
IsBinary
663
IsBinary
Description
Determines whether a value is stored as binary data.
Returns
True, if the value is binary; False, otherwise.
Category
Decision functions
Function syntax
IsBinary
(
value
)
See also
ToBinary
,
ToBase64
,
IsNumeric
,
YesNoFormat
Parameters
Example
<!--- Create a string of all ASCII characters (32-255)
and concatenate them together. --->
<cfset charData ="">
<cfloop index="data" from="32" to="255">
<cfset ch=chr(data)>
<cfset charData=charData & ch>
</cfloop>
<b>The following string is the concatenation of all characters (32 to 255) from
the ASCII table.</b><br><br>
<cfoutput>#htmleditformat(charData)#</cfoutput>
<br><br>
<!--- Create a Base 64 representation of this string. --->
<cfset data64=toBase64(charData)>
<!--- Convert string to binary. --->
<cfset binaryData=toBinary(data64)>
<!--- Check to see if it really is a binary value. --->
<cfif IsBinary(binaryData)>
The binaryData variable is binary!<br>
</cfif>
<!--- Convert binary data back to Base 64. --->
<cfset another64=toBase64(binaryData)>
<cfif Not IsBinary(another64)>
The another64 variable is NOT binary!<br>
</cfif>
<!--- Compare another64 with data64 to ensure that they are equal. --->
<cfif another64 eq data64>
Base 64 representation of binary data is identical to the Base 64
representation of string data.
Parameter
Description
value
Number or string
Содержание COLFUSION MX 7-CFML
Страница 1: ...COLDFUSION MX7 CFML Reference...
Страница 20: ...20 Chapter 1 Reserved Words and Variables...
Страница 50: ...50 Chapter 2 ColdFusion Tags cfelse br Searching cfif cfloop cfif...
Страница 101: ...cfdefaultcase 101 cfdefaultcase cfswitch cfoutput Your grade is grade cfoutput...
Страница 115: ...cfdocumentsection 115 cfdocumentsection cfoutput cfdocument...
Страница 311: ...cfNTauthenticate 311 Please Try again H2 cfif cfoutput cfinclude template loginform cfm cfabort cfif cfif cflogin...
Страница 411: ...cftable 411 cftable body html...
Страница 515: ...Chr 515 maxlength 5 p input type Submit name input type RESET cfform...
Страница 605: ...GetEncoding 605 WriteOutput The encoding is theEncoding cfscript cfif...
Страница 629: ...GetProfileString 629 tr td input type Submit name Submit value Submit td td td tr table form...
Страница 655: ...IIf 655 cfoutput IIf Hour Now GTE 12 DE It is afternoon or evening DE It is morning cfoutput b...
Страница 664: ...664 Chapter 3 ColdFusion Functions cfelse h3 Conversion error h3 cfif...
Страница 687: ...IsStruct 687 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 693: ...IsWDDX 693 struct data wddxPacket hr xmp cfoutput packet xmp IsWDDX returns IsWDDX packet br cfoutput...
Страница 751: ...LSDateFormat 751 hr noshade cfoutput cfloop...
Страница 861: ...StructFind 861 cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 869: ...StructIsEmpty 869 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 903: ...Val 903 value Is the beginning numeric name form...
Страница 932: ...932 Chapter 3 ColdFusion Functions...
Страница 944: ...944 Chapter 4 ColdFusion MX Flash Form Style Reference...
Страница 962: ...962 Chapter 5 Application CFC Reference...
Страница 1008: ...1008 Chapter 6 ColdFusion MX Event Gateway Reference cfset retValue Reason reason cfreturn retValue cffunction...
Страница 1054: ...1054 Chapter 6 ColdFusion MX Event Gateway Reference...