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<?php // in the first expression $a + $a++; // "++" has higher precedence than "+", so "$a++" is grouped: $a + ($a++); // in the second expressions $a + $a + $a++; // "++" again has higher precedence than "+": $a + $a + ($a++); // and "+" is a left-associative operator, so the left "+" is grouped: ($a + $a) + ($a++);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $a in /in/VbAqY on line 4

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