read data into a TEXTBOX

cuwark · January 10th, 2004, 11:10 AM

here again ive knocked up something quick :)

im trying to read data into a textbox
i thought the code below could manage it
but i dont think so

can some one give me a solution.
the books i have shows
how to read data from textboxs and
how to put data into listboxs

<html>
<head>
<title>quick knocker</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>

<body bgcolor="#FFFFFF" text="#000000">
<form name="form1" method="post" action="">
<input type="text" name="testbox" size="20" maxlength="20">
testbox
</form>
<PHP

$value="am i in the box";
$testbox=$value;

?>

</body>
</html>

richard.york · January 10th, 2004, 02:55 PM

You use the value attribute.
What you were doing looked like JavaScript, PHP is not capable of accessing the document object model.

For your example:
<input type="text" name="testbox" size="20" maxlength="20" value="am i in the box">

To do it with a php variable:

<?php

$value= "am i in the box";
echo '<input type="text" name="testbox" size="20" maxlength="20" value="{$value}">';

?>

: )
Rich

:::::::::::::::::::::::::::::::::
Smiling Souls
http://www.smilingsouls.net
:::::::::::::::::::::::::::::::::

cuwark · January 10th, 2004, 04:07 PM

i actually copied and pasted the code but evertime i run it
the result is {$value} inside of the text box
instead of the string itself

thanks for helping though some how to me your code looks right

cuwark

richard.york · January 10th, 2004, 05:16 PM

Have you properly installed PHP?

What do you get when you run this:

<?php phpinfo(); ?>

Save as phpinfo.php

You should see a detailed output of configuration and environment settings.

: )
Rich

:::::::::::::::::::::::::::::::::
Smiling Souls
http://www.smilingsouls.net
:::::::::::::::::::::::::::::::::

cuwark · January 10th, 2004, 06:51 PM

yea ill give it a go plus in the mean time ill upload it to my webspace.

im sure it works, it must be a probs on my side.

ill let you know the out come in a few clicks

thanks again
cuwark

cuwark · January 10th, 2004, 07:05 PM

ok i did up load it to my web space and had the same result
the display box actually shows {$value}

i also tried it in maguma studio and got the same result

i dont know what to say really
now im scratching my head
can anyone help

the site is
http://www.enetpin.com/readbox.php

cuwark

richard.york · January 11th, 2004, 02:22 AM

Oh, OK,
Its my bad.. It has something to do with me using single quotes on the string.

This one works:
<?php

$value= "am i in the box";
echo "<input type='text' name='testbox' size='20' maxlength='20' value='{$value}'>";

?>

I suppose it just means that variable substitution doesn't happen when using single quotes. Hmmm. Funny, been programming PHP all this time and never ran into that! Here are a couple of pages that explain why.

http://www.php.net/manual/en/language.variables.php
http://www.php.net/manual/en/languag....syntax.single

Sorry about that!
: )
Rich

:::::::::::::::::::::::::::::::::
Smiling Souls
http://www.smilingsouls.net
:::::::::::::::::::::::::::::::::

richard.york · January 11th, 2004, 02:25 AM

Oh and if you're determined to use double quotes in your output (I would stick with singles personally) but you can also just escape the quotes with the backslash character:

echo "<input type=\"text\" name=\"testbox\" size=\"20\" maxlength=\"20\" value=\"{$value}\">";

: )
Rich

:::::::::::::::::::::::::::::::::
Smiling Souls
http://www.smilingsouls.net
:::::::::::::::::::::::::::::::::

cuwark · January 11th, 2004, 09:37 AM

thanks quesadilla5
you have help me alot i really needed that solution
i would of never figured it out but now you mention it
ill remember for life

double qoutes as wrappers and singles inside

thanks again
you are a topman

cuwark

nikolai · January 12th, 2004, 04:45 PM

I don't know if you've noticed, Rich (et al), but I typically use single quotes for ALL strings that don't have a variable substitution within it in the examples that I post. The reason is that PHP does NOT perform variable or escape character substitution in single-quoted strings, so it speeds things up to use them when I know that no variable exists. The speed increase is due to the fact that PHP doesn't need to perform more sophisticated parsing of the string before outputting it.

Some caveats -- the only escaped characters that PHP handles in single-quoted strings are the single-quote and the backslash For example, the character sequence \n in the following string is output literally as "backslash-n", not as a newline.

echo 'Hello \n world.';

A more complicated example:

echo 'He said, \'what is the root directory?\' I replied \"It\'s C:\\.\"\n';

This prints:
He said, 'what is the root directory?' I replied \"It's C:\.\"\n

Notice that the backslashes before the double quote characters and the newline 'n' character are NOT parsed as escape characters -- they're printed as literal backslashes.

Take care,

Nik
http://www.bigaction.org/