The use of increment and decrement operators in method calls or in combination with other arithmetic operators is not recommended, because:
- It can significantly impair the readability of the code.
- It introduces additional side effects into a statement, with the potential for undefined behavior.
- It is safer to use these operators in isolation from any other arithmetic operators.
Noncompliant code example
$u8a = ++$u8b + $u8c--;
$foo = $bar++ / 4;
Compliant solution
The following sequence is clearer and therefore safer:
++$u8b;
$u8a = $u8b + $u8c;
$u8c--;
$foo = $bar / 4;
$bar++;
