- CFML Reference User Guide
- ColdFusion functions
- ColdFusion functions by category
- Functions a-b
- Abs
- ACos
- AddSOAPRequestHeader
- AddSOAPResponseHeader
- AjaxLink
- AjaxOnLoad
- ApplicationStop
- ArrayAppend
- ArrayAvg
- ArrayClear
- ArrayContains
- ArrayContainsNoCase
- ArrayDelete
- ArrayDeleteAt
- ArrayDeleteNoCase
- ArrayEach
- ArrayFilter
- ArrayFind
- ArrayFindAll
- ArrayFindAllNoCase
- ArrayFindNoCase
- ArrayInsertAt
- ArrayIsDefined
- ArrayIsEmpty
- ArrayLen
- ArrayMap
- ArrayMax
- ArrayMin
- ArrayNew
- ArrayPrepend
- ArrayReduce
- ArrayResize
- ArraySet
- ArraySetMetadata
- ArraySlice
- ArraySort
- ArraySum
- ArraySwap
- ArrayToList
- Asc
- ASin
- Atn
- AuthenticatedContext
- AuthenticatedUser
- BinaryDecode
- BinaryEncode
- BitAnd
- BitMaskClear
- BitMaskRead
- BitMaskSet
- BitNot
- BitOr
- BitSHLN
- BitSHRN
- BitXor
- BooleanFormat
- Abs
- Functions-c-d
- CacheGet
- CacheGetAllIds
- CacheGetMetadata
- CacheGetProperties
- CacheGetSession
- CacheIdExists
- CachePut
- CacheRegionExists
- CacheRegionNew
- CacheRegionRemove
- CacheRemove
- CacheRemoveAll
- CacheSetProperties
- CallStackDump
- CallStackGet
- CanDeSerialize
- Canonicalize
- CanSerialize
- Ceiling
- CharsetDecode
- CharsetEncode
- Chr
- CJustify
- Compare
- CompareNoCase
- Cos
- CreateDate
- CreateDateTime
- CreateObject
- CreateObject: .NET object
- CreateObject: COM object
- CreateObject: component object
- CreateObject: CORBA object
- CreateObject: Java or EJB object
- CreateObject: web service object
- CreateODBCDate
- CreateODBCDateTime
- CreateODBCTime
- CreateSignedJWT
- CreateEncryptedJWT
- CreateTime
- CreateTimeSpan
- CreateUUID
- CSRFGenerateToken
- CSRFVerifyToken
- DateAdd
- DateCompare
- DateConvert
- DateDiff
- DateFormat
- DatePart
- DateTimeFormat
- Day
- DayOfWeek
- DayOfWeekAsString
- DayOfYear
- DaysInMonth
- DaysInYear
- DE
- DecimalFormat
- DecodeForHTML
- DecodeFromURL
- DecrementValue
- Decrypt
- DecryptBinary
- DeleteClientVariable
- Deserialize
- DeserializeJSON
- DeserializeXML
- DirectoryCopy
- DirectoryCreate
- DirectoryDelete
- DirectoryExists
- DirectoryList
- DirectoryRename
- DollarFormat
- DotNetToCFType
- Duplicate
- Functions-e-g
- EncodeForCSS
- EncodeForDN
- EncodeForHTML
- EncodeForHTMLAttribute
- EncodeForJavaScript
- EncodeForLDAP
- EncodeForURL
- EncodeForXML
- EncodeForXMLAttribute
- EncodeForXpath
- Encrypt
- EncryptBinary
- EntityDelete
- EntityLoad
- EntityLoadByExample
- EntityLoadByPK
- EntityMerge
- EntityNew
- EntityReload
- EntitySave
- EntityToQuery
- Evaluate
- Exp
- ExpandPath
- FileClose
- FileCopy
- FileDelete
- FileExists
- FileGetMimeType
- FileIsEOF
- FileMove
- FileOpen
- FileRead
- FileReadBinary
- FileReadLine
- FileSeek
- FileSetAccessMode
- FileSetAttribute
- FileSetLastModified
- FileSkipBytes
- FileUpload
- FileUploadAll
- FileWrite
- FileWriteLine
- Find
- FindNoCase
- FindOneOf
- FirstDayOfMonth
- Fix
- Floor
- FormatBaseN
- GeneratePBKDFKey
- GenerateSecretKey
- GetApplicationMetadata
- GetAuthUser
- GetBaseTagData
- GetBaseTagList
- GetBaseTemplatePath
- GetClientVariablesList
- GetComponentMetaData
- GetContextRoot
- GetCPUUsage
- GetCurrentTemplatePath
- GetDirectoryFromPath
- GetEncoding
- GetException
- GetFileFromPath
- GetFileInfo
- GetFreeSpace
- GetFunctionCalledName
- GetFunctionList
- GetGatewayHelper
- GetHttpRequestData
- GetHttpTimeString
- GetK2ServerDocCount
- GetK2ServerDocCountLimit
- GetLocale
- GetLocaleDisplayName
- GetLocalHostIP
- GetMetaData
- GetMetricData
- GetPageContext
- GetPrinterInfo
- GetPrinterList
- GetProfileSections
- GetProfileString
