it does not set $status to 0, it merely tests whether status is *equal to* zero (remember == tests for numeric equality) and returns 0 if yes, and 1 if not. here, a lengthier version: 
if ($status == 0) {
 return 0;
} else {
 return 1;
}

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In reply to Re: variable set to 0 ? 0 : 1 by somniculosus
in thread variable set to 0 ? 0 : 1 by c

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