PHP With MYSQL Presentation

8/18/2019 PHP With MYSQL Presentation

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PHP with

MYSQL

Prepared by : Noreen M. Arcangel, MIT


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Introduction• HTML Review (or!" and #tyle"$eet"%

• PHP and My#&L 'ene

• More About PHP (Hi"tory and )"age%

• PHP In"tallation


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*$at +ou #$ould Already now• -eore you continue you "$ould $ave a ba"ic

under"tanding o t$e ollowing:

• HTML

• /##

• 0ava#cript


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Introduction to PHP• PHP i" a "erver "cripting language, and i" a

powerul tool or !a1ing dyna!ic and

interactive *eb page" 2uic1ly.• PHP "cript" are e3ecuted on t$e "erver.

• PHP "tand" or PHP: Hypertext Preprocessor

•

'eveloped by Rasmus Lerdorf in 1994 • It i" a powerul "erver4"ide "cripting language

or creating dyna!ic and interactive web"ite".


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Introduction to PHP• It i" an open "ource "otware, w$ic$ i" widely u"ed and ree to

download and u"e (PHP i" R55 to download ro! t$e o6cial PHPre"ource: www.p$p.net%.

• It i" an e6cient alternative to co!petitor" "uc$ a" Micro"ot7" A#P.• PHP i" perectly "uited or *eb develop!ent and can be

e!bedded directly into t$e HTML code.

• T$e PHP "ynta3 i" very "i!ilar to 0ava#cript, Perl and /.

• PHP i" oten u"ed toget$er wit$ Apac$e (web "erver% on variou"operating "y"te!". It al"o "upport" I#API and can be u"ed wit$Micro"ot7" II# on *indow".

• PHP "upport" !any databa"e" (My#&L, Inor!i3, 8racle, #yba"e,#olid, Po"tgre#&L, 9eneric 8'-/, etc.%


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#erver4#ide #cripting• A "cript; i" a collection o progra! or "e2uence o

in"truction" t$at i" interpreted or carried out by

anot$er progra! rat$er t$an by t$e co!puterproce""or.

• /lient4"ide

• #erver4"ide

• In "erver4"ide "cripting, ("uc$ a" PHP, A#P% t$e "cript i"proce""ed by t$e "erver Li1e: Apac$e, /oldu"ion,I#API and Micro"ot7" II# on *indow".

• /lient4"ide "cripting "uc$ a" 0ava#cript run" on t$e web

brow"er.


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*$at i" PHP• PHP i" an acrony! or


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*$y PHP?

• PHP run" on variou" plator!" (*indow", Linu3,)ni3, Mac 8# @, etc.%

• PHP i" co!patible wit$ al!o"t all "erver" u"ed

today (Apac$e, II#, etc.%• PHP "upport" a wide range o databa"e"

• PHP i" ree. 'ownload it ro! t$e o6cial PHP

re"ource: www.p$p.net• PHP i" ea"y to learn and run" e6ciently on t$e

"erver "ide

http://www.php.net/http://www.php.net/


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*$at you need to develop PHPApplication:

• In"tall Apac$e (or II#% on your own "erver, in"tallPHP, and My#&L

8R

• In"tall *a!p"erver (a bundle o PHP, Apac$e,and My#2l "erver% on your own "erverB!ac$ine


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PHP In"tallation 'ownload" ree'ownload

• PHP: $ttp:BBwww.p$p.netBdownload".p$p

• My#&L 'ataba"e:

$ttp:BBwww.!y"2l.co!Bdownload"Binde3.$t!l• Apac$e #erver:

$ttp:BB$ttpd.apac$e.orgBdownload.cgi

• How to in"tall and congure apac$e

• Here i" a lin1 to a good tutorial ro! PHP.net on$ow to in"tall PHPC:$ttp:BBwww.p$p.netB!anualBenBin"tall.p$p


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PHP In"tallation 'ownload" ree'ownload

• PHP: $ttp:BBwww.p$p.netBdownload".p$p

• My#&L 'ataba"e:

$ttp:BBwww.!y"2l.co!Bdownload"Binde3.$t!l• Apac$e #erver:

$ttp:BB$ttpd.apac$e.orgBdownload.cgi

• How to in"tall and congure apac$e

• Here i" a lin1 to a good tutorial ro! PHP.net on$ow to in"tall PHPC:$ttp:BBwww.p$p.netB!anualBenBin"tall.p$p


