Video: PHP daim ntawv yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
PHP - Ib qho yooj yim HTML Daim ntawv
Thaum tus neeg siv sau cov ntawv daim ntawv saum toj no thiab nyem lub pob xa tawm, lub daim ntawv cov ntaub ntawv raug xa mus rau kev ua haujlwm rau a PHP file title "zoo siab txais tos. php ib ". Cov daim ntawv cov ntaub ntawv raug xa nrog HTTP POST txoj kev. Txhawm rau tso tawm cov ntaub ntawv xa tawm koj tuaj yeem ua suab nrov tag nrho cov hloov pauv.
Ntxiv mus, HTML daim ntawv hauv PHP yog dab tsi?
PHP HTML form . Ib HTML form muaj HTML input ntsiab uas tso cai rau koj nkag mus rau cov ntaub ntawv thiab xa mus rau lub web server. Cov ntsiab lus nkag muaj xws li textinput field, password teb, checkbox, xov tooj cua khawm, file selectfield, xa khawm… thiab lwm yam.
$_ POST hauv PHP yog dab tsi? Cov $_POST variable yog ib qho array ntawm cov npe sib txawv thiab cov nqi xa los ntawm HTTP POST txoj kev. Cov $_POST variable yog siv los sau cov nqi los ntawm ib daim ntawv nrog txoj kev = " ncej ". Cov ntaub ntawv xa los ntawm ib daim ntawv nrog rau POST txoj kev yog pom tsis tau rau lwm tus thiab tsis muaj kev txwv ntawm cov ntaub ntawv xa mus.
Ib yam li ib tug yuav nug, PHP yog dab tsi thiab koj siv nws li cas?
Niaj hnub no PHP yog lwm txoj hauv kev ntawm Microsoft'sActive Server Pages (ASP) thev naus laus zis. PHP yog ib hom lus qhib server-sab uas siv los tsim cov nplooj ntawv web dynamic. Nws tuaj yeem kos rau hauv HTML. PHP feem ntau yog siv tsis txuas nrog MySQL database ntawm Linux / UNIX webservers.
Isset yog dab tsi hauv PHP daim ntawv?
PHP yog () muaj nuj nqi yog siv los xyuas seb avariable tau teem los yog tsis. Qhov no tuaj yeem pab tau los xyuas cov pob xa tawm yog nyem lossis tsis tau. Cov isset () muaj nuj nqi yuav rov qab muaj tseeb lossis cuav tus nqi. Cov isset () ua haujlwm rov qab yog tias qhov hloov pauv tau teeb tsa thiab tsis yog null.
Pom zoo:
Dab tsi yog qhov txawv ntawm daim ntawv pov thawj tus kheej thiab daim ntawv pov thawj CA?
Qhov kev ua haujlwm tseem ceeb ntawm daim ntawv pov thawj tus kheej kos npe thiab daim ntawv pov thawj CA yog tias nrog tus kheej kos npe, tus browser feem ntau yuav muab qee yam yuam kev, ceeb toom tias daim ntawv pov thawj tsis tau muab los ntawm CA. Ib qho piv txwv ntawm qhov yuam kev daim ntawv pov thawj tus kheej tau pom nyob rau hauv lub screenshot saum toj no
Dab tsi yog daim ntawv pov thawj hauv daim ntawv tshawb fawb?
Kev xav ntawm daim ntawv lees paub yog qhov tseem ceeb hauv kev tshawb nrhiav. Ib 'kev tshawb fawb warrant' yog li hais txog txoj hauv kev uas peb cov ntaub ntawv txhawb nqa cov lus thov uas peb ua. Daim ntawv lees paub txuas peb lub ntsiab lus tseem ceeb rau kev kawm, cov ntaub ntawv thiab kev tshuaj xyuas thiab cov lus thov peb ua thaum kawg
Daim ntawv teev kev sib pauv yog dab tsi thiab nws txoj haujlwm yog dab tsi?
Daim ntawv teev kev lag luam yog cov ntaub ntawv sib txuas ntawm txhua qhov kev hloov pauv hauv cov ntaub ntawv thaum cov ntaub ntawv tiag tiag muaj nyob rau hauv cov ntaub ntawv sib cais. Daim ntawv teev kev lag luam muaj cov ntaub ntawv txaus los tshem tawm tag nrho cov kev hloov pauv tau ua rau cov ntaub ntawv cov ntaub ntawv ua ib feem ntawm ib qho kev sib pauv
Dab tsi yog qhov txawv ntawm ob daim ntawv txuas thiab daim ntawv txuas txuas?
Ib daim ntawv txuas txuas txuas yog ib qho uas tsis muaj qhov pib lossis qhov kawg, tab sis lawv ua raws li cov qauv. Ib daim ntawv txuas ob npaug yog ib qho uas txhua qhov nodepoints tsis yog rau ntawm lub tom ntej node tab sis kuj mus rau yav dhau los
San daim ntawv pov thawj thiab daim ntawv pov thawj wildcard yog dab tsi?
Wildcard: daim ntawv pov thawj wildcard tso cai rau unlimited subdomains los tiv thaiv nrog ib daim ntawv pov thawj. Lub wildcard hais txog qhov tseeb tias daim ntawv pov thawj tau muab rau * . opensrs.com. SAN: daim ntawv pov thawj SAN tso cai rau ntau lub npe sau npe los tiv thaiv nrog ib daim ntawv pov thawj