PHP

Ukufunda kunye nokukhohlisa iifayile ze-JSON ngumsebenzi oqhelekileyo kwihlabathi lophuhliso lwe-PHP. I-JSON, emele i-JavaScript Object Notation, iye yaba ngumgangatho owamkelwa ngokubanzi wotshintshiselwano lwedatha ngenxa yokulula kunye nokwakheka kobunzima bokukhanya. Ngaphandle kwegama layo, i-JSON yifomati yedatha ezimeleyo. Oku kuthetha ukuba sinokuyisebenzisa ngokufanelekileyo kwi-PHP kunye nezinye iilwimi ezifana neJavaScript, i-C #, i-Python, njl. Kule khokelo, siza kujonga ngakumbi ukuba sinokufunda njani idatha yefayile ye-JSON usebenzisa i-PHP ngesinyathelo-by- inyathelo lokuhamba ngekhowudi.

I-PHP ibonelela ngemisebenzi eyakhelwe-ngaphakathi yokulawula idatha ye-JSON, ibhengeza abaphuhlisi ngokulula kunye nokuhambelana phambili. Ingaba usebenza kwisicelo esincinci okanye uphatha iiseti ezinkulu zedatha, i-PHP kunye ne-JSON yenza udibaniso olunamandla.

Funda Okuninzi

Ifayile yephpinfo () sisixhobo esinamandla esinokubonelela ngobutyebi bolwazi malunga nendawo yakho ye-PHP. Esi sixhobo sinokusetyenziswa ekuxazululeni iingxaki kunye nokulungiswa kweempazamo kwaye ithathwa njengeyimfuneko kuye nawuphi na umphuhlisi we-PHP.

Funda Okuninzi

Ukufikelela kwidatha yemeta yefayile kunye nokufumana umhla wokwenza ifayile yinkalo ebalulekileyo yokulawula kunye nokulungelelanisa imixholo yedijithali. Oku kunokuba luncedo kakhulu kubaphuhlisi abakha izicelo ezisebenza ngeefayile, ezifana nenkqubo yolawulo lomxholo, iisoftware zolawulo lwefayile njalo njalo. Sihlala sifuna ukubonisa iinkcukacha njengaxa ifayile yenziwe, ubungakanani befayile, okanye umhla wokugqibela wokuguqulwa. Kwi-PHP, inani lemisebenzi eyakhelweyo iyafumaneka enokukunceda ulande olu hlobo lweenkcukacha zefayile. Kule meko, siza kusebenzisa ifayilemtime() umsebenzi ukufumana umhla wokudala wefayile.

Funda Okuninzi

Ngokuqinisekileyo, ndiyaziqonda iimfuno zakho. Nantsi indlela inqaku lakho "kwi-PHP kunye nokuPhathwa kwedilesi ye-IP" elinokujongeka kanje:

Ukusebenza ngeedilesi ze-IP kwihlabathi lophuhliso lwewebhu yinto eqhelekileyo, ngakumbi xa ujongana nokulandelwa komsebenzisi, ukuseta ukuqinisekiswa kwe-IP-based, kunye nokunye okuninzi.

Funda Okuninzi

Xa usebenza ne-PHP, umngeni omnye abaphuhlisi abaninzi abadibana nawo kukufuna ukucima i-directory kunye ne-subdirectories yayo ngokuphindaphindiweyo. Lo msebenzi ubaluleke kakhulu xa ujongana nolawulo lwefayile kwisicelo sakho sePHP. Ngelixa i-rmdir () umsebenzi kwi-PHP ubonelela ngomsebenzi osisiseko ukususa uvimba weefayili, awusebenzi xa ulawulo lungenanto. Kule meko, kufuneka ucime zonke iifayile kunye ne-subdirectories kuqala. Apha kulapho i-recursion isiza khona. Ngeli nqaku, sijonga ngokubanzi le nkqubo.

Funda Okuninzi

Ukufakela i-ext-curl ngumsebenzi oqhelekileyo kubaphuhlisi abasebenza kwi-PHP, ngakumbi xa befuna ukwenza izicelo ze-HTTP ngaphakathi kwezicelo zabo. Ulwandiso lubonelela ngoluhlu lwemisebenzi yokudlulisa idatha kusetyenziswa iiprothokholi ezahlukeneyo. Sisixhobo esibalulekileyo sokusebenzisana ne-RESTful APIs, ukungena kwiiwebhusayithi, ukuthumela imeyile nge-SMTP phakathi kwezinye. Nokuba uphuhlisa usetyenziso lwe-aggregator yomxholo, isixhobo sokumba idatha, okanye usetyenziso olulula olunxibelelana neqela lesithathu le-APIs, i-ext-curl inokuba lelinye lamahlakani akho angcono.

Funda Okuninzi

**i-sigmoid function** yingcinga yemathematika esetyenziswa ngokubanzi kwiinkalo ezifana nokufunda koomatshini, ukufunda okunzulu, kunye nenzululwazi yedatha, ngenxa yeempawu zayo ezizodwa zokuqhelanisa imveliso phakathi koluhlu lwe-0-1. Umsebenzi we-sigmoid ubalulekile ngakumbi kulawulo lolungiselelo kunye nothungelwano lwe-neural eyenziweyo, apho inceda ukubonelela okunokwenzeka, inceda uqikelelo oluchanekileyo.

Funda Okuninzi

Indawo yeHeader sisixhobo esinamandla kwi-PHP. Inika abaphuhlisi indlela esebenzayo yokulawula ukuhamba kwezicelo zabo zewebhu. Eli nqaku liza kuwuphonononga ngokucokisekileyo lo msebenzi, lichaza iingxaki zalo, izisombululo, kunye namanyathelo ayimfuneko okuwusebenzisa ngokufanelekileyo ukusebenza ngokufanelekileyo.

Funda Okuninzi