\/kategorija-proizvoda\/music\/ http:\/\/www.stresstest.host25.com\/woo\/oznaka-proizvoda\/modern\/ http:\/\/www.stresstest.host25.com\/woo\/proizvod\/woo-logo-2\/#comment-57 http:\/\/www.stresstest.host25.com\/woo\/?s=ninja<\/p>\n

PHP 5.6<\/h5>\n

 <\/p>\n

\"\"<\/p>\n

Lifting the server siege…\u00a0\u00a0\u00a0\u00a0\u00a0 done.
\nTransactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1682 hits
\nAvailability:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 100.00 %
\nElapsed time:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 299.44 secs
\nData transferred:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 37.48 MB
\nResponse time:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3.04 secs
\nTransaction rate:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 5.62 trans\/sec
\nThroughput:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.13 MB\/sec
\nConcurrency:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 17.10
\nSuccessful transactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1682
\nFailed transactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0
\nLongest transaction:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7.70
\nShortest transaction:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1.12<\/p>\n

PHP 7.0<\/h5>\n

\"\"<\/p>\n

Lifting the server siege…\u00a0\u00a0\u00a0\u00a0\u00a0 done.
\nTransactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2631 hits
\nAvailability:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 100.00 %
\nElapsed time:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 299.38 secs
\nData transferred:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 60.66 MB
\nResponse time:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1.75 secs
\nTransaction rate:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8.79 trans\/sec
\nThroughput:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.20 MB\/sec
\nConcurrency:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 15.38
\nSuccessful transactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2631
\nFailed transactions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0
\nLongest transaction:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7.05
\nShortest transaction:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.56<\/p>\n

Preverba zdru\u017eljivosti PHP verzij<\/h2>\n

Vsaka nova razli\u010dica PHP prinese s sabo mnoge izbolj\u0161ave in popravke napak, v\u010dasih pa tudi spremembe v strukturi kode. Nekatere nadgradnje prina\u0161ajo izbolj\u0161ave ali spremembe, zaradi katerih so deli prej\u0161njih razli\u010dic zastareli. V nekaterih primerih tako celotna razli\u010dica (npr. PHP 4) ni ve\u010d podprta.<\/p>\n

\u010ce uporabljate dodatke, teme ali skripte, ki se sklicujejo na zastarelo PHP kodo, lahko pride ob nadgradnji na novej\u0161o razli\u010dico PHP do te\u017eav v delovanju zaradi nezdru\u017eljivosti stare kode. Zato je potrebno pred nadgradnjo na novej\u0161o razli\u010dico PHP raziskati stanje strani in preveriti, ali je nadgradnja sploh primerna re\u0161itev.<\/p>\n

Na povezavi<\/a> si lahko preberete, kaj se je spremenilo v nekaterih razli\u010dicah PHP.<\/p>\n

Spletno stran lahko pregledate ro\u010dno, lahko pa delo prepustite vti\u010dnikom, ki vas opozorijo na morebitne te\u017eave v zdru\u017eljivosti. Za pregled WordPress strani lahko uporabite vti\u010dnike:<\/p>\n