PHP: Hypertext Preprocessor

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PHP:HypertextPreprocessorDownloadsDocumentationGetInvolvedHelpGettingStarted Introduction AsimpletutorialLangueReference Basicsyntax Types Variables Constants Expressions Operators ControlStructures Functions ClassesandObjects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes ReferencesExplained PredefinedVariables PredefinedExceptions PredefinedInterfacesandClasses PredefinedAttributes Contextoptionsandparameters SupportedProtocolsandWrappersSecurity Introduction Generalconsiderations InstalledasCGIbinary InstalledasanApachemodule SessionSecurity FilesystemSecurity DatabaseSecurity ErrorReporting UserSubmittedData HidingPHP KeepingCurrentFeatures HTTPauthenticationwithPHP Cookies Sessions DealingwithXForms Handlingfileuploads Usingremotefiles Connectionhandling PersistentDatabaseConnections Commandlineuse GarbeCollection DTraceDynamicTracingFunctionReference AffectingPHP'sBehiour AudioFormatsManipulation AuthenticationServices CommandLineSpecificExtensions CompressionandArchiveExtensions CryptographyExtensions DatabaseExtensions DateandTimeRelatedExtensions FileSystemRelatedExtensions HumanLangueandCharacterEncodingSupport ImeProcessingandGeneration MailRelatedExtensions MathematicalExtensions Non-TextMIMEOutput ProcessControlExtensions OtherBasicExtensions OtherServices SearchEngineExtensions ServerSpecificExtensions SessionExtensions TextProcessing VariableandTypeRelatedExtensions WebServices WindowsOnlyExtensions XMLManipulation GUIExtensionsKeyboardShortcuts?ThishelpjNextmenuitemkPreviousmenuitemgpPreviousmanpegnNextmanpeGScrolltobottomggScrolltotopghGotohomepegsGotosearch(currentpe)/FocussearchboxApopulargeneral-purposescriptinglanguethatisespeciallysuitedtowebdevelopment.Fast,flexibleandprmatic,PHPpowerseverythingfromyourblogtothemostpopularwebsitesintheworld.What'snewin8.3Download8.3.6·Changelog·Upgrading8.2.18·Changelog·Upgrading8.1.28·Changelog·Upgrading24Apr2024Statementonglibc/iconvVulnerability Recently,abuginglibcversion2.39andolder(CVE-2024-2961)wasuncovered whereabufferoverflowincharactersetconversionsto theISO-2022-CN-EXTcharactersetcanresultinremotecodeexecution. ThisspecificbufferoverflowinglibcisexploitablethroughPHP, whichusestheiconvfunctionalityinglibctodocharacterset conversions.AlthoughthebugisexploitableinthecontextofthePHP Engine,thebugisnotinPHP.Itisalsonotdirectlyexploitable remotely. Therearenumerousreportsonlinewithtitleslike"Mitigatingthe iconvVulnerabilityforPHP(CVE-2024-2961)"or"PHPUnderAttack".These titlesaremisleadingasthisisnotabuginPHPitself. Currentlythereisnofixforthisissue,butthereisaworkaround describedinGLIBC VulnerabilityonServersServingPHP.Itexplainsawayhowtoremove theproblematiccharactersetfromglibc.Performthisprocedureforevery gconv-modules-extra.conffilethatisailableonyoursystem. Additionallyitisalsogoodpracticeforapplicationstoacceptonly specificcharsets,withanallow-list. SomeLinuxdistributionssuchasDebian, CentOS,andothers,alreadyhepublishedpatchedvariantsofglibc. Pleaseupgradeassoonaspossible. Onceanupdateisailableinglibc,updatingthatpackeonyour Linuxmachinewillbeenoughtoalleviatetheissue.Youdonotneedto updatePHP,asglibcisadynamicallylinkedlibrary. PHPusersonWindowsarenotaffected. TherewillthereforealsonotbeanewversionofPHPforthis vulnerability.12Apr2024PHP8.1.28Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.1.28.Thisisasecurityrelease.AllPHP8.1usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.1.28pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.11Apr2024PHP8.3.6Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.3.6.Thisisasecurityrelease.AllPHP8.3usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.3.6pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.11Apr2024PHP8.2.18Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.2.18.Thisisasecurityrelease.AllPHP8.2usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.2.18pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.14Mar2024PHP8.3.4Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.3.4.Thisisabugfixrelease.AllPHP8.3usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.3.4pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.14Mar2024PHP8.2.17Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.2.17.Thisisabugfixrelease.AllPHP8.2usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.2.17pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.15Feb2024PHP8.2.16Released!ThePHPdevelopmentteamannouncestheimmediateailabPHP: Hypertext PreprocessorilityofPHP8.2.16.Thisisabugfixrelease.AllPHP8.2usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.2.16pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.15Feb2024PHP8.3.3Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.3.3.Thisisabugfixrelease.AllPHP8.3usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.3.3pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.18Jan2024PHP8.2.15Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.2.15.Thisisabugfixrelease.AllPHP8.2usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.2.15pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.18Jan2024PHP8.3.2Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.3.2.Thisisabugfixrelease.AllPHP8.3usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.3.2pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.21Dec2023PHP8.2.14Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.2.14.Thisisabugfixrelease.AllPHP8.2usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.2.14pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.21Dec2023PHP8.1.27Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.1.27.Thisisabugfixrelease.AllPHP8.1usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.1.27pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.21Dec2023PHP8.3.1Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.3.1.Thisisabugfixrelease.AllPHP8.3usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.3.1pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.23Nov2023PHP8.1.26Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.1.26.Thisisabugfixrelease.AllPHP8.1usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.1.26pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.23Nov2023PHP8.3.0Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.3.0.ThisreleasemarksthelatestminorreleaseofthePHPlangue.PHP8.3comeswithnumerousimprovementsandnewfeaturessuchas:TypedClassConstantsFetchclassconstantdynamicallysyntaxReadonlyAmendmentsOverrideAttributeNewRandomizermethodRandom\Randomizer::getBytesFromStringNewfunctionjson_validateAndmuchmuchmore...ForsourcedownloadsofPHP8.3.0pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.ThemigrationguideisailableinthePHPManual.Pleaseconsultitforthedetailedlistofnewfeaturesandbackwardincompatiblechanges.Kudostoallthecontributorsandsupporters!23Nov2023PHP8.2.13Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.2.13.Thisisabugfixrelease.AllPHP8.2usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.2.13pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.09Nov2023PHP8.3.0RC6ailablefortestingThePHPteamispleasedtoannouncethereleaseofPHP8.3.0,RC6.Thisisthesixthandfinalreleasecandidate,continuingthePHP8.3releasecycle,theroughoutlineofwhichisspecifiedinthePHPWiki.ForsourcedownloadsofPHP8.3.0,RC6pleasevisitthedownloadpe.Pleasecarefullytestthisversionandreportanyissuesfoundinthebugreportingsystem.PleaseDONOTusethisversioninproduction,itisanearlytestversion.Formoreinformationonthenewfeaturesandotherchanges,youcanreadtheNEWSfileortheUPGRADINGfileforacompletelistofupgradingnotes.Thesefilescanalsobefoundinthereleasearchive.Thenextreleasewillbetheproduction-ready,generalailabilityrelease,plannedfor23November2023.ThesignaturesforthereleasecanbefoundinthemanifestorontheQAsite.ThankyouforhelpingusmakePHPbetter.26Oct2023PHP8.1.25Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.1.25.Thisisabugfixrelease.AllPHP8.1usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.1.25pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.26Oct2023PHP8.2.12Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.2.12.Thisisabugfixrelease.AllPHP8.2usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.2.12pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.26Oct2023PHP8.3.0RC5ailablefortestingThePHPteamispleasedtoannouncethereleaseofPHP8.3.0,RC5.Thisisthefifthreleasecandidate,continuingthePHP8.3releasecycle,theroughoutlineofwhichisspecifiedinthePHPWiki.ForsourcedownloadsofPHP8.3.0,RC5pleasevisitthedownloadpe.Pleasecarefullytestthisversionandreportanyissuesfoundinthebugreportingsystem.PleaseDONOTusethisversioninproduction,itisanearlytestversion.Formoreinformationonthenewfeaturesandotherchanges,youcanreadtheNEWSfileortheUPGRADINGfileforacompletelistofupgradingnotes.Thesefilescanalsobefoundinthereleasearchive.Thenextreleasewillbethefourthreleasecandidate(RC5),plannedfor26October2023.ThesignaturesforthereleasecanbefoundinthemanifestorontheQAsite.ThankyouforhelpingusmakePHPbetter.12Oct2023PHP8.3.0RC4ailablefortestingThePHPteamispleasedtoannouncethereleaseofPHP8.3.0,RC4.Thisisthefourthreleasecandidate,continuingthePHP8.3releasecycle,theroughoutlineofwhichisspecifiedinthePHPWiki.ForsourcedownloadsofPHP8.3.0,RC4pleasevisitthedownloadpe.Pleasecarefullytestthisversionandreportanyissuesfoundinthebugreportingsystem.PleaseDONOTusethisversioninproduction,itisanearlytestvePHP: Hypertext Preprocessorrsion.Formoreinformationonthenewfeaturesandotherchanges,youcanreadtheNEWSfileortheUPGRADINGfileforacoPHP: Hypertext Preprocessormpletelistofupgradingnotes.Thesefilescanalsobefoundinthereleasearchive.Thenextreleasewillbethefifthreleasecandidate(RC5),plannedfor26October2023.ThesignaturesforthereleasecanbefoundinthemanifestorontheQAsite.ThankyouforhelpingusmakePHPbetter.28Sep2023PHP8.1.24Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.1.24.Thisisabugfixrelease.AllPHP8.1usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.1.24pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.28Sep2023PHP8.3.0RC3ailablefortestingThePHPteamispleasedtoannouncethereleaseofPHP8.3.0,RC3.Thisisthethirdreleasecandidate,continuingthePHP8.3releasecycle,theroughoutlineofwhichisspecifiedinthePHPWiki.ForsourcedownloadsofPHP8.3.0,RC3pleasevisitthedownloadpe.Pleasecarefullytestthisversionandreportanyissuesfoundinthebugreportingsystem.PleaseDONOTusethisversioninproduction,itisanearlytestversion.Formoreinformationonthenewfeaturesandotherchanges,youcanreadtheNEWSfileortheUPGRADINGfileforacompletelistofupgradingnotes.Thesefilescanalsobefoundinthereleasearchive.Thenextreleasewillbethefourthreleasecandidate(RC4),plannedfor12October2023.ThesignaturesforthereleasecanbefoundinthemanifestorontheQAsite.ThankyouforhelpingusmakePHPbetter.28Sep2023PHP8.2.11Released!ThePHPdevelopmentteamannouncestheimmediateailabilityofPHP8.2.11.Thisisabugfixrelease.AllPHP8.2usersareencouredtoupgradetothisversion.ForsourcedownloadsofPHP8.2.11pleasevisitourdownloadspe,Windowssourceandbinariescanbefoundonwindows.php.net/download/.ThelistofchangesisrecordedintheChangeLog.14Sep2023PHP8.3.0RC2ailablefortestingThePHPteamispleasedtoannouncethereleaseofPHP8.3.0,RC2.Thisisthesecondreleasecandidate,continuingthePHP8.3releasecycle,theroughoutlineofwhichisspecifiedinthePHPWiki.ForsourcedownloadsofPHP8.3.0,RC2pleasevisitthedownloadpe.Pleasecarefullytestthisversionandreportanyissuesfoundinthebugreportingsystem.PleaseDONOTusethisversioninproduction,itisanearlytestversion.Formoreinformationonthenewfeaturesandotherchanges,youcanreadtheNEWSfileortheUPGRADINGfileforacompletelistofupgradingnotes.Thesefilescanalsobefoundinthereleasearchive.Thenextreleasewillbethethirdreleasecandidate(RC3),plannedfor28September2023.ThesignaturesforthereleasecanbefoundinthemanifestorontheQAsite.ThankyouforhelpingusmakePHPbetter.OlderNewsEntriesThePHPFoundationThePHPFoundationisacollectiveofpeopleandorganizations,unitedinthemissiontoensurethelong-termprosperityofthePHPlangue.DonateUpcomingconferencesCakeFest2024:TheOfficialCakePHPConferencePHPVelhoOeste2024SymfonyConVienna2024WebSummerCamp2024UserGroupEventsSpecialThanksSocialmedia@official_php@php@fosstodon.org©2001-2024ThePHPGroupMyPHP.netContactOtherPHP.netsitesPrivacypolicyViewSource