Yintoni inkqubo ye-PHP?

The PHP Programmiersprache has emerged as one of the most popular and widely used languages to build websites. Iyakhawuleza kwaye kulula ukuyifunda i-Object-Orientierte Programmiersprache esetyenziswa kwiintlobo ngeentlobo zezicelo., ukusuka kwiinkqubo zevenkile kunye neenkqubo zokulawula umxholo ukuya kwi-web hosting. Ukuba ujonge ukufunda ngakumbi nge-PHP, funda uqhubeke.

Ulwimi lwenkqubo olujolise kwinjongo

PHP has evolved into an ObjectOrientated programming language, igama elithetha ukuba “ukuyila izinto.” Ngexesha PHP 4 ubeneObjectOrientation ethile, ukukhutshwa kwe-PHP yamva nje, PHP 5, iObjectOriented ngokupheleleyo. Oku kuthetha ukuba i-PHP ayisasileli ngasemva kwezinye iilwimi zokucwangcisa xa kufikwa kwiprogram ejolise kwinto. Kukho ukungaqondi kakuhle, nangona kunjalo, oko kusaqhubeka.

Iilwimi zokuprograma ezijolise kwiinjongo zisebenzisa iiklasi ukucwangcisa idatha ngendlela enengqiqo. Iklasi nganye imele uhlobo oluthile lwedatha. Iiklasi ziqulethe iindlela kunye neempawu kwaye zisetyenziswa njengesiseko sokusebenzisana kwento. Iiklasi zisetyenziselwa ukulinganisa iintlobo zedatha enzima. Ngokwahlukileyo kwiinkcukacha ezilula ezisetyenziswa kwikhowudi ye-PHP yendabuko, I-OOP ivumela uluhlu olunengqiqo lwedatha.

Udweliso olujoliswe kwinto yindlela entle yokwenza ikhowudi yakho igcinwe lula. Ungaphinda usebenzise ikhowudi kwaye uphinde usebenzise amalungu ngaphandle kokuxhalaba malunga nokungqubana kwazo. Oku kuluncedo ngakumbi xa usebenza kwindawo enkulu, izicelo ezinzima. Ukusebenzisa inkqubo eJoliswe kwiNgcaciso kuya kwenza kube lula ukuyigcina kunye nokusebenzisa kwakhona ikhowudi.

Izibonelelo zeprogram ejolise kwizinto zininzi. Ikuvumela ukuba ujongane neengxaki ezinzima ngokuzisa inqanaba elitsha lokukhupha kwikhowudi yakho. Oku kwenziwa ngokwahlula ikhowudi kwiiklasi ezahlukileyo. Ezi klasi zineentlobo zedatha ethile kunye nokuziphatha okunokuguqulwa okanye kusetyenziswe kwakhona ngeenjongo ezahlukeneyo.

Udweliso olujolise kwinto yindlela entle yokwenza usetyenziso lwewebhu oluguqukayo. Inokuguquguquka okuninzi ngakumbi kune-HTML, kwaye kulula ukuyifunda kunye nokusetyenziswa. Kwakhona lukhetho olukhulu lokwakha isoftware yeshishini lomntu ngamnye. Ukongeza ekudaleni iwebhusayithi eguqukayo, I-PHP ikuvumela ukuba wenze isoftware yesiko ekhethekileyo kwinkampani yakho.

Inkqubo ejolise kwinjongo kwi-PHP ikuvumela ukuba wahlule iiklasi zakho kwenye. Endaweni yokuba neklasi enye enkulu kunye nezimbalwa ezincinci, unokuba neeklasi ezahlukeneyo kunye neendlela zeklasi nganye. Nje ngeziphumo, ikhowudi yakho ibhetyebhetye ngakumbi, yakhiwe ngakumbi, kunye nokusebenza kakuhle ngakumbi. Ikwakuvumela ukuba ulawule ikhowudi yakho ngcono.

Eyona ndlela ilungileyo yokufumana ulwimi lwenkqubo olufanelekileyo kukudibana nenethiwekhi yakho. Ukuba sele unaso isidanga kwinkalo enxulumene nesayensi yekhompyuter, ungabuza oogxa bakho ukuba basebenzise ulwimi olunjani lwenkqubo. Basenokukwazi ukukunika iingcebiso okanye bakuxelele malunga neelwimi ezikhethekileyo zokucwangcisa onokuthi uzifundele ngokwakho. Ungaphinda ukhangele izikhundla kwi-Stellenanzeigen ukubona ukuba zeziphi iilwimi kunye nendibaniselwano efunekayo.

