Video: $_ ENV hauv PHP yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
$_ENV yog siv los xa cov kev hloov pauv ib puag ncig los ntawm lub vev xaib server.
Ntawm no, $_ ENV yog dab tsi?
$_ENV yog superglobal uas muaj ib puag ncig sib txawv. Ib puag ncig variables yog muab los ntawm lub plhaub nyob rau hauv uas PHP tab tom khiav, yog li lawv yuav sib txawv raws li cov plhaub sib txawv.
Tsis tas li ntawd,. ENV cov ntaub ntawv hauv PHP yog dab tsi? Yog koj paub PHP lub moj khaum zoo li Laravel thiab Symphony, koj yuav tsum paub txog lawv. env file . Nws yog qhov chaw koj teeb tsa tag nrho koj qhov kev sib txawv hauv zos xws li los ntawm cov ntaub ntawv pov thawj rau cov ntawv pov thawj xa ntawv thiab txhua yam koj xav tias yuav tsum tau peculiar rau ib puag ncig (Local/Development, Staging and Production).
Ntxiv rau qhov no, dab tsi yog qhov hloov pauv ib puag ncig hauv PHP?
Ib puag ncig hloov pauv txhais PHP ib puag ncig hloov pauv tso cai rau koj cov ntawv sau cia qee yam ntawm cov ntaub ntawv dynamically ntawm lub server. Qhov no txhawb cov ntawv hloov tau yooj yim hauv lub server uas muaj peev xwm hloov pauv ib puag ncig.
Getenv Output_path yog dab tsi?
Qhov system. getenv ua (" OUTPUT_PATH ") rov qab tus nqi ntawm qhov teev tseg ( OUTPUT_PATH ) environmental variable. Rov qab null yog tias nws tsis pom ib puag ncig hloov pauv nrog lub npe teev ( OUTPUT_PATH ). FYI.
Pom zoo:
Yuav ua li cas yog ib tug txheej txheem nyob rau hauv lub operating system dab tsi yog ib tug xov nyob rau hauv lub operating system?
Ib tug txheej txheem, nyob rau hauv cov nqe lus yooj yim tshaj, yog ib tug executingprogram. Ib tug los yog ntau tshaj threads khiav nyob rau hauv cov ntsiab lus ntawm cov txheej txheem. Ib tug xov yog ib qho tseem ceeb chav tsev uas theoperating system faib lub sij hawm processor. Lub threadpool feem ntau yog siv los txo tus naj npawb ntawm cov ntaub ntawv thov thiab muab kev tswj hwm ntawm cov neeg ua haujlwm threads
Dab tsi yog txoj hauv kev virtual thiab txoj hauv lub cev hauv asp net?
Ua ntej tshaj, cia peb tau txais cov ntsiab lus ntawm ob qho tib si. Txoj kev lub cev - Qhov no yog txoj hauv kev tiag tiag cov ntaub ntawv nyob ntawm IIS. Txoj kev Virtual - Qhov no yog txoj hauv kev kom nkag mus rau cov ntaub ntawv uas tau taw qhia los ntawm sab nraud ntawm IIS daim ntawv thov folder
Dab tsi yog .ENV cov ntaub ntawv hauv laravel?
Env cov ntaub ntawv uas muaj ntau qhov chaw, ib kab - ib qho KEY = VALUE khub. Thiab tom qab ntawd, hauv koj Laravel qhov project code koj tuaj yeem tau txais cov kev hloov pauv ib puag ncig nrog kev ua haujlwm env('KEY')
Dab tsi yog qhov tau txais thiab xa txoj hauv kev hauv PHP?
Txoj kev POST hloov cov ntaub ntawv ntawm HTTPheaders. Cov ntaub ntawv yog encoded raws li tau piav nyob rau hauv rooj plaub ntawm GETmethod thiab muab tso rau hauv ib tug header hu ua QUERY_STRING. POSTmethod tsis muaj kev txwv rau cov ntaub ntawv loj kom xa tuaj.POST txoj kev tuaj yeem siv los xa ASCII thiab binarydata
Babel preset ENV yog dab tsi?
@babel/preset-env yog qhov ntse preset uas tso cai rau koj siv qhov tseeb JavaScript yam tsis tas yuav micromanage uas syntax hloov pauv (thiab xaiv tau, browser polyfills) xav tau los ntawm koj lub hom phiaj ib puag ncig. Qhov no ua rau koj lub neej yooj yim dua thiab JavaScript pob me me! Nruab