Isifundo sesinyathelo ngesinyathelo se-PHP Programmierung

Cishe ufuna isifundo sesinyathelo ngesinyathelo se-php programmierung. This article covers topics like Typdeklarationen, izincazelo eziguquguqukayo, PHP izinguqulo, kanye ne-PHP-GTK. Ngemva kokuyifunda, kufanele ukwazi ukukhodi izinhlelo zokusebenza zewebhu kalula. Kodwa kuthiwani uma unemibuzo noma ungaqiniseki ukuthi ungaqala kuphi? Sikuphathele!

Typdeklarationen

The new version of PHP 7 ingeza ama-scalartypes ukwenza imisebenzi ibe lula ukuyisebenzisa. Lokhu kumiswa kolimi lonke kuvumela abathuthukisi ukuthi bashintshe izinhlobo noma nini lapho kudingeka. Ama-opharetha amasha, kuhlanganise ne-Spaceship Operator, qedela i-syntax yolimi. Lezi izengezo zolimi eziyisishiyagalolunye. I-Typdeklarationen izimemezelo zohlobo. Ku-PHP, uhlobo kungaba iyunithi yezinhlamvu, inombolo, umsebenzi, noma inhlanganisela yezinhlobo.

Ku-PHP, ungasebenzisa umsebenzi we-strripos ukuhlukanisa phakathi kwesipelingi esincane nesibi. uzohlubula() yethulwe ku-PHP 5.0. Uma kuqhathaniswa izintambo, qiniseka ukuthi usebenzisa ukulingana okuqondile (===) ukugwema ukuthi kungenzeka kube nomphumela ongalungile. Omunye umsebenzi - stripos(). Kuyafana ne-strpos(), kodwa ayibheki isipelingi esincane noma esibi.

Imisebenzi yeyunithi yezinhlamvu ingaba nzima ukuyiqonda ngaphandle kokwazi i-syntax yolimi. Imisebenzi esekelwe emazwini avamile ingasiza. Ngokwesibonelo, ama-opharetha wezintambo ezifana nokuhlukaniswa() futhi preg_split() zidinga ulwazi lwe-Arrays. Ku-PHP, nokho, zilula uma kuqhathaniswa. Imisebenzi esekelwe emazwini avamile, njengokuthi get() futhi ubeke(), yenza ukukhohlisa kwentambo kube nomoya oshisayo. Uma udinga ukwenza usesho olujwayelekile, ungasebenzisa preg_split() ukwenza njalo.

PHP izinguqulo

PHP-Versionen für Programmierung gehören zum umfangreichen list der server-side programming languages available on the Internet. Lolu hlu luhlanganisa i-PHP 5.3, 5.4, 5.6, 7.0, futhi 7.1. Zonke lezi zinguqulo zinokuthuthuka kanye nokulungiswa kwezinkinga zangaphambilini. Kunconywa ukuthi ubuyekezele enguqulweni yakamuva noma nini lapho kunokwenzeka. Nokho, kubalulekile futhi ukucabangela ukuthi izinguqulo ze-PHP ziyanqanyulwa ngemva kwesikhathi esithile.

Ngenkathi ukuvuselela akunzima njengoba kuzwakala, kuhilela umsebenzi owengeziwe. Ungase udinge ukuxazulula izinkinga, buyisela ama-plug-in amadala, noma ubhekane nokulungiselelwa kokuvikeleka. Ngokufanelekile, kufanele uhlole noma yiziphi izinguquko ozenzayo endaweni ephephile yokungaxhunyiwe ku-inthanethi kuqala. Ngale ndlela, ungathola noma yiziphi izinkinga ngaphambi kokuthi zithinte iwebhusayithi yakho ebukhoma. Uma uhlangabezana nezinkinga ngenkathi uhlola izinguquko, ungaphendukela kumphakathi we-PHP ukuze uthole ukwesekwa noma usizo.

I-PHP yasungulwa ekuqaleni 1994. Inguqulo yokuqala yakhululwa njengesethi yemibhalo ye-Perl futhi yayihloselwe ukuqapha ithrafikhi yewebhusayithi. Ku 1996, U-Rasmus Lerdorf ushintshele ku-C futhi wengeza izinketho ezintsha. Amathuluzi Wekhasi Lasekhaya Lomuntu Siqu (PHP) iphrojekthi yethulwa. Ku 1997, ithimba lonjiniyela elisemthethweni lasungulwa ukuze lilungise ukushayisana kwenguqulo yokuqala ye-PHP. Ngaleso sikhathi, I-PHP isikhule yaba uhlelo olukhulu lokuthuthukiswa kwewebhu.

