> -----Original Message-----
> From: Kris Deugau [mailto:[email protected]]
> Sent: Thursday, December 16, 2010 11:57 AM
> To: [email protected]
> Subject: [PHP] String passed to object constructor turning into an
instance of
> that object?
>
> I'm in the process of migrating customer websites off an old legacy server
> that's pushing EOL, and starting to show hardware failures.
>
> One site is throwing errors on what, so far as I can tell, should be
perfectly
> working code.
>
> The original code works fine on both CentOS 3 (PHP 4.3.2) and CentOS 4
> (4.3.9); the "new" server is still a bit outdated (Debian etch plus some
> backports and updates from lenny; PHP 5.2.0).
>
> The site was designed by staff at a previous hosting company and uses a
> combination of the Fusebox app framework (which seems to work OK, after
> a few relatively minor fixes) and a custom OOP structure.
>
> I'm not really sure what the actual problem is, but I've reached the point
> where this:
>
>
> class SelectBoxOption extends Tag {
> function SelectBoxOption($name, $value, $selected=false) {
> parent::Tag("option", $name);
> $this->addAttribute("value", $value);
> if($selected) {
> $this->addAttribute("selected", '', false);
> }
> if ($name == "") { echo " missing name!<br>\n"; }
> // else { print " name $name<br>\n"; }
> if ($value == "") { echo " missing value!<br>\n"; }
> }
>
>
> will parse and execute, but:
> - the page will contain "missing value!" for each <option> in the
> <select> this is generating
> - it will *not* contain "missing name!"
> - the <option> tags in the final output don't have content or value
> (they should have both).
>
> If I uncomment that else, I get:
>
>
> adding option <name1> with <value1>
> name <value1>
>
> Catchable fatal error: Object of class SelectBoxOption could not be
> converted to string in
> <webroot>/includes/classes/core/display/form/input/SelectBoxOption.php
> on line 12
>
What's the actual line #12 in the file SelectBoxOption.php? The
SelectBoxOption code you presented has 11 lines unless it's a CNP error.
Regards,
Tommy
>
> I found the place this object is created, and added some debugging
> output before *and* after that call:
>
>
> echo "adding option ".$row->$nameField." with ".
> $row->$valueField."<br>\n";
> $this->add(new SelectBoxOption($row->$nameField,
> $row->$valueField, $selected));
> echo "added option ".$row->$nameField." with ".
> $row->$valueField."<br>\n";
>
>
> which behaves correctly and spits out the name and value (retrieved from
> a database - thankfully I haven't had to track *that* down... yet).
>
> Can anyone explain why a string passed by value (apparently) would
> suddenly mutate into a SelectBoxOption object? I've confirmed that this
> is exactly what happens by adding this:
>
>
> if (is_a($name,'SelectBoxOption')) {
> print "name isn't a SelectBoxOption, silly rabbit!<br>\n";
> }
>
>
> as the very next set of lines after "function SelectBoxOption(....".
>
> I wondered while typing this if $name and $value might have ended up as
> special variables somewhere, but renaming them with an opt_ prefix
> didn't change anything.
>
> -kgd
>
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