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Chapter 2: ColdFusion Tags
Example
<!--- This example shows how to use cfset. --->
<cfquery name = "GetMessages" dataSource = "cfdocexamples">
SELECT *
FROM Messages
</cfquery>
<h3>cfset Example</h3>
<p>cfset sets and reassigns values to local or global variables within a page.
<cfset NumRecords = GetMessages.recordCount>
<p>For example, the variable NumRecords has been declared on this
page to hold the number of records returned from query
(<cfoutput>#NumRecords#</cfoutput>).
<p>In addition, cfset can be used to pass variables from other pages,
such as this example, which takes the url parameter Test from this link:
(<a href = "cfset.cfm?test = <cfoutput>
#URLEncodedFormat("hey, you, get off of my cloud")#</cfoutput>
">click here</A>) to display a message:
<p>
<cfif IsDefined ("url.test") is "True">
<cfoutput><b><I>#url.test#</i></b></cfoutput>
<cfelse>
<h3>The variable url.test has not been passed from another page.</h3>
</cfif>
<p>cfset can also be used to collect environmental variables, such as the
time, the IP address of the user, or another function or expression.
<cfset the_date = #DateFormat(Now())# & " " & #TimeFormat(Now())#>
<cfset user_ip = CGI.REMOTE_ADDR>
<cfset complex_expr = (23 MOD 12) * 3>
<cfset str_example = Reverse(Left(GetMessages.body, 35))>
<cfoutput>
<ul>
<li>The date: #the_date#
<li>User IP Address: #user_ip#
<li>Complex Expression ((23 MOD 12) * 3): #complex_expr#
<li>String Manipulation (the first 35 characters of
the body of the first message in our query)
<br><b>Reversed</b>: #str_example#
<br><b>Normal</b>: #Reverse(str_example)#
</ul>
</cfoutput>
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...