jsj_2011最新整理php需要注意的几点

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1、PHP⾡ҟPHPᰃϔ䖭⫼Ѣ߯ᓎࡼࡼWEB义䴶ⱘ᳡ࡵッ㛮ᴀ䇁㿔DŽབৠASP੠ColdFusionˈ⫼᠋ৃҹ⏋ড়Փ⫼PHP੠HTML㓪ݭWEB义䴶ˈᔧ᠋᠋㗙⌣⌣ࠄ䆹义䴶ᯊˈ᳡ࡵッӮ佪ܜӀ义䴶ЁⱘPHPҸؐ㸠໘⧚ˈ✊ৢᡞ໘⧚ৢⱘ㒧ᵰ䖲ৠHTMLݙᆍϔ䍋Ӵ䗕ࠄ᠋᠋ッⱘ⌣⌣఼DŽԚᰃϢASP៪ColdFusionϡৠˈPHPᰃϔ䖭⑤ҷⷕᓔᬒ⿟ᑣˈᢹ᳝ᕜདⱘ䎼ᑇৄݐᆍᗻDŽ⫼᠋ৃҹ೼WindowsNT㋏㒳ҹঞ䆌໮⠜ᴀⱘUnix㋏㒳Ϟ䖤㸠PHPˈ㗠ϨৃҹᇚPHP԰ЎApache᳡ࡵ఼ⱘݙ㕂῵ഫ៪CGI⿟ᑣ䖤㸠DŽ䰸њ㛑໳㊒⹂ⱘ᥻ࠊWE

2、B义䴶ⱘ᠋⼎ݙᆍП໪ˈ᠋䖬ৃҹ䗮㒣Փ⫼PHPথ䗕HTTP⫼DŽ⫼᠋ৃҹ䗮㒣PHP䆒㕂cookiesˈㅵ⧚⫼᠋䑿ӑ䅸߿ˈᑊӀ⫼᠋⌣⌣义䴶ؐ㸠䞡ᅮ⦄༈৥DŽPHP݋᳝䴲ᐌᔎ໻ⱘ᭄᥂ᑧᬃᣕࡳ㛑ˈ㛑໳᠋᠋޴ТⳂࠡ᠔᳝䕗Ў⌕㸠ⱘ᭄᥂ᑧ㋏㒳DŽℸ໪ˈPHPৃҹϢ໮Ͼ໪᥹ᑧ䲚៤ˈЎ⫼᠋ᦤկ᳈໮ⱘᅲ⫼ࡳ㛑ˈབ⫳៤PDF᭛ӊㄝDŽ⫼᠋ৃҹⳈ᥹೼WEB义䴶Ё䕧ܹPHPҸҷⷕˈ಴㗠ϡ䳔㽕ӏԩ⡍⅞ⱘᓔথ⦃๗DŽ೼WEB义䴶Ёˈ᠔᳝PHPҷⷕ䛑㹿ᬒ㕂೼Ā”ЁDŽℸ໪ˈ⫼᠋䖬ৃҹ䗝䗝Փ⫼䇌བ

3、ㄝⱘᔶᓣDŽPHPᓩ᪢Ӯ㞾ࡼ䅸߿ᑊ໘⧚义䴶Ё᠔᳝ԡѢPHPᅮ⬠ヺПᯊⱘҷⷕDŽPHP㛮ᴀ䇁㿔ⱘ䇁⊩㒧ᵘϢC䇁㿔੠Perl䇁㿔ⱘ䇁⊩亢Ḑ䴲ᐌⳌԐDŽ⫼᠋೼Փ⫼ব䞣ࠡϡ䳔㽕Ӏব䞣ؐ㸠ໄᯢDŽՓ⫼PHP߯ᓎ᭄ഫⱘ㒣⿟г䴲ᐌ⾡ㅔDŽPHP䖬݋᳝෎ᴀⱘ䴶৥Ӏ䈵ഫӊࡳ㛑ˈৃҹᵕ໻ⱘᮍ⫼᠋᳝ᬜഫ㒘੠ᇕ㺙㞾Ꮕ㓪ݭⱘҷⷕDŽPHP䇁⊩ὖ䗄A.෎ᴀ䇁⊩ेՓ߱⃵᥹㾺PHPⱘ⫼᠋гӮথ⦄㞾ᏅӀPHPⱘ䇁⊩亢Ḑᑊϡ䰠⫳DŽ՟བ˖<˛phpecho“Helloʽā˗˛>᠋⼎㒧ᵰЎ“HelloʽāDŽPHPЁˈ᠔᳝ⱘব䞣䛑ҹᷛ䅸“$”ᓔ༈DŽ៥