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-a"ic PHP #ynta3

D?p$pBB PHP code goe"$ere?E

• DF'8/T+P5 $t!lED$t!lEDbodyE

D$GEMy r"t PHPpageDB$GE

D?p$pec$o


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/o!!ent" in PHP

D$t!lEDbodyE

D?p$pBB T$i" i" a "ingle line co!!ent

T$i" i" al"o a "ingle line co!!ent

BJ T$i" i" a !ultiple line" co!!ent bloc1 t$at "pan" over !ore t$anone line

JB?E

DBbodyEDB$t!lE


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• ec$o 4 can output one or !ore "tring"

• print 4 can only output one "tring, and return" alway" G

echo and print Statements

D?p$p

ec$o


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PHP !aria"#es

•

Kariable" are


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•

Ru#es for PHP $aria"#es• A variable "tart" wit$ t$e "ign, ollowed by t$e

na!e o t$e variable

• A variable na!e !u"t "tart wit$ a letter or t$e

under"core c$aracter• A variable na!e cannot "tart wit$ a nu!ber

• A variable na!e can only contain alp$a4nu!eric

c$aracter" and under"core" (A4O, Q4, and S %• Kariable na!e" are ca"e "en"itive (y and +

are two dierent variable"%


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PHP is a Loose#y %yped Lan&ua&e• In t$e e3a!ple above, notice t$at we did not

$ave to tell PHP w$ic$ data type t$e variable i".

• PHP auto!atically convert" t$e variable to t$ecorrect data type, depending on it" value.


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PHP !aria"#es ScopePHP $a" t$ree dierent variable "cope":

• local

• global

• "tatic


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• A variable declared outside a unction $a" a

'L()*L S+(P, and can only be acce""edoutside a unction.

• A variable declared within a unction $a" aL(+*L S+(P, and can only be acce""edwithin t$at unction.

• T$e ollowing e3a!ple te"t" variable" wit$ localand global "cope:

• Loca# and '#o"a# Scope


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D?p$p

3C BB global "cope

unction !yTe"t(% U yGQ BB local "cope ec$o


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T$e o"a# -eyword i" u"ed to acce"" a global variable ro! wit$in a

unction.

53a!ple

D?p$p3C

yGQ

unction !yTe"t(% U global 3,y y3y

V

!yTe"t(%ec$o y BB output" GC?E

PHP %he o"a# .eyword


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• 53a!ple

D?p$p

unction !yTe"t(% U "tatic 3Q ec$o 3

3V

!yTe"t(%!yTe"t(%

!yTe"t(%

?E

• eac$ ti!e t$e unction i" called, t$at variable will "till $ave t$einor!ation it contained ro! t$e la"t ti!e t$e unction wa" called.

PHP %he static .eyword


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•

#tring• Integer

• loating point nu!ber"

• -oolean

• Array

• 8bWect

• N)LL.

/ata %ypes


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• A "tring i" a "e2uence o c$aracter", li1e


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•

An integer i" a nu!ber wit$out deci!al".• Rule" or integer":

• An integer !u"t $ave at lea"t one digit (Q4%

• An integer cannot contain co!!a or blan1"

• An integer !u"t not $ave a deci!al point

• An integer can be eit$er po"itive or negative

• Integer" can be "pecied in t$ree or!at":

deci!al (GQ4ba"ed%, $e3adeci!al (G4ba"ed 4pre3ed wit$ Q3% or octal (X4ba"ed 4 pre3edwit$ Q%

PHP 0nte&ers


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0nte&er ,xamp#e

,xamp#e

D?p$p3 CXC

varSdu!p(3%ec$o


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PHP #oatin& Point Num"ers

• A Zoating point nu!ber i" a nu!ber wit$ adeci!al point or a nu!ber in e3ponential or!.

53a!ple:D?p$p3 GQ.=C

varSdu!p(3%?E


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Strin& unctions

• T$e PHP "trlen(% unction

• T$e "trlen(% unction return" t$e lengt$ o a"tring, in c$aracter".

• T$e e3a!ple below return" t$e lengt$ o t$e"tring


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%he PHP strpos23 function

• T$e "trpo"(% unction i" u"ed to "earc$ or a"pecied c$aracter or te3t wit$in a "tring.

• I a !atc$ i" ound, it will return t$e c$aracter

po"ition o t$e r"t !atc$. I no !atc$ i" ound,it will return AL#5.

