Description:
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The situation is as following:
class mysqlControl holds a MySQL connection. This class has a __destruct() method to close this connection properly
Class x has one of these mysqlControl objects as a private variable.
Class y has a method to represent itself in a MySQL way, and needs to escape a string. For this it needs the mysqlControl that class X holds.

Now what happens is that Class x calls Class y's method to represent itself in some form that's useful to query MySQL. As a parameter to y's method X gives it's mysqlControl. Before y's method actually starts executing, mysqlControl's destructor is called. This means the connection is closed, and everything breaks.

Expected result:
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I expected method y to not call mysqlControl's destructor but just uses the mysqlControl given and forgets about it.

Actual result:
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mysqlControl's destructor gets called, breaking the mysql_real_escape_string() method before it could be used by class Y's method.