4、ӀৃҹӀϞ䗄ҷⷕخབϟᬍࡼ˖<˛php$greeting=“Helloʽā˗echo$greeting˗˛>ᬍবৢⱘҷⷕ᠋⼎㒧ᵰϡবDŽPHPЁՓ⫼Ā.”ヺো䖲᥹ϡৠⱘᄫヺІˈ㗠݊ᅗⱘㅫᴃ䖤ㅫヺ߭߭ᡓњ⌕㸠㓪⿟䇁㿔ⱘ亢ḐDŽВ՟བϟ˖<˛php$greeting=“Helloʽā˗$num=3+2˗$num++˗echo“$greeting$numpeopleʽā˗˛>᠋⼎㒧ᵰЎ“Helloʽ6peopleʽāDŽPHPӀ৘䖭䖤ㅫヺঞ䖤ㅫ䘏߭䛑᳝ϔ༫ᅠᭈⱘ䘏ᅮˈབᵰ⫼᠋݋᳝C៪C++䇁㿔ⱘ㓪⿟㚠᱃ⱘ䆱ˈৃҹথ⦄ϔߛ䛑ᕫᖗ

5、ᑨ᠟DŽϢPerl䇁㿔ϔ䖭ˈ೼PHPЁˈབᵰ೼ঠᓩোࣙ৿ⱘᄫヺІЁ৿᳝ব䞣ⱘ䆱ˈ䆹ব䞣ᇚ⫼Ⳍᑨⱘব䞣ؐ᳓ᤶ˗བᵰᄫヺІ㹿ㅔᓩোࣙ৿ˈ߭ϡخ᳓ᤶDŽ՟བ˖<˛php$name=‘PETER’˗$greeting_1=“Hello,$nameʽā˗$greeting_2=‘Hello,$nameʽÿ˗echo“$greeting_1̞n”˗echo“$greeting_2̞n”˗˛>᠋⼎㒧ᵰЎ˖Hello,PETERʽHello,$nameʽ˄⊼˖Ϟ䗄ҷⷕЁⱘĀ̞n”Ўᤶ㸠ヺˈা㛑೼ঠᓩোᄫヺІϟՓ⫼˅B.ব䞣PHPܕ䆌⫼

6、᠋䈵Փ⫼ᐌ䘏ব䞣ϔ䖭Փ⫼⦃๗ব䞣DŽ՟བˈ೼义䴶http://www.nba.com/scores/index.htmlЁࣙ৿བϟҷⷕ˖<˛phpecho“[$REQUEST_URI]”˗˛>߭䕧ߎ㒧ᵰЎ[/scores/index.html]C.᭄ഫ⫼᠋೼Փ⫼PHP߯ᓎ᭄ഫᯊˈৃҹᡞ᭄ഫ㋶ᓩ˄ࣙᣀᐌ䘏㋶ᓩ៪݇݇㋶ᓩ˅ࡴܹᮍᣀোЁDŽ՟བ˖$fruit[0]=‘banana’;$fruit[1]=‘apple’;$favorites['animal']=‘tiger’;$favorites['sports']=‘bas

7、ketball’;བᵰ⫼᠋೼৥᭄ഫ䌟ؐᯊϡᣛᯢ᭄ഫϟᷛˈPHPᇚ㞾ࡼᡞ䆹Ӏ䈵ࡴܹࠄ᭄ഫ᳿ሒDŽ՟བӀѢϞ䗄$fruit᭄ഫৃҹ⫼ҹϟᮍᓣ䌟ؐ㗠ᣕ㒧ᵰϡবˈ$fruit[]=‘banana’;$fruit[]=‘apple’;ৠ䖭ˈ೼PHPЁˈ⫼᠋䖬ৃҹḍ᥂䳔㽕ᓎゟ໮㓈᭄ഫDŽ՟བ˖$people[‘David’][‘shirt’]=‘blue’;$people[‘David’][‘car’]=‘red’;$people[‘Adam’][‘shirt’]=‘white’;$people[‘Adam’][‘car’]=‘s

8、ilver’;೼PHPЁˈ⫼᠋䖬ৃҹՓ⫼array()ߑ᭄ᖿ䗳ᓎゟ᭄ഫDŽ՟བ˖$fruit=array(‘banana’,‘apple’);$favorites=array(‘animal’=>‘tiger’,‘sports’=>‘basketball’);៪㗙Փ⫼array()ߑ᭄߯ᓎ໮㓈᭄ഫ˖$people=array(‘David’=>array(‘s