Ngaphandle kwe-PHP, ungasebenzisa nezinye iilwimi zokucwangcisa. URuby ngomnye wabo. Nangona kunjalo, olu lwimi luneengxaki ezithile. Umzekelo, URuby ucotha kakhulu. URuby usebenzisa i-datatypes enamandla.

Schnelle Programmiersprache

PHP is a highly flexible and powerful programming language that supports multiple databases and real-time monitoring. Iimpawu zayo ze-datenbank-friendly ziyenza ibe lukhetho olukhulu kuphuhliso lwewebhu. I-PHP ngumthombo ovulekileyo, okuthetha ukuba nabani na unokukhuphela kwaye ayisebenzise simahla. Kukwakho noluntu olukhulu lwe-PHP olwabelana ngeengcebiso kunye nolwazi oluluncedo.

I-PHP isetyenziswa ngokubanzi kushishino lophuhliso lwewebhu. Ukuthandwa kwayo kuphezulu, kwaye ihlala isetyenziswa kwikhowudi esemva kwezinye zewebhusayithi ezinkulu kwi-Intanethi. Ukwengeza, I-PHP ikhululekile kwaye ihlala iphuculwa. Nangona, kukho izinto ezingeloncedo ezimbalwa, kubandakanywa ukulinganisa kwayo okulinganiselweyo kunye nokungaqiniseki, I-PHP lukhetho oluqinileyo.

I-PHP ine-syntax elula, ukwenza kube lula kubadwelisi benkqubo ukuguqula. Ikwafakwe ngaphakathi kwe-HTML, nto leyo ethetha ukuba ikhowudi ibhalwe kakuhle kakhulu. I-PHP lulwimi lweprogram olunamandla noluguquguqukayo olunokusombulula iingxaki ezinzima, ukuphucula ukhuphiswano lwenkampani. Njenge, kubalulekile ukufunda nokuqonda ulwimi ukuze wenze ezona zicelo ziluncedo zewebhu kunye nesoftware.

Kwakhona kubalulekile ukukhuseleka xa uphuhlisa usetyenziso lwewebhu. Uphando lwakutsha nje lufumanise ukuba 86% yezicelo ze-PHP ibenobuthathaka obubizwa ngokuba yi-XSS. Esi ayisosiphelo sehlabathi, njengoko uluntu lwe-PHP luthathe amanyathelo amaninzi ukwenza i-PHP ikhuseleke. Nangona kunjalo, PHP ayikhuselekanga ngokupheleleyo, kwaye ifuna ukukhathalelwa ngakumbi kunye nengqalelo ukuthintela izoyikiso zokhuseleko. Ukuba unenkxalabo malunga nokhuseleko, I-Python lolona khetho lungcono. Ineempawu ezininzi zokhuseleko kwaye inokusingatha izicelo ezinzima ngakumbi.

Ukufunda ulwimi olutsha lwenkqubo kunzima, kodwa ilula kunokuba unokucinga. Ukuba umtsha kwikhowudi, luluvo oluhle ukuqala ngolona lwimi lulula onokulufunda, kwaye wandise ukusuka apho. Kukwangumbono olungileyo ukuqala ngolwimi olusebenza ngamathala eencwadi kunye neziseko. Ukongeza, Kubalulekile ukuqwalasela uhlobo lweprojekthi ongathanda ukuyiphumeza ngolwimi.

Ukuba umtsha kumbono wophuhliso lwewebhu, I-PHP inokuba lukhetho kuwe. Kulula ukuqalisa nge-PHP. Ulwimi lunezicelo ezininzi kwaye lunokunceda nawuphi na umdwelisi. I-syntax yayo icacile kwaye iyafundeka, eyenza ukuba ilungele abaqalayo. Lukhetho oludumileyo lwabaphuhlisi bewebhu.

I-PHP ikwakhawuleza kunezinye iilwimi ezininzi zokucwangcisa. I-PHP 7.x iphucule ukuqulunqwa kwekhowudi kwaye ifikelela kwi-2x ngokukhawuleza kunomanduleli wayo. Ngeempawu zayo ezintsha ezifana ne-Zend Engine 3.0, I-PHP ikhawuleza kakhulu kunangaphambili. Ngaphezu koko, ulwimi kulula ukuhlalutya iimfuno kunezinye iilwimi zokuprograma.

