Description:
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*Note* My PHP version is actually 5.3.3
The problem I've come up to is that printing a string with var_dump (for debugging 
purpose eg.) that contains null-characters are counted in the string length but 
are not in any way displayed in the var_dump output.

I'm not sure this should be considerate a bug or a feature request because it is 
something I want and perhaps not something that per design should be in this way.

Test script:
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<?php
$string = "123456"; // len 6
$string[0] = ''; (or = null, or = "\0")

var_dump($string); // Outputs string(6) "23456"

?>

Expected result:
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I would expect the above script to output something like string(6) "\0123456", 
that - in my world - would make more sense.