• 53a!ple

D?p$pec$o "trpo"(


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T$e e3a!ple below create" a casesensiti$e constant, wit$ t$e value o


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PHP (perators


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(perators(perator Name ,xamp#e Resu#t

5 Addition 3 y #u! o 3 and y

#ubtraction 3 4 y 'ierence o 3 and y

6 Multiplication 3 J y Product o 3 and y

7 'ivi"ion 3 B y &uotient o 3 and y

8 Modulu" 3 [ y Re!ainder o 3 divided by y

66 53ponentiation 3 JJ y Re"ult o rai"ing 3 to t$e y7t$ power(Introduced in PHP C.%


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*ssi&nment (perators

*ssi&nment Same as /escription

x : y 3 y T$e let operand get" "et to t$e value o t$e e3pre""ion on t$e rig$t

x 5: y 3 3 y Addition

x : y 3 3 4 y #ubtraction

x 6: y 3 3 J y Multiplication

x 7: y 3 3 B y 'ivi"ion

x 8: y 3 3 [ y Modulu"


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Strin& (perators

(perator Name ,xamp#e Resu#t

/oncatenation t3tG


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Incre!ent B 'ecre!ent 8perator"

(perator Name /escription

55;x Pre4incre!ent Incre!ent" 3 by one, t$en return" 3

;x55 Po"t4incre!ent Return" 3, t$en incre!ent" 3 by one

;x Pre4decre!ent 'ecre!ent" 3 by one, t$en return" 3

;x Po"t4decre!ent Return" 3, t$en decre!ent" 3 by one


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/o!pari"on 8perator"

(perator Name ,xamp#e Resu#t:: 52ual 3 y True i 3 i" e2ual to y

::: Identical 3 y True i 3 i" e2ual to y, and t$ey are o

t$e "a!e type

9reater t$an 3 E y True i 3 i" greater t$an y

= Le"" t$an 3 D y True i 3 i" le"" t$an y

>: 9reater t$an or e2ual to 3 E y True i 3 i" greater t$an or e2ual to y

=: Le"" t$an or e2ual to 3 D y True i 3 i" le"" t$an or e2ual to y


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Logical 8perator"


and And 3 and y True i bot$ 3 and y are true

or 8r 3 or y True i eit$er 3 or y i" true

xor @or 3 3or y True i eit$er 3 or y i" true, but notbot$

@@ And 3 \\ y True i bot$ 3 and y are true

AA 8r 3 ]] y True i eit$er 3 or y i" true

< Not F3 True i 3 i" not true


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*rray (perators


5 )nion 3 y )nion o 3 and y (but duplicate 1ey"

are not overwritten%

:: 52uality 3 y True i 3 and y $ave t$e "a!e

1eyBvalue pair"

::: Identity 3 y True i 3 and y $ave t$e "a!e1eyBvalue pair" in t$e "a!e order and

o t$e "a!e type"


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53a!ple

D?p$p3 array(


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Logical #tructure

• #e2uential #tructure

• /onditional #tructureB#tate!ent

•

Loop #tructureB#tate!ent


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PHP /onditional #tate!ent"• if statement 4 e3ecute" "o!e code

only i a "pecied condition i" true

• ife#se statement 4 e3ecute"

"o!e code i a condition i" true andanot$er code i t$e condition i" al"e

•

ife#seife#se statement 4"elect" one o "everal bloc1" o codeto be e3ecuted

•

switch statement 4 "elect" one o


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i #tate!ent

T$e i "tate!ent i"u"ed to e3ecute"o!e code on#y if a

speciBedcondition is true.

#ynta3

i (condition% U

code to beexecuted if conditionis trueV

53a!pleD?p$ptdate(


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i...el"e #tate!ent• )"e t$e i....el"e

"tate!ent to e3ecute"o!e code if acondition is true

and another code ifthe condition isfa#se.

#ynta3

i (condition% U code to be executed ifcondition is true;V el"e U code to be executed ifcondition is false;

• 53a!pleD?p$ptdate(


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i...el"ei....el"e #tate!ent• )"e t$e i....el"ei...el"e

"tate!ent to se#ectone of se$era#"#oc-s of code to "e

executed.• #ynta3

• i (condition% U code to be executed ifcondition is true;

V el"ei (condition% U code to be executed ifcondition is true;V el"e U code to be executed if

condition is false;

,xamp#eD?p$ptdate(


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"witc$ #tate!ent• T$e "witc$ "tate!ent i"

u"ed to peror! dierentaction" ba"ed on dierentcondition".

• #ynta3

• "witc$ (n% U ca"e label1: code to be executed ifn=label1; brea1

ca"e label2: code to be executed ifn=label2; brea1 ...

deault: code to be executed if n

53a!ple $ere


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Loop #tructure• In PHP, we $ave t$e ollowing looping

"tate!ent":

• whi#e 4 loop" t$roug$ a bloc1 o code a" long

a" t$e "pecied condition i" true• dowhi#e 4 loop" t$roug$ a bloc1 o code

once, and t$en repeat" t$e loop a" long a" t$e"pecied condition i" true

• for 4 loop" t$roug$ a bloc1 o code a "peciednu!ber o ti!e"

• foreach 4 loop" t$roug$ a bloc1 o code or

eac$ ele!ent in an array


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w$ile Loop• T$e w$ile loop

e3ecute" a bloc1o code a" long a"

t$e "peciedcondition i" true.

