Both the $myVar assignment in line 1 and the $higher assignment in line 2
are dead. The first because $myVar is never used and the second because
$higher is always overwritten for every possible time line.
It seems like you are calling the size function count() as part of the test condition. You might want to compute the size beforehand, and not on each iteration.
If the size of the collection does not change during the iteration, it is
generally a good practice to compute it beforehand, and not on each iteration:
for($i=0;$i<count($array);$i++){// calls count() on each iteration}// Betterfor($i=0,$c=count($array);$i<$c;$i++){// calls count() just once}
This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line.
To visualize
will produce issues in the first and second line, while this second example
will produce no issues.