QM_ASSIGN

PHP code

<?php
/*
 * Question Mark Assign, used twice inside a question mark assign to temporarily assign result as value1  (this is followed up with an ASSIGN bytecode)
 * opcode number: 22
 */
function A(){
 echo 1?2:3;
}

function B(){
 $b = 0;
 $a = $b > 1 ? 10: 11;
}
?>

PHP opcodes

Function name: (null)

Compiled variables: none

line#op fetchextreturn operands
60 NOP      
101 NOP      
142 RETURN     1

Function name: A

Compiled variables: none

line#op fetchextreturn operands
70 JMPZ     1,->3
 1 QM_ASSIGN   ~0 2
 2 JMP     ->4
 3 QM_ASSIGN   ~0 3
 4 ECHO     ~0
85 RETURN     null

Function name: B

Compiled variables: !0=$b, !1=$a

line#op fetchextreturn operands
110 ASSIGN     !0,0
121 IS_SMALLER   ~1 1,!0
 2 JMPZ     ~1,->5
 3 QM_ASSIGN   ~2 10
 4 JMP     ->6
 5 QM_ASSIGN   ~2 11
 6 ASSIGN     !1,~2
137 RETURN     null
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