PHP: i element lokugqibela. Afanayo okuhambisa

PHP - mbiso yaye mihla: ngesivakalisi qualitative semantics ubuchule ukwenza ngaphezu koko kuvumelekile. Ukuphunyezwa iingcinga senkqubo into ebomini kunye inkululeko yokutshintsha uhlobo variable wenza ubunyani neminqweno kakhulu nobuganga obukwanjalo.

Ma - uyilo yamandulo, kwaye associative - ixesha irhafu, kunokuba yimfuneko yokusebenza. Nangona kukho inani elaneleyo Nemisebenzi equka indalo lwe data kucwangcisa na ngaphambili ukuba isiqulatho (ubungakanani, ixabiso, iintlobo kunye neekhowudi), nto leyo ziyafumaneka ukubukela kwaye usebenzise kwimijikelo PHP foreach. Into yokugqibela uluhlu luyafumaneka na indlela indalo. Uluhlu - le associative yesiqhelo kunye - ukuvumela ukuba ukudala izintlu, kodwa lwesivakalisi njengesiqhelo, PHP kuyinto ukusebenzisa.

ixabiso le uluhlu

Ukuba ngoyaba isalathisi nokusetyenziswa yoyilo

$ ArData [] = scField omtsha (); // scNumber, scString, scParagraph, ...

apho scField () - Umakhi into abstract - "inkcazelo", leyo sikwaziindlalifa: inani (scNumber), umtya (scString), amabinzana (scParagraph), ... ukufumana PHP: i element yokugqibela = afanayo ezinto bembonisa iimpawu zayo njenge i element uqobo.

Ngokusisiseko, kungakhathaliseki ukuba yintoni element ingqalelo efanelekileyo, kodwa lo mzekelo kuyimfuneko ukulandela isalathisi (in PHP - isalathisi) ngaphakathi uluhlu. Njalo - kufuneka ukuba eyakho iselula isalathisi zabo. Imfuneko ngendlela PHP ikhesa uswele ingcamango "isiqalelo yokugqibela = uluhlu". Ifumaneka nge ekupheleni umsebenzi () kunye array_pop (), i element lokugqibela njengomthunywa ngokweempawu uluhlu. Ukusebenzisa array_pop (), ukongeza, sokuyivula ngokuzenzekela element uluhlu yangaphambili iimpahla zazo ilungiswe ngokufanelekileyo. Oku kubangelwa ubukho intshukumo izinto.

Ngenxa yoko, sicinga kwimeko PHP isintaksi, ukususa i element yokugqibela kwi uluhlu okunene kuthetha ukusebenzisa iimpawu zayo. Ngokulandelana ubeka nokususa izinto, sinokuyifumana iipropati eguquguqukayo, i omtsha ovuselelayo nesakhiwo sedata, kwakheka ngaphakathi syntax ekhoyo.

Imvelaphi kunye nezinye izinto

Kuye umsebenzi ukusebenza kunye Into yokuqala uluhlu kwaye ungahambisa isalathisi se lwangaphakathi. Xa kwezivakalisi eqhelekileyo ukuba i inkqubo ezaziwa lwenkqubo, ukuba kuyimfuneko. Ngokuphathelele ekudaleni kwimiboniso kunye dynamically ukutshintsha ingqondo - akukho.

Xa udweliso ke, kusoloko kukho umbuzo isigqibo: variables na iimeko umqhubi lokutshintsha indlela yalo algorithm, iziporo into ukuhlalutya, iziphumo ekugcineni.

Ukuba uhamba iziko womxhuzulane ukuya into eyiyo umwisele izigqibo zakhe, inkqubo kuthatha kwi, jonga lebyi ezahlukeneyo ngokupheleleyo. Amaninzi ke le ndlela ivumela ukuphumeza le njongo, ingakumbi xa kufikwa, umzekelo, ukusetyenziswa tags loxwebhu * .docx, abhalwe XML standard Vula.