Xa kuziwa kwinkqubo, I-PHP lukhetho oludumileyo lwabaphuhlisi bewebhu. Kulula ukufunda kunye nokusetyenziswa, kwaye ibhetyebhetye ngakumbi kuneJava. Ikwakuvumela ukuba usebenze ngekhowudi engafanelekanga kunye nesimahla, oluyinzuzo enkulu kubaphuhlisi. Ngaphaya koko, I-PHP ngumthombo ovulekileyo kwaye isebenza nakweliphi na iqonga.

Objektorientierte Programmiersprache

Inkqubo eJoliswe kwiNjongo (OOP) yindlela yokwenziwa kwenkqubo esebenzisa izinto njengeebhloko zokwakha zenkqubo. Kule ndlela, izinto zichazwa njengezinto ezikhoyo kulo mzuzu. La maqumrhu anokuba neepropati kunye nokusebenzisana nezinye izinto. Izinto ziyahluka kwiiklasi, eziziingceba ezimileyo zekhowudi ekufuneka ivavanywe kwaye ihlale injalo. I-PHP isebenzisa uluhlu lweeklasi, ebizwa ngokuba yiZinto, ukulungelelanisa umsebenzi wenkqubo.

Udweliso oluJoliswe kwiNjongo kwi-PHP yenza kube lula ukuphinda kusetyenziswe nokugcina ikhowudi. Iikhonsepthi ze-Object-Orientation zihlala ziluncedo kwizicelo ezinzima. PHP 5 ineenzuzo ezininzi kwiinguqulelo zangaphambili. Ngomnye, inika ulawulo lofikelelo olungcono kwiimpawu kunye neepropati. Oku kuvumela abaphuhlisi ukuba babhale izicelo ezinzima ngakumbi ngexesha elincinci.

I-PHP ikwabonelela ngeendlela zomlingo, ezingaqhelekanga ukucelwa ngumsebenzisi kodwa zibizwa yi-PHP xa iimeko ezithile zihlangatyeziwe. Ezi ndlela zithiywe nge-double-understroke, nangona kungcono ukuphepha ukusebenzisa lo mlinganiswa xa ubiza iindlela. Iimethodi nazo zinokufakwa ngokwamaqela.

Kwi-PHP, iiklasi zineepropati zabucala kunye nezoluntu. Iipropati zabucala zezona zikhuselekileyo. Iipropati zabucala zifikeleleka kuphela ngamalungu eklasi. Iipropati zabucala, njengaleyo isetyenzisiweyo ukuyila into, azifikeleleki kuluntu. Iiklasi zinokusebenzisa pfeiloperator -> ukufikelela kwiipropati kunye neendlela zabo.

Inkqubo eJoliswe kwiNjongo ivumela abaphuhlisi ukuba benze imodeli yehlabathi ngokwemiqathango yezinto. Ezi zinto zinedatha kunye neendlela kwaye zinokusetyenziswa kwiintlobo ezahlukeneyo zezicelo. Iiklasi zichazwa ngokwamaqela izinto ezifanayo. Xa iklasi ichazwa, i-Object ingenza imisebenzi emininzi kwaye iphinde isetyenziswe.

Inkqubo eJoliswe kwi-Object ivumela abaphuhlisi ukuba babhale iinkqubo ezisebenzisa isiseko sedatha. Izinto zinokudalwa kwaye zigcinwe ngaphakathi kweefayile ze-PHP. Oku kunokwenzeka ngokusebenzisa uluhlu. Ngokusebenzisa uluhlu, ungagcina amaxabiso amaninzi ngexesha elinye. Ungasebenzisa kwakhona umyalelo owakhelwe-ngaphakathi obizwa ngokuba yi-echo. Unako kwakhona ukubethelela iziqwengana ezininzi zekhowudi kwiHTML esele ikhona.

Njengoko igama licebisa, Inkqubo eJoliswe kwiNjongo isebenzisa iimeko zokulawula ukuhamba kolwazi. Lo ngumahluko osisiseko phakathi kwenkqubo enyanzelekileyo kunye nesebenzayo. Ngelixa zombini iilwimi zisebenzisa iimeko ukulawula idatha, isitayile esisebenzayo sifuna ukuthamba ngakumbi kunye nokuguquguquka. Abaphuhlisi be-PHP banokubhala ikhowudi esebenza ngokufanelekileyo kwiqela labo ngelixa besebenzisa isakhelo esibanzi.

I-OOP ikwasebenzisa ingqikelelo yeklasi, emele into eyinyani. Into ngumzekelo weklasi. Umzekelo, igama lomntu, ubudala, inombolo yomnxeba, kunye nolunye ulwazi lunokugcinwa kwiklasi yomntu. Into inokuba neendlela kunye namaxabiso akuvumela ukuba wenze imisebenzi kuyo.