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>> Profesa: Hebu kuandika mpango huo
anaendelea kufuatilia kwa mara ngapi user

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ametembelea ukurasa wa mtandao, na hivyo
kuonyesha jinsi gani unaweza kutumia PHP ya

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kipengele inayojulikana kama kikao.

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Tuanze kwa mara ya kwanza kuchukua kuangalia
katika HTML kwamba nimepata tayari katika

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kuendeleza hapa.

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Taarifa kwamba mimi kuweka katika mwili wa
ukurasa kauli hii, una

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alitembelea tovuti hili mara nyingi,
ambapo hii wengi ni kuwa

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matokeo ya outputting variable kwamba
inaonekana aitwaye dola ishara ya kukabiliana.

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>> Sasa, hadi saa juu ya faili hii nimekuwa
kushoto baadhi ya nafasi kati ya tag wazi

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na kufungwa tag kwa baadhi ya kanuni PHP.

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Hebu sasa kuanza somo kwa
kubainisha zifuatazo.

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Session_start na wito
kwamba kazi.

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Nini kwamba tu gani ni kuwajulisha PHP
kwamba napenda kuanza kutumia

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Kikao cha ili super kimataifa, dola
ishara kikao kusisitiza, ni

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inapatikana kwa mimi.

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Na PHP na mtandao wa kompyuta mapenzi,
Kwa hiyo, magically kutunza jinsi

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kwamba kutofautiana ni kweli kutekelezwa
na kurudi kati ya mteja na

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server, kwa namna fulani kwa kutumia cookies.

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>> Lakini katika kanuni, nini mimi ijayo wanataka kufanya
ni kitu kama zifuatazo.

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Kwanza, hebu angalia kama tayari kuna
kuweka variable katika kikao yangu.

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Kama ni kuweka dola ishara kusisitiza
kikao cha quote unquote counter.

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Kwa maneno mengine, mimi naenda kutumia
kikao cha super kimataifa ya kuhifadhi muhimu,

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pia hujulikana counter, ambao thamani ni
kwenda kuwa jumla ya idadi ya mara

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kwamba mtumiaji ametembelea yangu, na
Mimi itabidi kunyakua thamani kwamba kama inahitajika na kuweka

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ni katika mitaa kutofautiana, dola yangu
ishara counter, ili

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kuonyesha thamani hiyo.

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>> Next, kama kwamba muhimu ni kweli kuweka na
thamani, mimi nina kwenda mbele na kunyakua

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kwamba thamani kwa ishara ya dola kukabiliana na anapata
ishara ya dola kusisitiza kikao

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wazi bracket quote unquote kukabiliana na
karibu bracket semicolon.

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Kama kwamba variable si kuweka, hebu
tu initialize ya kukabiliana na

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thamani ya sifuri.

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Wakati huo huo, bila kujali nini kinatokea up
huko, hebu update ishara ya dola

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kusisitiza kikao quote unquote kukabiliana na
kuwa chochote hii mitaa

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kutofautiana ni pamoja na 1.

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>> Mimi kudai, sasa kwa njia ya tawi hili na
kidogo ya hesabu, mimi naenda

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kuanza kuhesabu mara ngapi
user ametembelea ukurasa huu.

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Hebu tuangalie.

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Hebu kuokoa faili na kufungua
it up katika browser.

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>> Hebu kutembelea
http://localhost/counter/php.

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Hii ni mara ya kwanza mimi niko hapa hivyo,
kweli, mimi alitembelea tovuti mara sifuri.

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Lakini hebu sasa Reload, hebu sasa Reload,
hebu sasa Reload, na kama

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ilivyotarajiwa, nimepata sasa alitembelea tovuti hii
si sifuri, lakini mara tatu.

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