PHP OOPs tswvyim yog dab tsi?
PHP OOPs tswvyim yog dab tsi?

Video: PHP OOPs tswvyim yog dab tsi?

Video: PHP OOPs tswvyim yog dab tsi?
Video: yog hmoov dab tsi. Zoo Xyooj (cover) 2024, Kaum ib hlis
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Object-Oriented Programming ( PHP OOP ), yog hom lus programming hauv paus ntsiab lus ntxiv rau php5, uas pab hauv kev tsim kho, siv lub vev xaib rov siv tau. Cov Object Oriented tswvyim hauv PHP yog: Koj txhais ib chav kawm ib zaug thiab ces ua ntau khoom uas zwm rau nws. Yam khoom kuj hu ua piv txwv.

Ntawm no, yog PHP tag nrho cov khoom taw qhia?

Yog, qhov tseeb versions ntawm PHP yog khoom taw qhia . Ntawd yog, koj tuaj yeem sau cov chav kawm koj tus kheej, siv qhov qub txeeg qub teg, thiab qhov tsim nyog, qhov ua haujlwm ua haujlwm tau ua hauv khoom ib yam nkaus (zoo li MySQL nta). PHP muaj kev txhawb nqa ib nrab rau OOP thiab tsis yog dawb huv OOP.

Ib tug kuj yuav nug, dab tsi yog chav kawm thiab khoom hauv PHP? A chav kawm yog tus kheej-muaj, ywj siab sau los ntawm kev sib txawv thiab kev ua haujlwm uas ua haujlwm ua ke los ua ib lossis ntau yam haujlwm tshwj xeeb, thaum khoom yog ib qho piv txwv ntawm a chav kawm . A chav kawm ua raws li tus qauv los yog daim phiaj xwm los ntawm ntau tus neeg khoom tsim tau.

Ntawm no, $ qhov no yog dab tsi hauv PHP Oops?

PHP OOP $ qhov no Lo lus tseem ceeb. $ qhov no yog ib qho pseudo-variable (tseem yog ib lo lus tshwj tseg) uas tsuas yog muaj nyob rau hauv txoj kev. Thiab, nws hais txog cov khoom ntawm txoj kev tam sim no. Cia peb tsim ib chav tsev nrog ib qho khoom (xim). Tom qab ntawd, tsim ib qho khoom los ntawm nws.

PHP txoj kev yog dab tsi?

Txoj kev yog qhov ua tau zoo siv hauv cov ntsiab lus ntawm chav kawm / khoom. Thaum koj tsim cov haujlwm sab nraud ntawm chav kawm / khoom, koj tuaj yeem hu nws ua haujlwm tab sis thaum koj tsim ib qho haujlwm hauv chav kawm, koj tuaj yeem hu nws ua txoj kev.

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