internals2-php-opcodes-php-pre-dec-obj-1

  • Opcode Descriptions and
    Examples
  • PRE_DEC_OBJ

  • PRE_DEC_OBJ
  • PRE_DEC_OBJ

    PRE_DEC_OBJ

    PHP code

    <?php
    /*
     * 
     * opcode number: 133
     */
    $obj = new A();
    --
    $obj->num;
    ?>

    PHP opcodes

    Function name: (null)

    Compiled variables: !0=$obj

    line # op fetch ext return operands
    6 0 ZEND_FETCH_CLASS     :0 ‘A’
      1 NEW     $1 :0
      2 DO_FCALL_BY_NAME   0    
      3 ASSIGN       !0,$1
    7 4 ZEND_PRE_DEC_OBJ       !0,’num’
    8 5 RETURN       1