• #ynta3

w$ile (condition istrue% U

code to be

53a!pleD?p$p3G

w$ile(3DC% U ec$o


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do...w$ile Loop• T$e do...w$ile loop

will alway" e3ecutet$e bloc1 o codeonce, it will t$en

c$ec1 t$e condition,and repeat t$e loopw$ile t$e "peciedcondition i" true.

• #ynta3

• do U code to beexecuted; w$ile condition is

• 53a!pleD?p$p3G

do U ec$o


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oreac$ Loop• T$e oreac$ loop

wor1" only onarray", and i" u"ed

to loop t$roug$eac$ 1eyBvaluepair in an array.

• #ynta3

oreac$(array a" value% U code to beexecuted;V

53a!pleD?p$pcolor" array(


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unction"• PHP $a" !ore

t$an GQQQ built4inunction".

•

PHP )"er 'enedunction"

• A unction i" abloc1 o

"tate!ent" t$atcan be u"edrepeatedly in aprogra!.

• A unction will note3ecutei!!ediately w$en

a page load".


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+reate a Cser /eBned

unction• A u"er dened unction declaration"tart" wit$ t$e word


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+reate a Cser /eBned

unction• 53a!pleD?p$p

unction Me""age(% U ec$o


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unction *r&uments• A u"er dened unction declaration "tart" wit$

t$e word


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unction *r&uments• ,xamp#e

• D?p$punction a!ilyNa!e(na!e, year% U

ec$o


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unctions

Returnin& $a#ues• ,xamp#e• D?p$p

unction "u!(3, y% U

O 3 y return OV

ec$o


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Dhat is an *rrayE• An array i" a "pecial variable, w$ic$ can $old

!ore t$an one value at a ti!e.

•

An array can $old !any value" under a "inglena!e, and you can acce"" t$e value" byreerring to an inde3 nu!ber.


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%hree types of

arrays• 0ndexed arrays 4 Array" wit$ a nu!eric inde3

• *ssociati$e arrays 4 Array" wit$ na!ed 1ey"

• Mu#tidimensiona# arrays 4 Array" containingone or !ore array"


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PHP Inde3ed Array"

53a!ple

car" array(Hyundai


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Loop T$roug$ an Inde3ed

Array• 53a!ple• D?p$p

car" array(Hyundai


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PHP Inde3ed Array"

53a!ple

car" array(Hyundai


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PHP A""ociative Array"

A""ociative array" are array" t$at u"e na!ed 1ey"t$at you a""ign to t$e!.

T$ere are two way" to create an a""ociativearray:

age array(


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53a!ple

T$e na!ed 1ey" can t$en be u"ed in a "cript:

53a!ple

D?p$p

age array(


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Sort unctions or *rrays

• "ort(% 4 "ort array" in a"cending order

• r"ort(% 4 "ort array" in de"cending order

• a"ort(% 4 "ort a""ociative array" in a"cending

order, according to t$e value• 1"ort(% 4 "ort a""ociative array" in a"cending

order, according to t$e 1ey

•

ar"ort(% 4 "ort a""ociative array" in de"cendingorder, according to t$e value

• 1r"ort(% 4 "ort a""ociative array" in de"cendingorder, according to t$e 1ey


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9lobal Kariable" 4#uperglobal"


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• #everal predened variable" in PHP are


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PHP ;FS,R!,R

A "uper global variable w$ic$ $old" inor!ationabout $eader", pat$", and "cript location".


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PHP ;FS,R!,R,#ement7+ode /escription

;FS,R!,RGPHPFS,LI Return" t$e lena!e o t$e currently e3ecuting "cript

;FS,R!,RG'*%,D*YF0N%,R*+,I Return" t$e ver"ion o t$e /o!!on 9ateway Interace (/9I% t$e "erver i" u"ing

;FS,R!,RGS,R!,RF*//RI Return" t$e IP addre"" o t$e $o"t "erver

;FS,R!,RGS,R!,RFN*M,I Return" t$e na!e o t$e $o"t "erver ("uc$ a" www.w="c$ool".co!%

;FS,R!,RGS,R!,RFS(%D*R,I Return" t$e "erver identication "tring ("uc$ a" Apac$eB..Y%

