$strandx is defined with code at the top of the page, as follows
$strandx = array('English' => array('Reading', 'Writing','Oral and Visual
Communication'),
'Mathematics' => array('Number Sense and Numeration', 'Measurement',
'Geometry and Spatial Sense','Patterning and Algebra','Data Management and
Probability'));
Peter Gumbrell
[EMAIL PROTECTED]
-----Original Message-----
From: John W. Holmes [mailto:[EMAIL PROTECTED]]
Sent: Sunday, February 02, 2003 2:50 PM
To: 'Peter Gumbrell'; [EMAIL PROTECTED]
Subject: RE: [PHP] selecting from an array based on form content
Where do you define the $strandx array? What is it's value?
---John W. Holmes...
PHP Architect - A monthly magazine for PHP Professionals. Get your copy
today. http://www.phparch.com/
> -----Original Message-----
> From: Peter Gumbrell [mailto:[EMAIL PROTECTED]]
> Sent: Sunday, February 02, 2003 2:08 PM
> To: [EMAIL PROTECTED]
> Subject: RE: [PHP] selecting from an array based on form content
>
> Thanks for the suggestion, John. When I implement your code, however,
I
> get
> an error saying
> Warning: Invalid argument supplied for foreach() in
> home/student/peter/public_html/week4.php on line 153
>
> where line 153 is
>
> foreach($strandx[$subject] as $strandy )
>
> This is the code as I have it now:
>
> switch($_POST['fsubject'])
> {
> case "English":
> $subject = "English";
> break;
> case "Mathematics":
> $subject = "Mathematics";
> break;
> }
> Print "<h4>Now select the strands for Grade $grades:
> $subject:</h4></td></tr><tr><td>";
>
> print "<td>";
> print "$subject"; //this tells me that I have the correct value
> foreach($strandx[$subject] as $strandy )
> {
> //print " <li><b>".$subject."</b>.<br />\n";
>
>
> print " <ul>\n";
>
> foreach( $strandy as $str )
>
> { print "<li>";
> checkbox("fstrand[]",$strandx,$str,0,0);
> print "</li>\n";
> }
>
> Any help would again be appreciated.
>
> Peter
> -----Original Message-----
> From: John W. Holmes [mailto:[EMAIL PROTECTED]]
> Sent: Sunday, February 02, 2003 1:28 PM
> To: 'Peter Gumbrell'; [EMAIL PROTECTED]
> Subject: RE: [PHP] selecting from an array based on form content
>
>
> > The following code loops through a multidimensional array, printing
> the
> > subject heading and then the strand:
> >
> > foreach( $strandx as $subjectx=>$strandy )
> > {
> > print " <li><b>".$subjectx."</b>.<br />\n";
> >
> >
> > print " <ul>\n";
> > asort( $strandy ); // sorts the strands
> > foreach( $strandy as $str )
> >
> > { print "<li>";
> > checkbox("fstrand[]",$subjectx,$str,0,0);
> > print "</li>\n";
> > }
> > print " </ul>\n";
> > }
> > print "</ol>\n";
> >
> > This is the array so far:
> > $strandx = array('English' => array('Reading', 'Writing','Oral and
> Visual
> > Communication'),
> > 'Mathematics' => array('Number Sense and Numeration', 'Measurement',
> > 'Geometry and Spatial Sense','Patterning and Algebra','Data
Management
> and
> > Probability'));
> >
> > I would like to limit the subject and strand being printed based on
> the
> > subject selected in a form. So, for example, if "English" is
selected
> in
> > the
> > form, only the subject name and the strands for English would be
> > published.
> > Could someone please help me with the code for this.
>
> Since you already know $subjectx (English or Math), then just use that
> value in your foreach() loop...
>
> Foreach($strandx[$subjectx] as $strandy)
>
> Where $subjectx would come from your form. Provide some validation
> first.
>
> So something like this:
>
> //Many ways to do this, just validate
> //whatever is coming from your form
> //matches a key in $strandx
> switch($_POST['subject'])
> {
> case "English"
> $subject = "English"
> break;
> default:
> $subject = "Mathematics";
> break;
> }
>
> print " <ol><li><b>".$subject."</b>.<br />\n";
> foreach( $strandx[$subject] as $strandy )
> {
> print " <ul>\n";
> asort($strandy ); // sorts the strands
> foreach( $strandy as $str )
> {
> print "<li>";
> checkbox("fstrand[]",$subjectx,$str,0,0);
> print "</li>\n";
> }
> print " </ul>\n";
> }
> print "</li></ol>\n";
>
> ---John W. Holmes...
>
> PHP Architect - A monthly magazine for PHP Professionals. Get your
copy
> today. http://www.phparch.com/
>
>
>
>
>
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