How can I pass an image parameter in HTML? Is it possible???

**Darin McGrew** · Jul 23 '05, 11:50 PM

Re: How can I pass an image parameter in HTML? Is it possible???

John <GodLovesEveryo ne.org@gmail.co m> wrote:[color=blue]
> page at www.GodLovesEveryone.org/godloves.php
>
> When I try it in Mozilla Thunderbird, I'm getting asked if I want to
> save the file to disk.[/color]

That's because the server is sending the page as

Content-Type: application/octet-stream

rather than as

Content-Type: text/html
--
Darin McGrew, darin@TheRallye Club.org, http://www.TheRallyeClub.org/
A gimmick car rallye is not a race, but a fun puzzle testing your
ability to follow instructions. Upcoming gimmick car rallye in
Silicon Valley: Common Sense (Saturday, April 2)

**kaeli** · Jul 23 '05, 11:51 PM

Re: How can I pass an image parameter in HTML? Is it possible???

In article <1111002461.769 867.153420@l41g 2000cwc.googleg roups.com>,
GodLovesEveryon e.org@gmail.com enlightened us with...[color=blue]
>
> I've left a message for him to call back. Meanwhile, I've put a test
> page at www.GodLovesEveryone.org/godloves.php
>
> When I try it in Mozilla Thunderbird, I'm getting asked if I want to
> save the file to disk.[/color]

That one got answered. The server isn't sending the right content type. It
needs configured.

Whitespace is your friend. :)
And just use GET, not POST. No need for POSTing.
That way people can just send it in the URL, links, etc. Forms can use GET to
send stuff, too. POST is a way forms send data, mostly, and it should really
be used only when you're going to be doing things like updating a database.
GET is fine (and GET is what it is when it's in the URL).

And don't use the word "file" as a variable name. I shouldn't have -- I
wasn't thinking.
It's a reserved word (actually, it's a function) in PHP and you can
inadvertently do things you don't mean to. Best to not call variable names
the same as reserved words, even if a language allows it.

This is better (though I might even change "$name" to "$firstname " or
something).
Note the shortcut for echoing a variable value or expression is <?= varname
?>.

Watch for word wrap.

<html><head>
<?php
$name = $HTTP_GET_VARS["name"];
if ($name == "")
{
$name = "John"; // change to some default
}
$filename = substr($name,0, 1) . "/" . $name . ".gif";
if (strnatcasecmp( $name,"con")) $filename = "c/con-.gif"; /* not sure why you
have this here, what it does. */
?>
<title>God Loves <?= $name ?>, a solvable puzzle personalized with
<?= name ?>'s name.</title>
</head>
<body>
[color=blue]
>
> <h1>God Loves <?php echo $name; ?></h1>[/color]

<h1>God Loves <?= $name ?></h1>
(note, when using shortcut echo, NO SEMI-COLON.)
[color=blue]
>
> and when I wanted to echo the file name, either
>
> <img src="<?php echo $file; ?>.gif">[/color]

You already had the .gif in there.
<img src="<?= $filename?>">

Note that the path was made as relative (j/john), so you have to have a
subdir under where this file is running from matching that.
i.e.

https://www.GodLovesEveryone.org/godloves.php

https://www.GodLovesEveryone.org/j/john.gif

[color=blue]
>
> One question that occurred to me when I was playing with the header is
> if the system remembers the variables between links to the page?[/color]

Only if you save them as session variables (requires cookies on client) or
pass them via the URL or other means. IOW, you have to set it up to do that.
Otherwise, no, they aren't saved.
[color=blue]
>
> P.S. Just in case Brent doesn't have PHP installed, what should I tell
> him about where to download it. You said it was free.[/color]

PHP

http://www.php.net

PHP is a popular general-purpose scripting language that powers everything from your blog to the most popular websites in the world.

One tip - PHP generates dynamic HTML. Tracing problems is often hard --
unless you remember to view the HTML source with the browser's View->Source.
Sometimes you find easy mistakes (like misspelled directories) there. First
place to look when it doesn't seem to do what you thought it would. B/c the
browser doesn't normally see PHP. All it sees (all it is supposed to see) is
the html generated by your script.

--
--
~kaeli~
A little rudeness and disrespect can elevate a meaningless
interaction to a battle of wills and add drama to an
otherwise dull day.

http://www.ipwebdesign.net/wildAtHeart

http://www.ipwebdesign.net/kaelisSpace

**John** · Jul 23 '05, 11:51 PM

Re: How can I pass an image parameter in HTML? Is it possible???

I found out why PHP doesn't work.

Brent says he doesn't host PHP because it's mainly a UNIX product, and
each time he has attempted to run PHP, it has crashed his Windows
server.

