wp-predavanja_2.ppt

7/17/2019 WP-Predavanja_2.ppt

http://slidepdf.com/reader/full/wp-predavanja2ppt 1/41

PHP (Lekcija 2)Miladin Stefanović

[email protected]



PHP 2 predavanje Forme Kontrolne stukture



Forme HTML



Forma <html><head><head><!od"><#orm action$%messa&e'php% method$%post%>

nesi svoju poruku <input t"pe$%te*t% name$%msg% si+e$%,-%><input t"pe$%su!mit% value$%.end%><#orm><!od"><html>

/ajva0nija linija je <#orm> ta&

<form action="message.php" method="post">

'''<#orm>



1itanje i procesiranje podataka <html><head><head><!od">

<php Prihvatanje poslatih podataka i+ #orme3input $ $_POST['msg'];

use itecho 4Porucio su <i>3input<i>%5>

<!od"><html>



<a href=index.php?action=viewedit&id=<? echo $id ?

!!"#%'(<)a!&n*sp&n*sp&n*sp&n*sp&n*sp

<a href=index.php?action=del&id=<?echo $id ?!!(+,#(-(<)a!<)font!



$id=$/0123id45

$action=$/0123action45



Kontrolne strukture i# else

elsei#else i# .kracena sintaksa 6hile do76hile #or #oreach !reak

continue s6itch

return re8uire include

re8uire9once include9once &oto



:#7else i# (condition) ;uradi

=else ;uradi 2

=



:#7else <phpi# (3a > 3!)

echo %a je vece od !%5>



Primer <html><head><head>

<!od"><#orm action$4&odine'php% method$%post%>nesi &odine <input name$%a&e% si+e$%2%><#orm><!od"><html>



&odine'php <html><head><head><!od"><php pre+imanje podataka3a&e $ 39P.T?@a&e@A5 procesiranjei# (3a&e >$B) ;

echo CPunoletan si@5=i# (3a&e < B) ;

echo 4Maloletan si%5=><!od"><html>



.kraDeno pisanje

E <php

if (3numTries > -)

3ms& $ @lockin& "ouraccount'''@5

!

ese

3ms& $ @Gelcome@5!

>

<php

3ms& $ 3numTries >- @lockin& "ouraccount'''@ @Gelcome@5

>



.kraDeno pisanje <php i# (3a $$ I) >J je jednako I<php endi#5 >



&nje0davanje <phpif (3dan $$ C.reda@) ;

if (3vreme $$ C-I@) ; if (3#akultet $$ CPMF@) ; 3predmet $ CGe! pro&ramiranje@5

=

==>



ili mno&o ele&antnije

E <php

i# (3dan $$ C.reda@ 3vreme $$ @-I@ 3#akultet $$ CPMF@) ;3predmet $ CGe! pro&ramiranje@5

=

>



i#7elsei#7else i# (prvi uslov je T) ;akcija

=elsei# (dru&i uslov je T) ;

akcija=

elsei# (treciuslov je T) ;akcija=

''' itd'''else ;

akcija=



Primer <html><head><head><!od"><h2>.pecijalitet kuce<h2><p>

<#orm method$%&et% action$%cookin&'php%><select name$%da#%><option value$%%>Ponedeljak .reda<option value$%2%>torak Netvrtak <option value$%,%>Petak /edelja<option value$%O%>.u!ota

<select><input t"pe$%su!mit% value$%.end%><#orm><!od"><html>



cookin&'php <php

&et #orm selection$da# = $_%T['da#'];

Proverai# (3da" $$ ) ;3special $ piletina@5=

elsei# (3da" $$ 2) ;3special $ ja&njetina@5=

elsei# (3da" $$ ,) ;3special $ Cprasetina@5=

else ;3special $ Cjaretina@5=>

<h2>.pecijalitet kuce<h2><php echo 3special5 ><!od"><html>



6hile 6hile (i+ra+) statement '''

end6hile5



Primer <php

primer

3i $ 56hile (3i <$ -) ; echo 3iQQ5

= >

<php

primer 2

3i $ 56hile (3i <$ -) echo 3i5

3iQQ5end6hile5>



Ro76hile <php

3i $ -5

do ; echo 3i5= 6hile (3i > -)5>



Primer 2 <html!

<head!<)head!<*od6!<form action=7kvadrati.php8method=89:S18!Svi kvadrati i;med > i <inpt

t6pe=8text8 name=8limit8 si;e=88maxlength=88!<inpt t6pe=8s*mit8 name=8s*mit8vale=7acna8!<)form!<)*od6!<)html!

<html!<head!<)head!<*od6!

<?php

)) set promenlive $pperAimit = $9:S12BlimitB5$lowerAimit = >)) racnane kvadrata

while C$lowerAimit <=$pperAimitD E echo C$lowerAimit F$lowerAimitD.B&n*spB

$lowerAimitGGH)) stampane kraa posla

echo B0IJB

?!

<)*od6!

<)html!



#or #or (e*pr5 e*pr25 e*pr,) statement S*pr se uvek !e+uslovno i+vrUava na poVetku

petlje' /a poVetku svake iteracije S*pr2 se procenjuje'

koliko je TWS petlja se nastavlja i i+vrUavaju seu&nje0dene nared!e' koliko je FJL.S i+vrUavanje

petlje se prekida' /a kraju svake iteracije S*pr , se i+vrUava ocenjuje'



Primeri #or (3i $ 5 3i <$ -5 3iQ

Q) ; echo 3i5=

#or (3i $ 5 5 3iQQ) ; i# (3i > -) ; !reak5 = echo 3i5=



Primeri 2 3i $ 5

#or (5 5 ) ; i# (3i > -) ; !reak5 = echo 3i5

3iQQ5=

#or (3i $ 3j $ -5 3i <$ -53j Q$ 3i print 3i 3iQQ)5



#oreach <php

3arr $ arra"( 2 , O)5

#oreach (3arr as 3value) ; 3value $ 3value 25= 3arr je sada ni+ (2 O X B)unset(3value)5 ra+resava re#erencu>



reak break prekida i+vrUavanje tekuDe

for

foreach while do-while ili

switch strukture



Nontinue Continue se koristi unutar strukture petlji +a

prekidanje ostatka tekuDe petlje i nastavljanja

i+vrUavanja na oceni uslova na poVetkusledeDe iteracije'



.6itch i# (3i $$ -) ;

echo %i e8uals -%5=

elsei# (3i $$ ) ; echo %i e8uals %5=

elsei# (3i $$ 2) ; echo %i e8uals 2%5=

s6itch (3i) ; case - echo %i e8uals -%5

!reak5 case echo %i e8uals %5 !reak5

case 2 echo %i e8uals 2%5 !reak5=



Primeri s6itch (3i) ;

case 4ja!uka% echo %i je ja!uka%5

!reak5 case 4kruska% echo %i je kruska%5 !reak5

case 4visnja% echo %i je visnja%5 !reak5=

s6itch (3i) ;case -case

case 2 echo %i je manjeod , ali nije ne&ativno%5 !reak5case , echo %i je ,%5=



Primeri 2 de#ault <php

s6itch (3i) ; case - echo %i e8uals -%5

!reak5 case echo %i e8uals %5 !reak5 case 2 echo %i e8uals 2%5

!reak5 defa&t

echo %i is not e8ual to - or 2%5=>



ret&rn()

Povratak i+ #unkcije



re*&ire() + inc&de()

re*&ire() i include() su vrlo slicni sa tom ra+likomsto po nastanku &reske re8uire +austavlja skrpit ainclude samo daje upo+orenje'

<php re8uire %'''php%5 > re8uire (%desno'php%)5 include 4ve+a'incY5



Primer ,ars.php

<php

3!oje $ C+elena@53voce $ Cja!uka@5

>

test.php

<php

echo 4Zedna 3!oja 3voce%5 Zedna

include @vars'php@5

echo % Zedna 3!oja 3voce%5 Zedna +elena ja!uka

>



Korisni primeri include(%site'inc'php%)5 include(%header'php%)5

include(%menu'php%)5



re*&ire_once() + inc&de_once()

:denticno kao re8uire i include s tom ra+likom stoskript da li je !ilo ukljucenja re8uire ili includeukoliko jeste ne radi to ponovo'



[o to <php

&oto a5

echo @Foo@5 aecho @ar@5>

ar



Primer <php

do ; i# (3i < I) ; echo %i nije dovoljno veliko%5 !reak5

= 3i $ 3#actor5 i# (3i < 3minimum9limit) ; !reak5 = echo %i je ok%5

procesiraj i

= 6hile (-)5>



Primer 2echo (%<#orm action$@%'39.SW\[email protected]@A'%@ method$@post@>%)5

echo (%<tr>%)5

echo (%<td !&color$@]SSSSSS@ 6idth$@--^@ colspan$@2@ ali&n$@center@ class$@smallold@>%)5

echo (3current9mms'% o# %'3ro69mms9count?@count@A)5

echo (%<td>%)5

echo (%<tr>%)5

echo (%<tr>%)5

echo (%<td !&color$@]SSSSSS@ 6idth$@I-^@ ali&n$@ri&ht@>%)5

echo (%<input t"pe$@su!mit@ name$@su!mit@ value$@<<@ class$@#orm@>%)5

echo (%<td>%)5

echo (%<td !&color$@]SSSSSS@ 6idth$@I-^@>%)5echo (%<input t"pe$@su!mit@ name$@su!mit@ value$@>>@ class$@#orm@>%)5

echo (%<td>%)5

echo (%<tr>%)5



Primer 2i# (3sec$$%%) ;

include(%sec'inc'php%)5

=

elsei# (3sec$$%2%) ;

include(%sec2'inc'php%)5

=

elsei# (3sec$$%,%) ;

include(%sec,'inc'php%)5

=elsei# (3sec$$%O%) ;

include(%secO'inc'php%)5

=

wp-predavanja_2.ppt

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