- GetReadableImageFormats
- GetSafeHTML
- GetSAMLAuthRequest
- GetSAMLLogoutRequest
- GenerateSAMLSPMetadata
- GetSOAPRequest
- GetSOAPRequestHeader
- GetSOAPResponse
- GetSOAPResponseHeader
- GetSystemFreeMemory
- GetSystemTotalMemory
- GetTempDirectory
- GetTempFile
- GetTemplatePath
- GetTickCount
- GetTimeZoneInfo
- GetToken
- GetTotalSpace
- GetUserRoles
- GetVFSMetaData
- GetWriteableImageFormats
- Functions-h-im
- Hash
- HMac
- Hour
- HQLMethods
- HTMLCodeFormat
- HTMLEditFormat
- IIf
- ImageAddBorder
- ImageBlur
- ImageClearRect
- ImageCopy
- ImageCreateCaptcha
- ImageCrop
- ImageDrawArc
- ImageDrawBeveledRect
- ImageDrawCubicCurve
- ImageDrawLine
- ImageDrawLines
- ImageDrawOval
- ImageDrawPoint
- ImageDrawQuadraticCurve
- ImageDrawRect
- ImageDrawRoundRect
- ImageDrawText
- ImageFlip
- ImageGetBlob
- ImageGetBufferedImage
- ImageGetEXIFMetadata
- ImageGetEXIFTag
- ImageGetHeight
- ImageGetIPTCMetadata
- ImageGetIPTCTag
- ImageGetMetadata
- ImageGetWidth
- ImageGrayscale
- ImageInfo
- ImageMakeColorTransparent
- ImageMakeTranslucent
- ImageNegative
- ImageNew
- ImageOverlay
- ImagePaste
- ImageRead
- ImageReadBase64
- ImageResize
- ImageRotate
- ImageRotateDrawingAxis
- ImageScaleToFit
- ImageSetAntialiasing
- ImageSetBackgroundColor
- ImageSetDrawingColor
- ImageSetDrawingStroke
- ImageSetDrawingTransparency
- ImageSharpen
- ImageShear
- ImageShearDrawingAxis
- ImageTranslate
- ImageTranslateDrawingAxis
- ImageWrite
- ImageWriteBase64
- ImageXORDrawingMode
- Functions-in-k
- IncrementValue
- InputBaseN
- Insert
- Int
- InvalidateOauthAccesstoken
- Invoke
- InitSAMLAuthRequest
- InitSAMLLogoutRequest
- InvokeCFClientFunction
- IsArray
- IsAuthenticated
- IsAuthorized
- IsBinary
- IsBoolean
- IsClosure
- IsCustomFunction
- IsDate
- IsDateObject
- IsDDX
- IsDebugMode
- IsDefined
- IsImage
- IsImageFile
- IsInstanceOf
- IsIPv6
- IsJSON
- IsK2ServerABroker
- IsK2ServerDocCountExceeded
- IsK2ServerOnline
- IsLeapYear
- IsLocalHost
- IsNull
- IsNumeric
- IsNumericDate
- IsObject
- isOnline
- IsPDFArchive
- IsPDFFile
- IsPDFObject
- IsProtected
- IsQuery
- isSamlLogoutResponse
- isSafeHTML
- IsSimpleValue
- IsSOAPRequest
- IsSpreadsheetFile
- IsSpreadsheetObject
- IsStruct
- IsUserInAnyRole
- IsUserInRole
- IsUserLoggedIn
- IsValid
- IsValidOauthAccesstoken
- IsWDDX
- IsXML
- IsXmlAttribute
- IsXmlDoc
- IsXmlElem
- IsXmlNode
- IsXmlRoot
- JavaCast
- JSStringFormat
- Functions-l
- LCase
- Left
- Len
- ListAppend
- ListChangeDelims
- ListContains
- ListContainsNoCase
- ListDeleteAt
- ListEach
- ListFilter
- ListFind
- ListFindNoCase
- ListFirst
- ListGetAt
- ListInsertAt
- ListLast
- ListLen
- ListMap
- ListPrepend
- ListQualify
- ListReduce
- ListRemoveDuplicates
- ListRest
- ListSetAt
- ListSort
- ListToArray
- ListValueCount
- ListValueCountNoCase
- LJustify
- Location
- Log
- Log10
- LSCurrencyFormat
- LSDateFormat
- LSDateTimeFormat
- LSEuroCurrencyFormat
- LSIsCurrency
- LSIsDate
- LSIsNumeric
- LSNumberFormat
- LSParseCurrency
- LSParseDateTime
- LSParseEuroCurrency
- LSParseNumber
- LSTimeFormat
- LTrim
- Functions-m-r
- Max
- Mid
- Min
- Minute
- Month
- MonthAsString
- Now
- NumberFormat
- ObjectEquals
- ObjectLoad
- ObjectSave
- OnWSAuthenticate
- ORMClearSession
- ORMCloseAllSessions
- ORMCloseSession
- ORMEvictCollection
- ORMEvictEntity
- ORMEvictQueries
- ORMExecuteQuery
- ORMFlush
- ORMFlushall
- ORMGetSession
- ORMGetSessionFactory
- ORMIndex
- ORMIndexPurge
- ORMReload
- ORMSearch
- ORMSearchOffline
- ParagraphFormat
- ParameterExists
- ParseDateTime
- Pi
- PrecisionEvaluate
- ProcessSAMLResponse
- ProcessSAMLLogoutRequest
