Kawm cov hauv paus ntawm PHP programming

PHP-TutleSial pib tawm nrog cov lus qhia yooj yim rau lub cajmeem hauv PHP. Nws ces tau nqis los qhia koj html thiab css ib yam nkaus. Koj yuav zoo rau koj txoj hauv kev los ua ib tus programmer txuj ci. But before you get started, it’s important to know the basics of programming before you move onto more advanced techniques. Nov yog qee cov lus qhia kom koj tau pib:

Object-Orientierte Programmierung

In Object-Oriented PHP Programmierung, classes are the building blocks of the programming language. These classes represent a specific type of data. An object can be a variable, function, data structure, or value. When creating a class, the first part of the name is a new keyword, and then the class name is a prefix. This prefix is used to create new objects, which are then stored in variables. An Object can also have properties and methods.

OOP is the technique of re-structuring the world into multiple types of interfaces. Piv txwv li, you can write a script that uses functions to query a database or make a website. Txoj kev no yog lub npe hu ua Polymorphism. Cov khoom tuaj yeem hloov kho, uas txhais tau tias tib txoj cai tuaj yeem thov rau cov khoom sib txawv. Ib qho program tuaj yeem tsim tau ntawm ob peb yam khoom, thiab txhua yam khoom yuav muaj txoj haujlwm sib txawv.

Typo3

Yog tias koj tshiab rau typo3 thiab php coding, Tom qab ntawd koj yuav tsum nyeem kab lus no. Typo3 yog ib txoj kab ua ke nrog ntau tus nta, Tab sis ob peb cuab yeej. Nws cov ntawv qhia sib txuas no tseem yog me me, muab piv rau WordPress thiab lwm tus neeg nrov. Qhov CMS no tau nyob ib puag ncig ntau xyoo thiab tau nyob ib puag ncig tau ntau xyoo. Txawm li cas los, Nws yog ib qho tseem ceeb kom nkag siab tias nws tsis yog “lub moj khaum” Nyiam WordPress, thiab yuav tsum tau tu dua tshiab kom nyob twj ywm thiab khiav.

Typo3 CMS Kev ua haujlwm tau sau hauv PHP. Cov lus txhais tau zoo li PHP, Thiab qhov no tso cai rau kev txuas ntxiv thiab hloov kho. XCLASS txoj kev ua haujlwm tso cai rau koj kom uberwrite chav kawm thiab cov hau kev. Typoscript tseem siv rau cov backend configurations. Feem Ntau, Nws siv tib syntax raws li typo3, Tab sis coding yog txawv me ntsis. Typo3 siv cov ntaub ntawv kaw lus hu ua TSCONFIGG rau ob qho thaub qab thiab Frontend kev teeb tsa.

PHP

Kawm paub txog php thiab nws cov hauv paus nrog cov kev qhia no. PHP yog ib hom lus programming uas tuaj yeem khiav ntawm txhua lub web server thiab tuaj yeem siv los tsim txhua hom website. Qhov kev hloov tshiab no tau ua ob qho khoom-taw qhia thiab prozedural. Cov Khoom Siv Hluav Taws Xob-Tshaj Tawm Yuav nrov tshaj plaws ntawm cov lag luam loj thiab cov lej cimbioteken. PHP 5 Kho kom haum nrog cov qauv yav dhau los thiab qhia tau ib qho qauv uas tau tshaj tawm cov qauv.

Hloov yog qhov nruab nrab ntawm PHP. Ib qho sib txawv yog cov sau ntawm qhov tseem ceeb uas sawv cev rau qee hom ntaub ntawv. Hauv PHP, Cov kev hloov pauv tuaj yeem sawv cev rau cov nuj nqis ntau. Yog tias tus nqi yog txoj hlua, Qhov sib txawv no sawv cev cov cim sawv cev los ntawm txoj hlua ntawd. Lwm yam, Tus nqi yuav ua tau txhua yam. PHP txhawb nqa ntau lwm hom hloov pauv. Cov no suav nrog arrays thiab cov hlua. Txhawm rau siv cov no, tsuas nkag rau lub npe ntawm cov kuj sib txawv uas koj xav kom tswj hwm.

sampinfo()

Phpinfo() Muaj nuj nqi hauv PHP qhia cov ntaub ntawv hais txog PHP. Tus neeg tawm tsam tuaj yeem siv cov ntaub ntawv no los npaj lawv qhov kev tawm tsam. Cov ntaub ntawv no muaj txiaj ntsig zoo rau kev txhaj tshuaj SQL kev txhaj tshuaj lossis cov ntawv tawm tsam traversal. Nyob ntawm seb tus phpinfo li cas() Muaj nuj nqi luam ntawv, Cov ntaub ntawv no tuaj yeem rhuav tshem lub vev xaib. Hauv qee kis, Nws tuaj yeem ua rau ib qho chaw hla kev kos duab kev tawm tsam thiab. Vim li no, Nws tseem ceeb kom nkag siab txog php cov ntaub ntawv.

Phpinfo() Muaj nuj nqi xa cov ntaub ntawv ntsig txog php module. Cov ntaub ntawv tau categorized los ntawm cov ntaub ntawv hom, uas tuaj yeem yog tus lej lossis ib qho array. Nws luam tawm cov ntaub ntawv ua ib qho array, uas tuaj yeem ua rau raug styled kom phim lub xaib. Ib qho chaw siv tau tom qab system cais cov ntaub ntawv. Yog tias koj xav tau tso tawm cov zis ntawm txoj haujlwm, Koj yuav tsum siv lub cev thiab cov cim cortrui. Yog tias koj xav tau embed tso tawm, Koj yuav tsum siv phpinfo() muaj nuj nqi ua anchor.

Php-Tus Neeg Txhais Lus

Ib lub php txhais lus yog qhov cuab yeej siv los tsim cov vev xaib thiab kev siv hauv php cov lus programming. Tus neeg txhais lus yog zoo li ib tug tub ntxhais hluas tub ntxhais hluas uas tsuas ua haujlwm thaum cov ntaub ntawv hauv php hom yog thov. Nws ua cov ntawv sau thiab sau hnub no tam sim no thiab lub sijhawm rau hauv ib daim ntawv HTML, uas yog tom qab xa mus rau lub web browser thiab tso tawm kom pom. Tus txheej txheem no tau hu ua “Nplooj Ntawv Sib Xws”.

PHP yog qhov qhib-qhov chaw server-sab scripting cov lus. Nws yog siv hauv cov nplooj ntawv web, zoo li nyob rau hauv ntau cms daim ntawv thov. Nws cov hauv paus nyob hauv C Hom, thiab ntau ntawm cov qauv kev ua haujlwm yog muab tau los ntawm cov lus no. Tus neeg txhais lus php yog lub cuab tam siv los ua cov lej php code, Thiab nws muaj nyob rau yuav luag txhua lub operating system thiab platform. Tus neeg txhais lus php feem ntau yog txhais lus ntawm php code.

PHP cov hauj lwm sau ua hauj lwm

Cov neeg ua haujlwm logic tau siv los sib piv ntau yam sib piv. Piv txwv li, Lub hauv paus tsis txuas ob qho xwm txheej, Thawj qhov uas yuav tsum muaj tseeb. Thiab (Rov qab los ntawm negation) Txhais qhov tsis muaj lub laj thawj ntawm tus neeg teb xov tooj. PHP kuj pab txhawb peb cov neeg ua haujlwm ntxiv, ua rau tag nrho ntawm yim qhov muaj peev xwm nrog negatives. Cov neeg ua haujlwm feem ntau yog yog tias, thaum, thiab thaum.

Hauv PHP, Cov neeg ua haujlwm tau hu ua tus kheej. Cov kev sib piv ob hom ntaub ntawv, thiab yog tias lawv tsis zoo ib yam, lawv tau ua tiav nyob rau hauv kev txiav txim. PHP siv cov tswv yim sib piv cov neeg ua haujlwm los kos npe yuam kev. Txhawm rau tso cov lus yuam kev, Siv lub ntiaj teb sib txawv $ php_errormsg. PHP tsis paub qhov txawv ntawm cov koom tes thiab vector arrays, Txawm hais tias lawv tuaj yeem yog sawv cev nrog cov hlua thiab cov lej. PHP txhawb nqa lub lag luam xws li (lwm) lus, rau-loops, lub khawm yus nias, thiab yog tias kev txiav txim siab.

Cov ntaub ntawv php

Php-suppor yog cov ntawv sau uas tso cai rau web kev txhim kho. Lawv tuaj yeem nkag mus tau thiab siv rau ntau lub hom phiaj. PHP suav nrog ib txoj kev pab pab uas tso cai rau cov neeg tsim tawm los daws cov xwm txheej tseem ceeb. Cov ntaub ntawv zoo ib yam li kartons thiab tau khaws cia hauv A.php ntawv. Yog tias cov ntaub ntawv tsis muaj cov cim npe tsim nyog, Nws yuav tsis raug lees paub los ntawm php-parser thiab yuav tsis raug tua. Xwb, PHP-cov ntaub ntawv tuaj yeem tsim tau siv cov ntawv sau.

PHP-suberien muaj php-qualcode thiab tuaj yeem kos rau hauv HTML-code rau kev txhim kho lub vev xaib. PHP yog lub vev xaib nrov siv tshuab uas siv cov lus server. Tus web host yuav nruab PHP ntawm nws lub server kom koj siv tag nrho nws cov haujlwm. Ntxiv nrog rau php-file, Koj yuav xav tau ib tus editor thiab FTP tus neeg thov kom xa cov nplooj ntawv rau koj lub vev xaib. Yuav pib, Koj yuav tsum siv lub koob npe nrov hosping tus kws kho mob thiab FTP tus thov. Nws muaj peb txoj cai ua haujlwm yooj yim rau php-files:

PHP programmer

Ib tus Programmierer yog software tsim tawm uas tshwj xeeb hauv kev tsim cov web thov siv Dynamic. Ib tus kws tshaj lij ua haujlwm hauv kev koom tes nrog cov kws tshaj lij ntawm kev sib txawv los tsim cov ntsiab lus zoo ntawm cov vev xaib. Lawv lub luag haujlwm yog ntau yam thiab yog constently evolving. Qhov no txhais tau tias PHP cov haujlwm ua haujlwm niaj hnub hloov pauv thiab txhim kho. Muaj ntau yam kev muaj rau tus txheej txheem php ua haujlwm ua haujlwm raws li tus neeg ywj siab, tus ntiav haujlwm, los yog tus tswv lag luam. Nov yog qee cov haujlwm tseem ceeb ntawm php programmer.