PHP-GTK

When writing applications with the PHP-GTK language, udinga ukujwayelana nomqondo wayo oyisisekelo wemindeni yekilasi. Emndenini wakwaGdk, Ngokwesibonelo, uzosebenzisa amakilasi amele amawindi asezingeni eliphansi nemibala. Umndeni wakwa-Gtk uyinkimbinkimbi kakhulu futhi uqukethe amakilasi asezingeni eliphezulu futhi angase aqukathe amanye amakilasi, kuhlanganise nalezo ongazisebenzisi. Kulesi sihloko, sizochaza ukuthi imindeni yekilasi isebenza kanjani nokuthi kungani ungayisebenzisa.

Uhlelo lokusebenza lwe-PHP-GTK lungenza noma yini, kusukela ezinhlelweni zokuphatha okuqukethwe neziphequluli zemibhalo kuye kumakhasimende e-IRC nabaqaphi benethiwekhi. Ngisho nabahleli bombhalo bangenziwa kusetshenziswa lolu limi. Kungenzeka futhi ukuyisebenzisela amaphrojekthi omthombo ovulekile. Uhlelo lokusebenza olulodwa kungase kube isibukeli sesiphakeli sezindaba esidonsa izinsuku ezibalulekile kusuka kuseva emaphakathi. Olunye uhlelo lokusebenza lungase lubandakanye isizindalwazi esiyisisekelo noma isipredishithi. Ungakwazi futhi ukusebenzisa i-PHP-GTK ukuze uhlaziye izibalo.

I-PHP-GTK iyisinqumo esihle kakhulu sezinhlelo zokusebenza zewebhu zansuku zonke. Ilungele futhi amanethiwekhi futhi ihlinzeka ngokuxhumana ku-Java kanye ne-NET. Ingase futhi isetshenziselwe izinhlelo zokusebenza ezizimele zohlangothi lweklayenti. Ungakwazi ngisho nokubhala izinhlelo ezisebenza kuma-Mac, ngakho-ke kuyisinqumo esihle kakhulu sokuthuthukiswa kwewebhu. Uma ungaqiniseki ukuthi i-PHP-GTK iyilungele yini iphrojekthi yakho, qala ngokufunda lawa macebiso ayisisekelo.

PHP-Interpreter

If you are new to the PHP language, into yokuqala okudingeka ufunde ukuthi ungasebenzisa kanjani i-PHP-tolika. Lolu hlelo lusebenza kukhompuyutha yakho futhi luhumusha amakhodi we-PHP. I-PHP iwulimi oluhunyushiwe, ngakho-ke umhumushi uzohlola idatha oyicelile kusizindalwazi futhi ayibuyisele isesimweni sekhasi lewebhu le-HTML. Leli fayela lizobe selithunyelwa kuseva yakho yewebhu, lapho izonikezwa khona kusiphequluli sakho. Ungabuka uhlelo lwe-PHP kukhompyutha yakho ngokuya ku-localhost/igama lefolda bese ulithayipha esipheqululini sakho.

Umhumushi we-PHP ufana nomuntu osebenza naye oyivila. Isebenza kuphela uma ifayela ngefomethi ye-PHP iceliwe, ngakho uma uvakashela iwebhusayithi, umhumushi uzocubungula iskripthi se-PHP futhi abhale isikhathi nosuku kudokhumenti ye-HTML. Uma ifayela lilethiwe kuseva yewebhu, isiphequluli sizoyibonisa. Ingasebenza nezinye izilimi zombhalo njengePerl, I-Python, noma Ruby.

PHP-Skripte

PHP-Skripte Programmierung can be used for any purpose, okuhlanganisa ukuthuthukiswa kwewebhu, ukucubungula umbhalo, kanye nokuthuthukiswa komdlalo. Le mibhalo ingasebenza ngaphandle kokusebenzisa iseva noma isiphequluli, futhi idinga kuphela i-PHP-parser ukuze isebenze. Imibhalo ye-PHP ifaneleka kakhulu emisebenzini ephindaphindwayo efana ne-imeyili nokuthuthukiswa kwewebhu, futhi zifundeka kalula uma zinemingcele embalwa.

I-PHP-Skripte iskripthi se-PHP esebenzisa ukusebenzelana nokuqukethwe okunamandla. Lapho isetshenziswa, I-PHP-Skripts igcinwa kuhla lwemibhalo olukhethekile. Lolu hlu lwemibhalo lube selusetshenziswa ukubonisa i-PHP-Skripte kuwebhusayithi. Ngaphezu kokuthuthukiswa kwewebhu, I-PHP-Skripte Programmierung ivumela abalawuli bewebhu ukuthi banikeze izinhlobonhlobo zokusebenza okwengeziwe.