- Quarter
- PreserveSingleQuotes
- QueryAddColumn
- QueryAddRow
- QueryConvertForGrid
- QueryExecute
- QueryFilter
- QueryGetResult
- QueryGetRow
- QueryKeyExists
- QueryMap
- QueryNew
- QueryReduce
- QuerySetCell
- QuotedValueList
- QueryEach
- Rand
- Randomize
- RandRange
- ReEscape
- REFind
- REFindNoCase
- ReleaseComObject
- REMatch
- REMatchNoCase
- RemoveCachedQuery
- RemoveChars
- RepeatString
- Replace
- ReplaceList
- ReplaceNoCase
- REReplace
- REReplaceNoCase
- RestDeleteApplication
- RestSetResponse
- RestInitApplication
- Reverse
- Right
- RJustify
- Round
- RTrim
- Functions-s
- Second
- SendGatewayMessage
- SendSAMLLogoutResponse
- Serialize
- SerializeJSON
- SerializeXML
- SessionInvalidate
- SessionRotate
- SessionGetMetaData
- SessionInvalidate
- SessionRotate
- SetDay
- SetEncoding
- SetHour
- SetLocale
- SetMonth
- SetProfileString
- SetVariable
- SetYear
- Sgn
- Sin
- Sleep
- SpanExcluding
- SpanIncluding
- SpreadsheetAddAutoFilter
- SpreadsheetAddColumn
- SpreadsheetAddFreezePane
- SpreadsheetAddImage
- SpreadsheetAddInfo
- SpreadsheetAddPageBreaks
- SpreadsheetAddRow
- SpreadsheetAddRows
- SpreadsheetAddSplitPane
- SpreadsheetCreateSheet
- SpreadsheetDeleteColumn
- SpreadsheetDeleteColumns
- SpreadsheetDeleteRow
- SpreadsheetDeleteRows
- SpreadsheetFormatCell
- SpreadsheetFormatColumn
- SpreadsheetFormatCellRange
- SpreadsheetFormatColumn
- SpreadsheetFormatColumns
- SpreadsheetFormatRow
- SpreadsheetFormatRows
- SpreadsheetGetCellComment
- SpreadsheetGetCellFormula
- SpreadsheetGetCellValue
- SpreadsheetGetColumnCount
- SpreadsheetInfo
- SpreadsheetMergeCells
- SpreadsheetNew
- SpreadsheetRead
- SpreadsheetReadBinary
- SpreadsheetRemoveSheet
- SpreadsheetSetActiveSheet
- SpreadsheetSetActiveSheetNumber
- SpreadsheetSetCellComment
- SpreadsheetSetCellFormula
- SpreadsheetSetCellValue
- SpreadsheetSetColumnWidth
- SpreadsheetSetFooter
- SpreadsheetSetHeader
- SpreadsheetSetRowHeight
- SpreadsheetShiftColumns
- SpreadsheetShiftRows
- SpreadsheetWrite
- Sqr
- StripCR
- StructAppend
- StructClear
- StructCopy
- StructCount
- StructDelete
- StructEach
- StructFilter
- StructFind
- StructFindKey
- StructFindValue
- StructGet
- StructGetMetadata
- StructInsert
- StructIsEmpty
- StructKeyArray
- StructKeyExists
- StructKeyList
- StructMap
- StructNew
- StructReduce
- StructSetMetadata
- StructSort
- StructToSorted
- StructUpdate
- StoreSetMetadata
- StoreGetACL
- StoreGetMetadata
- StoreAddACL
- StoreSetACL
- Functions-t-z
- Tan
- ThreadJoin
- ThreadTerminate
- Throw
- TimeFormat
- ToBase64
- ToBinary
- ToScript
- ToString
- Trace
- Transactionandconcurrency
- TransactionCommit
- TransactionRollback
- TransactionSetSavePoint
- Trim
- UCase
- URLDecode
- URLEncodedFormat
- URLSessionFormat
- Val
- ValueList
- VerifyClient
- Week
- Wrap
- WriteDump
- WriteLog
- WriteOutput
- WSGetAllChannels
- WSGetSubscribers
- WSPublish
- WSSendMessage
- XmlChildPos
- XmlElemNew
- XmlFormat
- XmlGetNodeType
- XmlNew
- XmlParse
- XmlSearch
- XmlTransform
- XmlValidate
- Year
- YesNoFormat
- ColdFusion Tags
- ColdFusion tag summary
- ColdFusion tags by category
- Application framework tags
- Communications tags
- Database manipulation tags
- Data output tags
- Debugging tags
- Exception handling tags
- Extensibility tags
- File management tags
- Flow-control tags
- Forms tags
- Internet Protocol tags
- Page processing tags
- Security tags
- Variable manipulation tags
- Other tags
- Tags a-b
- Tags c
- Tags f
- cffeed
- cffile
- cffile action = "append"
- cffile action = "copy"
- cffile action = "delete"
- cffile action = "move"
- cffile action = "read"
- cffile action = "readBinary"
- cffile action = "rename"
- cffile action = "upload"
- cffile action = "uploadAll"
- cffile action = "write"
- cffileupload
- cffinally
- cfflush
- cfform
- cfformgroup
- cfformitem
- cfftp
- cfftp: Connection: file and directory operations
- cfftp: Opening and closing FTP server connections
- cfftp : Opening and closing secure FTP server connections
- cfftp action = "listDir"
- cffunction
- Tags g-h
- Tags i
- Tags j-l
- cfjava
- cflayout
- cflayoutarea
- cfldap
- cflocation
- cflock
- cflog
- cflogin
- cfloginuser
- cflogout
- cfloop
- cfloop : conditional loop
- cfloop : index loop
- cfloop : looping over a COM collection or structure
- cfloop : looping over a date or time range
- cfloop : looping over a list, a file, or an array
- cfloop : looping over a query
- Tags m-o
- cfmail
- cfmailparam
- cfmailpart
- cfmap
- cfmapitem
- cfmediaplayer
- cfmenu
- cfmenuitem
- cfmessagebox
- cfmodule
- cfNTauthenticate
- cfoauth
- cfobject
- cfobject: .NET object
- cfobject: COM object
- cfobject: component object
- cfobject: CORBA object
- cfobject: Java or EJB object
- cfobject: web service object
- cfobjectcache
- cfoutput
- Tags p-q
- Tags r-s
- Tags t
- Tags u-z
- CFML Reference
- Reserved words and variables
- Ajax JavaScript functions
- Ajax JavaScript functions
- Function summary Ajax
- ColdFusion.Ajax.submitForm
- ColdFusion.Autosuggest.getAutosuggestObject
- ColdFusion.Layout.enableSourceBind
- ColdFusion.MessageBox.getMessageBoxObject
- ColdFusion.ProgressBar.getProgressBarObject
- ColdFusion.MessageBox.isMessageBoxDefined
- JavaScriptFunctionsinColdFusion9Update1
- ColdFusion ActionScript functions
- ColdFusion mobile functions
- Application.cfc reference
- Script functions implemented as CFCs
- ColdFusion Flash Form style reference
- Styles valid for all controls
- Styles for cfform
- Styles for cfformgroup with horizontal or vertical type attributes
- Styles for box-style cfformgroup elements
- Styles for cfformgroup with accordion type attribute
- Styles for cfformgroup with tabnavigator type attribute
- Styles for cfformitem with hrule or vrule type attributes
- Styles for cfinput with radio, checkbox, button, image, or submit type attributes
- Styles for cftextarea tag and cfinput with text, password, or hidden type attributes
- Styles for cfselect with size attribute value of 1
- Styles for cfselect with size attribute value greater than 1
- Styles for cfcalendar tag and cfinput with dateField type attribute
- Styles for the cfgrid tag
- Styles for the cftree tag
- ColdFusion Flash Form Style Reference
- ColdFusion event gateway reference
- ColdFusion Event Gateway reference
- addEvent
- CFEvent
- CFEventclass
- Constructor
- Gateway development interfaces and classes
- getStatus
- setCFCPath
- setCFCMethod
- getOriginatorID
- getLogger
- getBuddyList
- getBuddyInfo
- IM gateway message sending commands
- IM Gateway GatewayHelper class methods
- onIncomingMessage
- onIMServerMessage
- onBuddyStatus
- onAddBuddyResponse
- onAddBuddyRequest
- IM Gateway CFC incoming message methods
- IM gateway methods and commands
- CFML CFEvent structure
- warn
- info
- setOriginatorID
- data command
- submit Multi command
- submit command
- setGatewayType
- setGatewayID
- setData
- setCFCListeners
- outgoingMessage
- getStatusTimeStamp
- numberOfMessagesReceived
- numberOfMessagesSent
- removeBuddy
- removeDeny
- removePermit
- setNickName
- setPermitMode
- setStatus
- SMS Gateway CFEvent structure and commands
- SMS Gateway incoming message CFEvent structure
- getStatusAsString
- getProtocolName
- getPermitMode
- getPermitList
- getNickName
- getName
- getDenyList
- getCustomAwayMessage
- getQueueSize
- getMaxQueueSize
- getHelper
- getGatewayType
- getGatewayServices
- getGatewayID_1
- getGatewayID
- getData
- getCFCTimeout
- setCFCTimeout
- getCFCPath
- getCFCMethod
- GatewayServices class
- Gateway interface
- GatewayHelper interface
- addPermit
- addDeny
- addBuddy
- error
- debug
- Logger class
- stop
- start
- CFML event gateway SendGatewayMessage data parameter
- restart
- fatal
- SMS gateway message sending commands
- ColdFusion C++ CFX Reference
- ColdFusion Java CFX reference
- WDDX JavaScript Objects
- Cloud services
- ColdFusion and GCP Storage
- ColdFusion and GCP Firestore
- ColdFusion and GCP PubSub
- ColdFusion and Amazon S3
- ColdFusion and DynamoDB
- ColdFusion and Amazon SQS
- ColdFusion and Amazon SNS
- ColdFusion and MongoDB
- ColdFusion and Azure Blob
- ColdFusion and Azure Service Bus
- Multi-cloud storage services
- Multi-cloud RDS databases
- ColdFusion and Azure Cosmos DB
Description
Writes a message to a log file.
Category
Syntax
<cflog text = "text" type = "information|warning|error|fatal" application = "yes|no" file = "filename" log = "log type">
You can specify this tag's attributes in an attributeCollection attribute whose value is a structure. Specify the structure name in the attributeCollection attribute and use the tag's attribute names as structure keys.
See also
History
ColdFusion MX: Deprecated the thread, date, and time attributes. They might not work, and might cause an error, in later releases. (In earlier releases, these attributes determined whether the respective data items were output to the log. In ColdFusion MX, this data is always output.)
Attributes
Attribute |
Req/Opt |
Default |
Description |
---|---|---|---|
text |
Required |
|
Message text to log. |
application |
Optional |
yes |
|
file |
Optional |
|
Message file. Specify only the main part of the filename. For example, to log to the Testing.log file, specify "Testing". The file must be located in the default log directory. You cannot specify a directory path. If the file does not exist, it is created automatically, with the extension .log. |
log |
Optional |
|
If you omit the file attribute, writes messages to standard log file. Ignored, if you specify file attribute.
|
type |
Optional |
Information |
Type (severity) of the message:
|
Usage
This tag logs custom messages to standard or custom log files. You can specify a file for the log message or send messages to the default application or scheduler log. The log message can include ColdFusion expressions. Log files must have the extension .log and must be located in the ColdFusion log directory. Log entries are written as comma-delimited lists with these fields:
- type
- thread
- date
- time
- application
textValues are enclosed in double quotation marks. If you specify no for the application attribute, the corresponding entry in the list is empty.
You can disable cflogtag execution. For more information, see the ColdFusion Administrator Basic Security page. The following example logs the name of a user that logs on an application. The message is logged to the file myAppLog.log in the ColdFusion log directory. It includes the date, time, and thread ID, but not the application name.
<cflog file="myAppLog" application="no" text="User #Form.username# logged on.">
For example, if a user enters "Sang Thornfield" in a form's username field, this entry is added to the myApplog.log file entry:"Information","153","02/28/01","14:53:40",,"User Sang Thornfield logged on."