Order of evaluation

The original pre-increment question

$n = 1;
print $n / ++$n;

• LHS operand of / evaluated to lvalue $n
• RHS operand of / is evaluated to lvalue $n, incrementing $n to 2 at the same time
• lvalues $n,$n converted to rvalues 2,2
• 2/2 evaluated to 1

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