Xa PHP ukufumana i element wokugqibela uluhlu - ibe intsingiselo entsha kwaye ithuba elihle.

iifayile Iyalayisha neempawu olutshintshayo amaqoqo

Xa isayithi inikeza ikhono ukukhuphela nayiphi na iifayile, kulula ukusebenzisa ingcamango into nje, umzekelo, SCFile kunye nenzala kuye scImage, scDocument, scTabe, nto leyo eya kuba iimpawu igama elifanayo, kodwa eyahlukileyo yabo imbonakalo kunye nentsingiselo (umxholo). Kwimeko ye-syntax PHP (i element lokugqibela = uluhlu), usebenzisa isiphelo () umsebenzi, ungasebenzisa oku ndlela limisela element lokugqibela. Esi sigqibo nomdla kuba umva le ntetho kunesiqhelo kwaye ikuvumela ukuba uzulazule ubume data njengoko lamiswa.

ukusetyenziswa ezinjalo amaqoqo kunika intsingiselo entsha ngokupheleleyo. Inika PHP isintaksi, kodwa ukusebenzisa loo inika amathuba amakhulu.

Ukubonelela umfanekiso, yokugcina kwidathabheyisi, ukuchacha kwimeko yokusebenza (umzekelo) iya kuba kunokwenzeka ukuba bacinge ngokuba injani na xa kukho kwimeko ethile. Zonke iifayile ezilayishwe ibekwa nangendlela ecwangciswe kakuhle ngokulandelelana uluhlu, kwaye xa kusetyenzwa, lisoloko ngokuba iindlela ezifanayo lodweliso efanayo, kodwa umfanekiso wefayile ziya kuboniswa njengoko kukuthi, i-spreadsheet fayile - njengoko itafile, kwaye uxwebhu - okubhaliweyo ahambelanayo. Ifumaneka nge PHP syntax element wokugqibela uluhlu sele yokuxhobisa iipropati zalo kunye nomxholo ethile.

Kwimeko yokugqibela, uxwebhu lihlala ngabalinganiswa, imitya, amanani, kunye, okona kubaluleke kakhulu, ukufometha. Gcina umkhondo isiqalelo ngasinye kunzima, kodwa ngokunika into efanelekileyo isiqalelo ifomati ngasinye ingafumaneka, ngaphandle kwamathandabuzo, uxwebhu njengoko kunjalo.

Mfumba and Recursion phakathi kwezivakalisi

Xa sisebenza kuphela element yokugqibela, imeko engundoqo - neentango, kodwa xa le nto sisetyenziswe, kwaye isebenzisa ukwakha enye, ingakumbi ngokwakhe - i recursion. Sinokuthi izinto ezininzi ezilungileyo iilayibrari PHPOffice, ezifana PHPWord, kodwa ababesithi bona bayazi indlela yinxalenye ajika ufomato koxwebhu lokuqala kweli yoko, wena awukwazi.

Eneneni, usebenzisa PHPOffice \ PHPWord ke ukuvula kuba lula nayiphi Uxwebhu vordovsky (* .docx), kodwa yomlando kuphela iifayile XML-ezininzi structured, imifanekiso, kunye nezinye izinto.

Kwangaxeshanye, xa sithatha kuphela iifayile-XML, nangona zihlobene (ngokubhekiselele entlobo, iitheyibhile, imifanekiso), aziyi kusebenza ukwenza uxwebhu olutsha olusekwe kwi endala kunye nje bafudukela utshintsho zakhe ezinqwenelekayo (umzekelo, ukutshintsha umbala wefonti, format). Khetha isicelo-tag Vula XML amisiweyo, yaye imveliso-khon ezifana MS Word, akusoloko ukumelana izimvo lomntu, ukwenza iimpazamo.

Okunene * ifayile .docx - zip-archive, kunye nesakhiwo ecacileyo kwaye ziqondakale. Ukusebenzisa inani elincinane bezinto ukuba ngokusesikweni wayichaza uze ngexesha ufunda ngokupheleleyo, nesakhiwo sedata ozimeleyo, nto leyo ungalawuleka semantically.

Kulo mzekelo, ulwazi kweli xwebhu - isakhiwo data olusesikweni. Amnike ndlela, unako ngokulula abeza kweli inqanaba intsingiselo ngoyaba lwesivakalisi.