please check the following code.
$imagebaseurl = \'support/content_editor/uploads/$name\';
The $imagebaseurl is a variable th
$imagebaseurl = 'support/content_editor/uploads/' . $name;
or
$imagebaseurl = "support/content_editor/uploads/{$name}";
Note that if you use double quotes, you can also write the above as:
$imagebaseurl = "support/content_editor/uploads/$name";
It's good though to get in the habit of using {$...} in double quotes instead of only $..., for times where you need to insert the variable in a string where it's not obvious to PHP which part is the variable and which part is the string.
If you want the best performance, use string concatenation with single quotes.