internals2-php-opcodes-php-post-inc-obj-9

  • Opcode Descriptions and
    Examples

    • POST_INC_OBJ

  • POST_INC_OBJ

    • POST_INC_OBJ

    POST_INC_OBJ

    PHP code

    <?php
    /*
     * Increment the property value specified by prop-name and store the original value into result.
     * opcode number: 134
     */
    $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_POST_INC_OBJ     ~5 !0,’num’
      5 FREE       ~5
    8 6 RETURN       1