Description:
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I wrote my own MySQL-Url-Wrapper, while this task, i figure out, PHP creates an Instance whitout calling the constructor.
To reproduce this, please use the example of the stream_wrapper_register Documentation. 

The same behavior in all reachable PHP Versions.

Reproduce code:
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// php4
function VariableStream() { echo "Constuctor called<br>";}

// php5
function __construct() { echo "Constuctor called<br>";}


Expected result:
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There ist no output like "Constuctor called"