He suggested that I try to use either ASP or CFM, so any advice in
those areas would be appreciated. Meanwhile, I'll see what I can find
on a web search.

Regarding why I have "con-.gif", it's because, for some strange reason,
Windows won't let me have a file with "Con" as the filename, probably
because "CON" is a reserved word, standing for CONSOLE when doing a
display to the console, as in
COPY filename CON: /b

John

**John** · Jul 23 '05, 11:51 PM

Re: How can I pass an image parameter in HTML? Is it possible???

I've got a page mocked up in ASP that lets the user put in his name

http://www.godloveseveryone.org/godloves2.asp

But I haven't figured out how to do it with URL links, can you glance
at it and give me some advice. I did figure out how to capitalize the
first letter of the name, and took care of that funny "Con" error.

Here is what I ended up with, since I know you can't see it on the web
page.

Here's the first part of the file:

<%@ LANGUAGE="VBSCR IPT" %>

<% Dim First
Dim FilNam
First = Request.form("f irst")
if First="" then First="John"
First = ucase(left(Firs t,1))+mid(First ,2)
FilNam = left(First,1)+"/"+First+".g if"
if ucase(First)="C ON" then FilNam="C/Con-.gif"
%>
<HTML><HEAD>
<TITLE>God Loves <%=First%>, a solvable puzzle personalized with
<%=First%>'s name</title>
</head>

and the first H1 and image link

<h1>God Loves <%=First%></h1>
<img src="<%=FilNam% >">

and the large image link

<img src="<%=FilNam% >" width="100%">

I'm guessing that you might be able to help me with passing parameters
with the URL??? I also couldn't figure out how to test to see if the
file existed. DIR$ is the function I'm used to, I couldn't find either
it or anything starting with file like in your File_Exists example.

I do appreciate all your help, even all the "wasted time" on PHP helped
me get this one done much faster.

By the way, I didn't think your name was there, but I tested the page
with KAELI and guess what popped up? Hope that's a small thank you.

John

**John** · Jul 23 '05, 11:51 PM

Re: How can I pass an image parameter in HTML? Is it possible???

Hi, Kaeli,

In addition to the page that is "mostly working", I'm trying to work on
a slightly different version to strip out spaces and other
non-dash-non-letter characters from the filename, and possibly display
two mazes if they happen to put in a name with a space, first and all.

BUT I'm getting page not found, and getting no errors at all when I try
to load that particular page. Here is the ASP code if you can see
what's causing the error. I've tried breaking down the statements,
changing OR to +, and a few other strange things, so I may have made it
worse.

Here it is:

<%@ LANGUAGE="VBSCR IPT" %>

<% Dim First
Dim FilNam
Dim FilNam2
Dim i
Dim j
Dim FilNam3
Dim FilNam4
First = trim(Request.fo rm("first"))
if First<"A" then First="John"
if First>"zza" then First="John"
First = ucase(left(Firs t,1))+mid(First ,2)
FilNam = left(First,1)+"/"+First+".g if"
if ucase(First)="C ON" then FilNam="C/Con-.gif"
FilNam2 = left(First,1)+"/"+left$(First,i nstr(First+" "," ")-1)+".gif"
for i=len(FilNam)-4 to 3 step -1
j=asc(ucase(mid (FilNam,i,1)))
if j<>45 then
if (j<65)+(j>90) then FilNam=left(Fil Nam,i-1)+mid(FilNam,i +1)
end if
next
if FilNam2<>FilNam then
FilNam3="<img src="+chr$(34)+ FilNam2+chr$(34 )+"><P>"
FilNam4=left$(F ilNam3,len(FilN am3)-4)+" width=100%><P>"
end if
%>
<HTML><HEAD>
<TITLE>God Loves <%=First%>, a solvable puzzle personalized with
<%=First%>'s name</title>
</head>
<BODY><CENTER >
... snip ...
<Table bgcolor=#ffff77 ">
<TR><TD align=center>
<form action="godlove s3.asp" name="form" method="post">
<BIG>Make a Maze</big><BR>
containing<BR>
<I><B>Your</b></i> name:<BR><input type="text" size=15 name="first"
/>
<p><input type="submit" value="Make My Maze">
</form>
<B><font size=3 color=#FF0000>& nbsp;Now</font> <font size=2> more
than</font> <font color=#ff0000 size=3>38,000&n bsp;</font><BR>differ ent
names</b></font>
</td></tr></table>
... snip ...
<h1>God Loves <%=First%></h1>
<img src="<%=FilNam% >"><P>
<%=FilNam3%>
... snip ...
<h1>God Loves <%=First%></h1>
... snip ...
<%=FilNam4%>
<img src="<%=FilNam% >" width="100%">

the occurrence of <%=FilNam3%> and 4%> should, most of the time, just
result in a null string, but when the user puts in "JOHN WILLIAM" for
example, it should attempt to load both "JOHN" and "JOHNWILLIA M" .

I'm flummoxed, and I have to get up early tomorrow for an important
meeting (keep me in your prayers, it's an important meeting), so I'm
quitting now.

Meanwhile, I'm very grateful for the help. I have already linked the
new page to my main web page, www.GodLovesEveryone.org, so the page
that is working that you helped me with is now available
(www.GodLovesEveryone.org/godloves2.asp).

The page that isn't working is www.godloveseveryone.org/godloves3.asp

Thanks again.

John

**kaeli** · Jul 23 '05, 11:51 PM

Re: How can I pass an image parameter in HTML? Is it possible???

In article <1111030071.906 330.255520@z14g 2000cwz.googleg roups.com>,
GodLovesEveryon e.org@gmail.com enlightened us with...[color=blue]
> <%@ LANGUAGE="VBSCR IPT" %>
>
> <% Dim First
> Dim FilNam
> First = Request.form("f irst")[/color]

That's for form submissions (i.e.POST).
You want querystring for ASP URL params.
First = Request.QuerySt ring("first")
[color=blue]
>
> I'm guessing that you might be able to help me with passing parameters
> with the URL???[/color]

Just link like

http://www.godloveseveryone.org/godloves2.asp?first=kaeli

[color=blue]
> I also couldn't figure out how to test to see if the
> file existed. DIR$ is the function I'm used to, I couldn't find either
> it or anything starting with file like in your File_Exists example.
>[/color]

No, for VBScript you want FileSystemObjec t, I believe.
Lemme go look...
Yup.
Set filesys = CreateObject("S cripting.FileSy stemObject")
If filesys.FileExi sts(path) Then
End If

See:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbenlr98/html/vaobjfilesystemobject.asp

Note: vbscript syntax and functions are pretty much the same as full VB. Some
minor differences, but nothing that should screw up something this small.
[color=blue]
> I do appreciate all your help, even all the "wasted time" on PHP helped
> me get this one done much faster.
>[/color]

Hey, no problem.
[color=blue]
> By the way, I didn't think your name was there, but I tested the page
> with KAELI and guess what popped up? Hope that's a small thank you.
>[/color]

Thanks. :)

--
--
~kaeli~

http://www.ipwebdesign.net/wildAtHeart

http://www.ipwebdesign.net/kaelisSpace

**kaeli** · Jul 23 '05, 11:51 PM

Re: How can I pass an image parameter in HTML? Is it possible???

In article <1111039388.563 297.166010@l41g 2000cwc.googleg roups.com>,
GodLovesEveryon e.org@gmail.com enlightened us with...[color=blue]
> Hi, Kaeli,
>
> In addition to the page that is "mostly working", I'm trying to work on
> a slightly different version to strip out spaces and other
> non-dash-non-letter characters from the filename, and possibly display
> two mazes if they happen to put in a name with a space, first and all.[/color]

A space is not a valid character in the URL. It would be encoded as %20.
[color=blue]
>
> BUT I'm getting page not found, and getting no errors at all when I try
> to load that particular page. Here is the ASP code if you can see
> what's causing the error. I've tried breaking down the statements,
> changing OR to +,[/color]

VBScript/VB does not support/overload the plus operator (+) for string
concatenation.
It's an ampersand. (&)

You might want to peruse the documentation. It has the operators in there.

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/vbscripttoc.asp

[color=blue]
> First = trim(Request.fo rm("first"))
> if First<"A" then First="John"[/color]

I'm not sure if this is really what you want.
Many languages will convert this to number comparisons, but VB isn't the
brightest thing I've ever used. You may want to see what other string
functions might do a better job.
It looks like you're trying to make sure the name is an alphabetic string.

Google is my friend. :)

<%
Private Function IsAlpha(byVal string)
dim regExp, match, i, spec
For i = 1 to Len( string )
spec = Mid(string, i, 1)
Set regExp = New RegExp
regExp.Global = True
regExp.IgnoreCa se = True
regExp.Pattern = "[A-Z]|[a-z]|\s|[_]"
set match = regExp.Execute( spec)
If match.count = 0 then
IsAlpha = False
Exit Function
End If
Set regExp = Nothing
Next
IsAlpha = True
End Function

If IsNull(First) Or IsEmpty(First) Or Not IsAlpha(First)
First = "John"
End If
%>
[color=blue]
> FilNam2 = left(First,1)+"/"+left$(First,i nstr(First+" "," ")-1)+".gif"[/color]

Ampersands. Not pluses. And take out the dollar sign.

