ViewHelper Reference
8.7
typo3/backend
avatar
typo3/belog
be
be.pagePath
form
form.translateLabelSelect
errorIcon
formatDetails
historyEntry
isExtensionLoaded
username
workspaceTitle
typo3/beuser
display
display.pages
display.sysFileMounts
display.sysLanguage
arrayElement
editRecord
issueCommand
permissions
removeUser
spriteIconForRecord
switchUser
typo3/core
iconForRecord
icon
typo3/cshmanual
format
typo3/css_styled_content
link
link.clickEnlarge
typo3/documentation
formats
typo3/extensionmanager
be
be.trigger
form
form.typoScriptConstants
format
format.implode
format.jsonEncode
link
link.action
configureExtension
downloadExtensionData
downloadExtension
image
installationStateCssClass
processAvailableActions
reloadSqlData
removeExtension
showExtensionVersions
timeSinceLastUpdate
toggleExtensionInstallationState
typo3Dependency
updateScript
typo3/filelist
link
link.clickMenuOnIcon
uri
uri.deleteFile
uri.editFileContent
uri.editSysFileMetadataRecord
uri.renameFile
uri.replaceFile
typo3/fluid
be
buttons
be.buttons.csh
be.buttons.shortcut
menus
be.menus.actionMenuItemGroup
be.menus.actionMenuItem
be.menus.actionMenu
security
be.security.ifAuthenticated
be.security.ifHasRole
widget
be.widget.paginate
be.container
be.infobox
be.pageInfo
be.pagePath
be.pageRenderer
be.tableList
debug
debug.render
form
select
form.select.optgroup
form.select.option
form.button
form.checkbox
form.hidden
form.password
form.radio
form.select
form.submit
form.textarea
form.textfield
form.upload
form.validationResults
format
format.bytes
format.case
format.crop
format.currency
format.date
format.html
format.htmlentitiesDecode
format.htmlentities
format.json
format.nl2br
format.number
format.padding
format.stripTags
format.urlencode
link
link.action
link.email
link.external
link.page
link.typolink
security
security.ifAuthenticated
security.ifHasRole
uri
uri.action
uri.email
uri.external
uri.image
uri.page
uri.resource
uri.typolink
widget
widget.autocomplete
widget.link
widget.paginate
widget.uri
base
cObject
case
debug
flashMessages
form
image
media
renderChildren
switch
translate
typo3/fluid_styled_content
link
link.clickEnlarge
typo3/form
be
be.renderContentElementPreview
form
form.checkbox
form.datePicker
form.timePicker
form.uploadedResource
form
gridColumnClassAutoConfiguration
plainTextMail
renderAllFormValues
renderRenderable
render
translateElementError
translateElementProperty
typo3/indexed_search
format
format.dateTime
format.flagValue
format.groupList
pageBrowsingResults
pageBrowsing
typo3/install
file
file.exists
file.imageDimension
file.relativePath
file.size
format
format.crop
format.imageMagickCommands
format.phpErrorCode
object
object.arrayValueByKey
uri
uri.action
constant
phpInfo
typo3/reports
icon
typo3/scheduler
moduleLink
typo3/sys_note
deleteLink
editLink
typo3fluid/fluid
cache
cache.disable
cache.static
cache.warmup
format
format.cdata
format.htmlspecialchars
format.printf
format.raw
alias
case
comment
count
cycle
debug
defaultCase
else
for
groupedFor
if
layout
or
render
section
spaceless
switch
then
variable
ViewHelper Reference
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typo3/belog
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isExtensionLoaded
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isExtensionLoaded
¶
Returns true, if a specific extension is loaded
Arguments
¶
extensionKey
¶
DataType
string
Required
true
Description
The extension’s key