[PHP] Object Copying
As we all know, this copies an object in PHP: $obj2 = $obj1 Assuming $obj1 is an object (of a class). I want this never, ever to happen unless I want it to. All the time, I run into something where PHP made a copy of my object for X odd reason -- I pass an object to a function, I put it in an array, etc etc etc. Is there a way I can have PHP warn me if an object is copied, or put that in the class code somehow? Preferable a way to fix PHP not to copy the object, but the reference. I'd settle for a warning system though. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] Specific References Incident
I have one specific incident I could use some help with too. I have the
following method:
function validate() {
if ($this->returning) {
$errors = array();
foreach ($this->children as $child) {
$child->error = "Foo";
$error = $child->validate();
if ($error) {
$this->errors_exist = 1;
array_push ($errors, $error);
}
}
}
$this->errors = $errors;
}
The $this->children attribute should be an array of (references to) objects.
I think somehow in the foreach ($this->children as $child) the objects are
being copied, as $child->validate(); seems not to effect the original objects.
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Re: [PHP] Specific References Incident
That's what I had thought too, but no:
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in
/home/ken/Projects/kwidgets/widgets.inc on line 74
On Thursday 10 January 2002 04:51 pm, Martin Towell wrote:
> does this work?? change
> foreach ($this->children as $child) {
> to
> foreach ($this->children as &$child) {
>
>
> -Original Message-
> From: Ken Kinder [mailto:[EMAIL PROTECTED]]
> Sent: Friday, January 11, 2002 10:44 AM
> To: [EMAIL PROTECTED]
> Subject: [PHP] Specific References Incident
>
>
> I have one specific incident I could use some help with too. I have the
> following method:
>
> function validate() {
> if ($this->returning) {
> $errors = array();
>
> foreach ($this->children as $child) {
> $child->error = "Foo";
> $error = $child->validate();
> if ($error) {
> $this->errors_exist = 1;
> array_push ($errors, $error);
> }
> }
> }
>
> $this->errors = $errors;
> }
>
> The $this->children attribute should be an array of (references to)
> objects.
>
> I think somehow in the foreach ($this->children as $child) the objects are
> being copied, as $child->validate(); seems not to effect the original
> objects.
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Re: [PHP] Specific References Incident
Negative.
On Thursday 10 January 2002 04:54 pm, Mark wrote:
> On Thu, 10 Jan 2002 16:49:45 -0700, Ken Kinder wrote:
> >That's what I had thought too, but no:
> >
> >Parse error: parse error, expecting `T_VARIABLE' or `'$'' in
> >/home/ken/Projects/kwidgets/widgets.inc on line 74
>
> how about this:
> foreach ($this->children as $key => $value) {
> $child=&$this->children[$key];
>
> >On Thursday 10 January 2002 04:51 pm, Martin Towell wrote:
> >> does this work?? change
> >>foreach ($this->children as $child) {
> >> to
> >>foreach ($this->children as &$child) {
> >>
> >>
> >> -Original Message-
> >> From: Ken Kinder [mailto:[EMAIL PROTECTED]]
> >> Sent: Friday, January 11, 2002 10:44 AM
> >> To: [EMAIL PROTECTED]
> >> Subject: [PHP] Specific References Incident
> >>
> >>
> >> I have one specific incident I could use some help with too. I
> >>have the
> >> following method:
> >>
> >> function validate() {
> >> if ($this->returning) {
> >>$errors = array();
> >>
> >>foreach ($this->children as $child) {
> >> $child->error = "Foo";
> >> $error = $child->validate();
> >> if ($error) {
> >> $this->errors_exist = 1;
> >> array_push ($errors, $error);
> >> }
> >>}
> >> }
> >>
> >> $this->errors = $errors;
> >> }
> >>
> >> The $this->children attribute should be an array of (references
>
> to)
>
> >> objects.
> >>
> >> I think somehow in the foreach ($this->children as $child) the
> >>objects are
> >> being copied, as $child->validate(); seems not to effect the
> >>original
> >> objects.
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[PHP] Second newbie question
I have a second newbie question, and I promise I really did try to find this in the docs. Is there a method that can be called when an attribute or method is called that doesn't exist? A catch-all method? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Specific References Incident
Nope. Tried that too.
On Thursday 10 January 2002 05:18 pm, Rasmus Lerdorf wrote:
> Use a while(list()=each()) loop.
>
> On Thu, 10 Jan 2002, Ken Kinder wrote:
> > Negative.
> >
> > On Thursday 10 January 2002 04:54 pm, Mark wrote:
> > > On Thu, 10 Jan 2002 16:49:45 -0700, Ken Kinder wrote:
> > > >That's what I had thought too, but no:
> > > >
> > > >Parse error: parse error, expecting `T_VARIABLE' or `'$'' in
> > > >/home/ken/Projects/kwidgets/widgets.inc on line 74
> > >
> > > how about this:
> > > foreach ($this->children as $key => $value) {
> > > $child=&$this->children[$key];
> > >
> > > >On Thursday 10 January 2002 04:51 pm, Martin Towell wrote:
> > > >> does this work?? change
> > > >>foreach ($this->children as $child) {
> > > >> to
> > > >>foreach ($this->children as &$child) {
> > > >>
> > > >>
> > > >> -Original Message-
> > > >> From: Ken Kinder [mailto:[EMAIL PROTECTED]]
> > > >> Sent: Friday, January 11, 2002 10:44 AM
> > > >> To: [EMAIL PROTECTED]
> > > >> Subject: [PHP] Specific References Incident
> > > >>
> > > >>
> > > >> I have one specific incident I could use some help with too. I
> > > >>have the
> > > >> following method:
> > > >>
> > > >> function validate() {
> > > >> if ($this->returning) {
> > > >>$errors = array();
> > > >>
> > > >>foreach ($this->children as $child) {
> > > >> $child->error = "Foo";
> > > >> $error = $child->validate();
> > > >> if ($error) {
> > > >> $this->errors_exist = 1;
> > > >> array_push ($errors, $error);
> > > >> }
> > > >>}
> > > >> }
> > > >>
> > > >> $this->errors = $errors;
> > > >> }
> > > >>
> > > >> The $this->children attribute should be an array of (references
> > >
> > > to)
> > >
> > > >> objects.
> > > >>
> > > >> I think somehow in the foreach ($this->children as $child) the
> > > >>objects are
> > > >> being copied, as $child->validate(); seems not to effect the
> > > >>original
> > > >> objects.
> >
> > --
> > PHP General Mailing List (http://www.php.net/)
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
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[PHP] FYI: Specific References Incident
>From PHP Cookbook:
for ($c = 0; $c < count($topics); $c++) {
...
}
Only way to do it.
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