Ukwazi ukuthi i-PHP isebenza kanjani

PHP Kuyinto a ulimi lohlelo esetshenziselwa njalo ukudala okuqukethwe kwamawebhusayithi lapho ungahlela khona amakhasi we-html namakhodi womthombo. I-PHP iyi- isifinyezo esiphindaphindwayo Kusho ukuthini "PHP Humbhalo Pi-re-processor »(ekuqaleni Amathuluzi we-PHP, noma, Pi-ersonal Humalume Page Amathuluzi), futhi iyi- ulimi oluhunyushiwe esetshenziselwa ukudala izinhlelo zamaseva, noma ukudala okuqukethwe okunamandla kwamawebhusayithi. Muva nje nokwenziwa kwezinye izinhlobo zezinhlelo kufaka phakathi izinhlelo zokusebenza ezinesikhombimsebenzisi sokuqhafaza kusetshenziswa imitapo yolwazi Qt o I-GTK +.

UKUSETSHENZISWA kwe-PHP

Ukusetshenziswa okuyinhloko kwe-PHP yilokhu okulandelayo:

• Uhlelo lwe amakhasi ewebhu Dynamics, imvamisa ihlanganiswa nenjini yedatha MySQL, yize inokusekelwa kwendabuko kwezinye izinjini, kufaka phakathi okujwayelekile I-ODBC, enweba kakhulu amathuba akho wokuxhuma.
• Izinhlelo zeConsole, ngesitayela se- I-Perl o Ukubhala kweShell.
• Ukwenziwa kwezinhlelo zokusebenza ezizimele zesiphequluli, ngokuhlanganiswa kwe-PHP kanye ne- Qt/I-GTK +, ekuvumela ukuthi uthuthukise izinhlelo zokusebenza zedeskithophu kufayela le- izinhlelo ezisebenzayo lapho isekelwa khona.

IZINHONO ZE-PHP

• Kuyinto a ulimi lweplatform.
• Amandla wokuxhuma kunabashayeli be-database abaningi abasetshenziswa namuhla, igqamisa ukuxhumana kwayo ne- MySQL
• Funda futhi usebenzise idatha kusuka emithonjeni ehlukahlukene, kufaka phakathi idatha abasebenzisi abangayifaka kusuka kumafomu e-HTML.
• Ikhono lokukhulisa amandla alo kusetshenziswa inani elikhulu lamamojula (abizwa ngama-ext's noma izandiso).
• Inemibhalo ebanzi kuwebhusayithi yayo esemthethweni ([1]), okume phakathi kwayo ukuthi yonke imisebenzi yohlelo iyachazwa futhi iboniswe kufayela elilodwa losizo.
• Es khulula, ngakho-ke yethulwa njengenye indlela efinyeleleka kalula yawo wonke umuntu.
• Ivumela amasu we Izinhlelo eziqondiswe entweni.
• Ikuvumela ukuthi wakhe amafomu ewebhu.
• Igcwele kakhulu futhi ifaka umtapo wolwazi wemisebenzi
• Akudingi kuchazwa kwezinhlobo eziguqukayo noma ukuphathwa okuningiliziwe kwezinga eliphansi.

Nasi isibonelo sekhasi lewebhu elilula elithuthukiswe kusetshenziswa ulimi lwe-PHP.

Isibonelo

<?php

if (ukukhishwa($ _POST['imibukiso'])) {

     qalisa 'Sawubona, '.umabhebhana($ _POST['Igama'])

         .', Ukudla okuthandayo:'. umabhebhana($ _POST['ukudla']);

} futhi {

?>

<indlela yefomu="THUMELA" isenzo ="?"> Ungubani igama lakho?"umbhalo" igama ="Igama"> Yikuphi ukudla okuthandayo?"ukudla"> Spaghetti Yokosa IPizza"hambisa" igama ="imibukiso" inani ="Landela">

<?php

}

?>

Kule khodi kungenzeka ukugcina lezi zici ezilandelayo:

• Okuguqukayo okuthunyelwa yifomu kusetshenziswa indlela ye-POST, kutholwa ngolimi ngaphakathi kwamalungu afanayo $_POST, okusiza ukuthola lolu hlobo lwedatha. Le ndlela efanayo isetshenziswa ulimi kuyo yonke imithombo yolwazi kuhlelo lokusebenza lwewebhu, njenge amakhukhi kumatrix $_COOKIES, Okuguquguqukayo kwe-URL ku $_GET (okungamafomu angasetshenziselwa ukonga idatha), kusetshenziswa okuguquguqukayo kweseshini $_SESSION, kanye nokuguquguquka kweseva neklayenti ngamalungu afanayo $_SERVER.
• Ikhodi ye-PHP ishumekwe ngaphakathi kwe- i-HTML futhi ixhumana nayo, ikuvumela ukuthi wakhe ikhasi leWeb kusihleli esivamile i-HTML bese ufaka ikhodi enamandla ngaphakathi kwamathegi <?php ?>.
• Umphumela ukhombisa futhi ufihle izingxenye ezithile zekhodi i-HTML ngemibandela.
• Kungenzeka ukusebenzisa imisebenzi eqondene nolimi kuzinhlelo zokusebenza zeWebhu njenge htmlentitites(), eguqula izinhlamvu ezinencazelo ethile ekhethekile kukhodi i-HTML noma lokho kungakhonjiswa ngephutha kusiphequluli njengama-accents noma ama-umlaut, ngokufana kwawo ngefomethi i-HTML..

Uma ufuna ukuqhubeka nokufunda okuthe xaxa mayelana nolimi lwamahhala oludume kakhulu, ungavakashela iwebhusayithi esemthethweni