2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Parsing JSON nrog PHP JSON cov ntaub ntawv qauv zoo ib yam li PHP arrays. PHP muaj cov haujlwm ua haujlwm rau encode thiab txiav txim siab JSON cov ntaub ntawv. Cov haujlwm no yog json_encode thiab json_decode, feem. Ob txoj haujlwm tsuas yog ua haujlwm nrog UTF-8 encoded hlua cov ntaub ntawv.
Yuav ua li cas tswj JSON hauv PHP?
php $json='[{ "field1":"data1-1", "field2":"data1-2" }, { "field1":"data2-1", "field2":"data2 -2" }]'; if($encoded=json_decode($json, true)) { ncha 'encoded'; // voj los ntawm json qhov tseem ceeb foreach($ encoded as $key=>$value) { ncha'object index: '.
Yuav ua li cas encode JSON hauv PHP?
json_encode. PHP json_encode muaj nuj nqi yog siv los hloov PHP array / khoom rau hauv JSON tus nqi. txoj haujlwm no rov qab JSON sawv cev ntawm txoj hlua yog tias txoj haujlwm ua tiav lossis FALSE ntawm kev ua tsis tiav. JSON tag nrho cov hlua cov ntaub ntawv yuav tsum yog UTF-8 encoded, uas yog encoded.
Puas PHP nyeem JSON?
Ntau hom lus zoo li PHP tam sim no siv cov haujlwm los nyeem thiab tsim JSON cov ntaub ntawv. Qhov kev qhia no yuav qhia koj paub nyeem cov ntaub ntawv JSON thiab hloov nws mus rau ib qho array hauv PHP. Kawm paub yuav ua li cas cais JSON siv json_decode thiab json_encode functions.
PHP ua li cas JSON?
Kom tau txais JSON txoj hlua peb tuaj yeem siv "php://input" nrog rau cov haujlwm file_get_contents uas pab peb tau txais JSON cov ntaub ntawv raws liib cov ntaub ntawv thiab nyeem nws mus rau hauv ib txoj hlua. Tom qab ntawd, peb tuaj yeem siv json_decode muaj nuj nqi los txiav txim siab JSON txoj hlua. $json='["geeks", "for", "geeks"]'; $data=json_decode($json);
Pom zoo:
Qhov twg ntawm cov haujlwm hauv qab no yog qhov ua haujlwm tsis muaj ntaub ntawv?
printf thiab scanf yog cov piv txwv rau formatted input thiab output functions thiab getch, getche, getchar, gets, puts, putchar thiab lwm yam yog cov piv txwv ntawm unformatted input output functions. Tus qauv input-output header ntaub ntawv, npe hu ua stdio.
Tus qauv twg yog qhov muaj txiaj ntsig zoo hauv kev qhia txog kev ua haujlwm ntawm cov poov tshuaj?
Teb: Kev Xaiv D) Ob tus qauv vim tias txhua tus qhia tau hais tias muaj hluav taws xob nyob hauv lub plhaub sab nraud. Kev piav qhia: Nws pom meej meej tias qauv 1 thiab qauv 2 muaj cov khoom siv hluav taws xob uas zoo ib yam rau cov poov tshuaj.
In translation dab tsi decodes mrna message (code)?
Cells txiav txim siab mRNAs los ntawm nyeem lawv cov nucleotides hauv pawg ntawm peb, hu ua codons. Nov yog qee qhov nta ntawm codons: Feem ntau cov codons qhia txog cov amino acid. Peb "stop" codons cim qhov kawg ntawm cov protein.
Puas yog cov kws tsim qauv ua haujlwm ua haujlwm?
Cov neeg tsim qauv ua haujlwm hauv muag lossis tsim cov chaw tsim khoom, cov tuam txhab tsoos tsho, cov khw muag khoom, chaw ua yeeb yam lossis cov tuam txhab seev cev, thiab cov tuam txhab tsim. Tus kws tsim qauv ua haujlwm nyob qhov twg?
Qhov chaw twg yog qhov zoo dua yog dab tsi yog cov qauv siv lub locator?
ID thiab lub npe tus cwj pwm ua qhov tseem ceeb tshaj lwm qhov chaw yog tias koj lub vev xaib muaj tus ID thiab lub npe tshwj xeeb, ces nws ib txwm xav kom siv lawv hloov XPath vim lawv nrawm dua thiab ntau dua muaj txiaj ntsig. Thaum siv cov chaw nyob, xyuas kom meej tias koj lub chaw nrhiav cov ntsiab lus meej rau cov khoom xav tau.