;FS,R!,RGS,R!,RFPR(%(+(LI Return" t$e na!e and revi"ion o t$e inor!ation protocol ("uc$ a" HTTPBG.G%

;FS,R!,RGR,QC,S%FM,%H(/I Return" t$e re2ue"t !et$od u"ed to acce"" t$e page ("uc$ a" P8#T%

;FS,R!,RGR,QC,S%F%0M,I Return" t$e ti!e"ta!p o t$e "tart o t$e re2ue"t ("uc$ a" G=^^X^Y%

;FS,R!,RGQC,RYFS%R0N'I Return" t$e 2uery "tring i t$e page i" acce""ed via a 2uery "tring

;FS,R!,RGH%%PF*++,P%I Return" t$e Accept $eader ro! t$e current re2ue"t

;FS,R!,RGH%%PF*++,P%F+H*RS,%I Return" t$e AcceptS/$ar"et $eader ro! t$e current re2ue"t ("uc$ a" ut4X,I#84XXC4G%

;FS,R!,RGH%%PFH(S%I Return" t$e Ho"t $eader ro! t$e current re2ue"t

;FS,R!,RGH%%PFR,,R,RI Return" t$e co!plete )RL o t$e current page (not reliable becau"e not all u"er4agent" "upport it%

;FS,R!,RGH%%PSI I" t$e "cript 2ueried t$roug$ a "ecure HTTP protocol

;FS,R!,RGR,M(%,F*//RI Return" t$e IP addre"" ro! w$ere t$e u"er i" viewing t$e current page

;FS,R!,RGR,M(%,FH(S%I Return" t$e Ho"t na!e ro! w$ere t$e u"er i" viewing t$e current page

;FS,R!,RGR,M(%,FP(R%I Return" t$e port being u"ed on t$e u"er7" !ac$ine to co!!unicate wit$ t$e web "erver

;FS,R!,RGS+R0P%F0L,N*M,I Return" t$e ab"olute pat$na!e o t$e currently e3ecuting "cript

;FS,R!,RGS,R!,RF*/M0NI Return" t$e value given to t$e #5RK5RSA'MIN directive in t$e web "erver conguration le (i your "cript run" on a virtual $o"t, it will be t$e

value dened or t$at virtual $o"t% ("uc$ a" "o!eonew="c$ool".co!%

;FS,R!,RGS,R!,RFP(R%I Return" t$e port on t$e "erver !ac$ine being u"ed by t$e web "erver or co!!unication ("uc$ a" XQ%

;FS,R!,RGS,R!,RFS0'N*%CR,I Return" t$e "erver ver"ion and virtual $o"t na!e w$ic$ are added to "erver4generated page"

;FS,R!,RGP*%HF%R*NSL*%,/I Return" t$e le "y"te! ba"ed pat$ to t$e current "cript

;FS,R!,RGS+R0P%FN*M,I Return" t$e pat$ o t$e current "cript

;FS,R!,RGS+R0P%FCR0I Return" t$e )RI o t$e current page


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PHP SR5&)5#T

• i" u"ed to collect data ater "ub!itting anHTML or!.D$t!lE

DbodyEDor! !et$od


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PHP SR5&)5#T

• i" u"ed to collect data ater "ub!itting anHTML or!.D$t!lE

DbodyEDor! !et$od


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PHP SP8#T

• i" widely u"ed to collect or! data ater"ub!itting an HTML or! wit$ !et$od


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• 53a!ple

D$t!lEDbodyE

Dor! !et$od


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PHP ;F',%

•

can al"o be u"ed to collect or! dataater "ub!itting an HTML or! wit$!et$od


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PHP ;F',%

•

can al"o be u"ed to collect or! dataater "ub!itting an HTML or! wit$!et$od


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,xamp#e of PHP ;F',%

T$e e3a!ple below "$ow" t$e code in


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(RM H*N/L0N'


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PHP 4 A #i!ple HTML or!

53a!pleD$t!lEDbodyE

Dor! action


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T$e


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95T v". P8#T

• Inor!ation "ent ro! a or! wit$ t$e 95T!et$od i" $isi"#e to e$eryone (all variablena!e" and value" are di"played in t$e )RL%.

• 95T al"o $a" li!it" on t$e a!ount oinor!ation to "end.

• T$e li!itation i" about QQQ c$aracter"


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95T v". P8#T

• Inor!ation "ent ro! a or! wit$ t$e P8#T!et$od i" in$isi"#e to others (allna!e"Bvalue" are e!bedded wit$in t$e body o

t$e HTTP re2ue"t% and

• $a" no #imits on t$e a!ount o inor!ation to"end.

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PHP With MYSQL Presentation

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