php4 to php5 conversion: Cannot re-assign $this

[mikehoy]

I am trying to convert a php4 app to php5 and am getting this error (Fatal error: Cannot re-assign $this in ) when I call this class.

 

$this = $this->createUnique($new); is the line that generates the error.

 

I try to rename $this to $_this but it does not help. I think I lose the reference to the object later on in the code.

 

Then I will get an error like (Fatal error: Call to a member function createUnique() on a non-object in)

 

Is there another way to reference the current instance of an object in php5?

 

Any help appreciated...

 

 

 

Code Example:

class imageobject{

var $handle;
var $height=0;
var $width=0;
var $directory;
var $filename;


//constructor
function imageobject($directory,$filename,$width=0,$height=0,$color="FFFFFF")
{
$this->directory = $directory;
$this->filename = $filename;

if ($filename=="" && $width>0 && $height>0){

$new = $this->createImage($width,$height);
$this = $this->createUnique($new);

}elseif (file_exists($directory.$filename)){
$size = GetImageSize($directory.$filename);
if ($size) $this->handle = $this->getHandle($directory.$filename,$size[2]);
$this->width = $size[0];
$this->height = $size[1];

}


function createUnique($imgnew)
{
$this->type = substr($this->output,0,3);

$unique_str = $this->uniqueName();
switch ($this->type){
case "png":
imagepng($imgnew,RES_DIR.$unique_str);
break;
default:
imagejpeg($imgnew,RES_DIR.$unique_str,$this->quality);
break;
}

$this->handle && imagedestroy($this->handle);
$newobject = new imageobject(RES_DIR,$unique_str,$this->type);
return $newobject;
}

)//end class

[Maq]

(I put

tags in for you, please use them next time)

[AbraCadaver]

You can't use $this as a variable name, it is reserved:

 

$something_else = $this->createUnique($new);

[mikehoy]

I changed the variable name to $_this

 

Then I get an error (Fatal error: Call to a member function createUnique() on a non-object in) in this line

 

$new = $this->createImage($width,$height);

[ignace]

I changed the variable name to $_this

 

Then I get an error (Fatal error: Call to a member function createUnique() on a non-object in) in this line

 

$new = $this->createImage($width,$height);

 

Maybe learn PHP first? AbraCadaver already told you how to solve the problem:

 

You can't use $this as a variable name, it is reserved:

 

$something_else = $this->createUnique($new);

[mikehoy]

I changed the variable name to $_this

 

Then I get an error (Fatal error: Call to a member function createUnique() on a non-object in) in this line

 

$new = $this->createImage($width,$height);

 

Maybe learn PHP first? AbraCadaver already told you how to solve the problem:

 

You can't use $this as a variable name, it is reserved:

 

$something_else = $this->createUnique($new);

 

 

Thanks AbraCadaver that did solve this issue...

[PFMaBiSmAd]

@Yasoymama, you need to start your own threads for your coding problems so that you can find and track your own threads. I have split your post in this thread into its own thread in this same forum section.

 

Locking this thread...