internals2-php-opcodes-php-unset-obj-2

  • Opcode Descriptions and
    Examples
  • UNSET_OBJ

  • UNSET_OBJ
  • UNSET_OBJ

    UNSET_OBJ

    PHP code

    <?php
    /*
     * Unset the property of the current object (this) and store the original value into "result".
     * opcode number: 76
     */
    $obj = new A();
    unset(
    $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 UNSET_OBJ     $4 !0,’num’
    8 5 RETURN       1