Imvelo ye-PHP-skripte iqala ngethegi ye-php. Umugqa olandelayo uqukethe imiyalo echo kanye nethi Hello World! ukukhiqiza okukhiphayo kwe-HTML. Iyunithi yezinhlamvu ngokwayo ubude obuguquguqukayo futhi ibhekwa njengohlobo lwedatha oluzimele. Ngenxa yokuzimela kwayo kwenkundla, iskripthi se-PHP singaba siningi kakhulu – ngisho nalapho isetshenziswa ngokuhambisana nesizindalwazi. Uma ufuna ukudala isayithi elisebenziseka kalula, consider PHP-Skripte Programmierung

PHP-Skripte ohne HTML

When it comes to the server-side scripting of websites, I-PHP iyisinqumo esihle kakhulu. Lolu limi lokubhala lunohlu olubanzi lwemisebenzi yenethiwekhi, izixhumanisi zephrothokholi, kanye nokufinyelela kusizindalwazi. Kulula ukufunda futhi inikeza inani elikhulu lamathuba okusetshenziswa. Ngaphezu kwamaseva ewebhu, I-PHP ingasetshenziswa ukudala izinhlelo zokusebenza zedeskithophu kanye nemibhalo ye-cron. Ngezansi kunezinye izici ezibalulekile ze-PHP okufanele uyazi.

Isinyathelo sokuqala nesibaluleke kakhulu ekusebenziseni i-PHP ukufunda izinto eziyisisekelo. Lolu limi lukuvumela ukuthi udale amawebhusayithi ngolwazi oluncane lwe-HTML, futhi iyakwazi ukuxhumana nesizindalwazi. Ungasebenzisa lokhu ukuze uzuze. I-PHP inguqulo yakamuva yalolu limi futhi inezinye izinzuzo eziningi. Nokho, kufanele uhlale ukhumbula ukulandela izinqubo ezihamba phambili uma usebenza nayo. Uma unombuzo, ungangithinta njalo. Ngingakujabulela ukukusiza!

Uma umusha kuhlelo lwe-PHP, Ngingancoma ukuthi uqale ngezibonelo ezithile zezinhlelo eziyisisekelo bese wakha ulwazi lwakho njengoba uqhubeka. Enye yezinto ezinhle kakhulu nge-PHP ukuthi ingasebenza kunoma iyiphi ipulatifomu. Ngaphezu kwalokho, isebenziseka kalula futhi ingasetshenziswa kunoma iyiphi inhloso. Uma usaqala, I-PHP iwulimi olukhulu kuwe. Ngokungafani ne-HTML, PHP akulula nje ukufunda, kodwa futhi iyavumelana nezimo.

PHP-Skripte mit HTML

A PHP script is an interpreted script written in the PHP programming language. Ingasetshenziselwa ukwakha amakhasi ewebhu. Imibhalo ye-PHP isebenzisa okuguquguqukayo, okuyizintambo noma izinombolo ezixhumanisa idatha yangaphandle neskripthi. Okuguquguqukayo kungamela noma yini kusukela kuzinombolo ezilula kuye kuzimpawu, umbhalo, noma wonke amakhodi e-HTML. Okuguquguqukayo kuvamise ukuba yiyunithi yezinhlamvu yohlobo lwedatha. Uhlobo lokuqala lwenani iyunithi yezinhlamvu, okuwukuguquguquka okungaba yinoma yibuphi ubude. Ayiyona ingxenye yanoma yiluphi olunye uhlobo lwedatha. Ngokwesibonelo, intambo “Sawubona Mhlaba” ithathwa njenge-Uberschrift, okuyinani lokuqala elihunyushwe isiphequluli sewebhu.

Ngokuvamile, i-PHP-Skripte iqukethe kokubili i-HTML ne-logic yohlelo. Indlela evamile yokuhlukanisa kokubili ukusebenzisa ifayela elihlukile ngalinye. Kwabaqalayo, kubalulekile ukumisa indawo yokuthuthukisa ezinzile. Ungasebenzi kumaseva omphakathi, kodwa setha iseva yewebhu yokuhlola ukuze ugweme ukubangela izinkinga. Qiniseka ukuthi izilungiselelo zeseva yewebhu ziyefana nohlelo lokukhiqiza. Futhi, cabanga ukuthi uzoshintshanisa kanjani idatha phakathi kwe-PHP-scripts ne-HTML.