Ib tus Programmierer tuaj yeem ua haujlwm hauv keeb kwm yav dhau los yog ncaj qha nrog cov qhua tuaj noj mov thiab lawv lub nruab nrog. Nyob rau hauv rooj plaub tom kawg, Lawv yuav raug coj mus ua kev cob qhia los ua tus Programmierer php. Txawm li cas los, Kawm los ntawm kev ua yog lub sijhawm-siv thiab feem ntau yuam kev. Ntau hom php Programmierers ua haujlwm raws li cov neeg ywj pheej thiab teeb lawv tus kheej cov nqi thiab cov sijhawm. Raws li php Programmer, Koj tuaj yeem ua haujlwm ntawm cov thev naus laus zis sib txawv, los ntawm databases rau webservers rau kev siv Is Taws Nem. Txhawm rau pib koj txoj haujlwm hauv daim teb no, Nws yog ib qho tseem ceeb kom kawm cov hauv paus tsim software tsim thiab php-ua kas fes thiab cov tsev qiv ntawv.

PHP-theem

PHP-cov qauv rau lub cajmeem tau tsim los ua kom cov lus yooj yim siv los ntawm txhua tus neeg uas xav sau cov ntawv sau hauv PHP. Lawv tau tshaj txhua cov php tus tsim tawm thiab tsis txhob tsom rau kev tsov kev dawb huv dawb huv. Raws li koj yuav pom, Qhov tseem ceeb tshaj plaws uas yuav tsum nco ntsoov yog tias koj yuav tsum siv cov ntaub ntawv loj rau cov chav kawm tas li, thiab koj yuav tsum tsis txhob siv cov ntaub ntawv tsawg dua rau cov npe sib txawv. Kuj tseem muaj lwm cov qauv uas koj yuav tsum ua raws li thaum sau php code, thiab cov no suav nrog Naming Vib tabs thiab tas li nyob rau hauv '’ lossis 'qis dua_case'.

PHP-cov qauv rau lub cajmeem ua kom txo qis kev sib deev thaum tshuaj ntsuam cov phiaj xwm. Ua li no, Lawv txhais tau txheej txheem kev cia siab thiab cov cai txog kev paub txog kev cai. Cov kev cai no tau muab los ntawm cov kev sib tw ntawm cov tswv cuab cov tswv cuab. Los ntawm kev qhia cov txheej txheem style style ntawm cov phiaj xwm, Nws pab ob qho kev tsim kho thiab cov kho kom raug. Qhov no yog qhov tshwj xeeb tshaj yog thaum koj ua haujlwm nrog cov cim sib txawv. PHEP-txheej txheem rau lub cajmeem yog ib txoj hauv kev zoo kom tsis txhob muaj kev ntxhov siab thiab tsis zoo.

PHP TEJ YOOJ YIM

Hauv php programming, Cov hloov pauv tau siv los khaws thiab tswj cov ntaub ntawv. Hloov yog ob hom: Cov khoom thiab cov chav kawm. Ib qho khoom yog lub tswvyim lub cev uas muaj qee yam yam ntxwv, xws li puab, qhov loj, Thiab Hom. Tib yam yog qhov tseeb ntawm cov chav kawm, uas muaj cov ntaub ntawv zoo li tus neeg siv lub npe. PHP siv khoom los cais cov ntaub ntawv, ua rau nws yooj yim rau reorder code. Cov hauv qab no yog qee yam ntawm cov khoom muaj nyob hauv PHP.

A PHP tsim tawm txoj haujlwm piav qhia yog muaj ntau haiv neeg. Cov haujlwm no sib txawv nyob ntawm lawv cov kev txawj ntse programming. Lawv tuaj yeem ua haujlwm ntawm cov ntawv thov web lossis cov vev xaib thiab ua kom zoo. Cov haujlwm no tuaj yeem ua kom muaj kev ywj pheej lossis xav tau kev sib koom tes nrog cov kws tshaj lij ntawm lwm cov kev qhuab qhia. Thaum lub sijhawm no feem ntau ntawm cov phiaj xwm PHP txoj haujlwm tau them, Coob tus yog frawsance thiab suav nrog kev ua haujlwm nrog cov kws tshaj lij ntawm lwm cov kev qhuab qhia. Ob peb hom kev kawm php yog tsim nyog kom ua tiav hauv txoj kev ua haujlwm no. Yog li, Yog tias koj tab tom nrhiav txoj haujlwm muaj txiaj ntsig, saib tsis muaj ntxiv!