FilNam2 = left(First,1) & "/"+left(First,in str(First+" "," ")-1) & ".gif"
[color=blue]
> for i=len(FilNam)-4 to 3 step -1
> j=asc(ucase(mid (FilNam,i,1)))
> if j<>45 then
> if (j<65)+(j>90) then FilNam=left(Fil Nam,i-1)+mid(FilNam,i +1)
> end if[/color]

What is that supposed to be doing?
[color=blue]
> next
> if FilNam2<>FilNam then
> FilNam3="<img src="+chr$(34)+ FilNam2+chr$(34 )+"><P>"[/color]

And again, use ampersands.
You've got pluses throughout. Change them all to ampersands.
[color=blue]
> <Table bgcolor=#ffff77 ">[/color]

Unbalanced quote. Will mess things up.
<Table bgcolor="#ffff7 7">

[color=blue]
> <TR><TD align=center>
> <form action="godlove s3.asp" name="form" method="post">[/color]

You can just use GET for the method (passes via the URL). Save yourself the
hassle of having to check incoming params of both get and post.
[color=blue]
>
> the occurrence of <%=FilNam3%> and 4%> should, most of the time, just
> result in a null string, but when the user puts in "JOHN WILLIAM" for
> example, it should attempt to load both "JOHN" and "JOHNWILLIA M" .[/color]

There will be no space in the actual URL. It will be displayed as %20. I
believe vbscript changes it back to a space for you when you grab the param,
but I am not certain. You'll need to test this.

Good luck with the meeting.

--
--
~kaeli~
He's your God, they're your rules - you burn in Hell.

http://www.ipwebdesign.net/wildAtHeart

http://www.ipwebdesign.net/kaelisSpace

**John** · Jul 23 '05, 11:51 PM

Re: How can I pass an image parameter in HTML? Is it possible???

> VBScript/VB does not support/overload the plus operator (+) for
string[color=blue]
> concatenation. It's an ampersand. (&)[/color]

Actually, it appears to support it, because I'm using + on the working
"godloves2. asp" page.

<%@ LANGUAGE="VBSCR IPT" %>

<% Dim First, FilNam, FilNam2, i, j
First = trim(Request.fo rm("first"))
if First<"A" or First>"zza" then First="John"
First = ucase(left(Firs t,1))+mid(First ,2)
FilNam = left(First,1)+"/"+First+".g if"
FilNam2 = left$(First,ins tr(First+" "," ")-1)
for i=Len(FilNam)-4 to 3 step -1
j=asc(ucase(mid (FilNam,i,1)))
if j<>45 then if j<65 or j>90 then
FilNam=left(Fil Nam,i-1)+mid(FilNam,i +1)
next
if ucase(First)="C ON" then FilNam="C/Con-.gif"
%>

the above comes from www.GodLovesEveryone.org/godloves2.asp

I'm briefly perusing the rest of your comments before leaving for my
meeting. I won't be testing page "3" until later this afternoon or
evening.

John

**kaeli** · Jul 23 '05, 11:51 PM

Re: How can I pass an image parameter in HTML? Is it possible???

In article <1111073799.613 387.94180@l41g2 000cwc.googlegr oups.com>,
GodLovesEveryon e.org@gmail.com enlightened us with...[color=blue][color=green]
> > VBScript/VB does not support/overload the plus operator (+) for[/color]
> string[color=green]
> > concatenation. It's an ampersand. (&)[/color]
>
> Actually, it appears to support it, because I'm using + on the working
> "godloves2. asp" page.[/color]

It won't give an error.
Use the ampersand. Trust me. :)

It was old syntax before they even added support for constants. That was
1996.
"Arithmetic Operators
The arithmetic operators are used with numeric variables and literals and
expressions. (Since VBS at the moment has no constants, they are not an issue
here.) The plus sign (+) can also be used as a string concatenation operator,
but this usage is obsolete and should be used sparingly."

Remember, just because you CAN do something doesn't mean you SHOULD. *heh*
Especially when you're using a non-strongly-typed language. Things tend to
get converted to another data type when you're not looking.

Normal VB is typed, but I'm pretty sure VBS isn't. I think everything is a
Variant in VBS. That can lead to issues.
Are you using ASP classic or ASP.NET? 'Cuz I think they changed a lot between
the two.

--
--
~kaeli~
You feel stuck with your debt if you can't budge it.

http://www.ipwebdesign.net/wildAtHeart

http://www.ipwebdesign.net/kaelisSpace

How can I pass an image parameter in HTML? Is it possible???

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment