internals2-php-opcodes-php-fetch-r-8

  • Opcode Descriptions and
    Examples
  • FETCH_R

  • FETCH_R
  • FETCH_R

    FETCH_R

    PHP code

    <?php
    /*
     * Fetch the value of the varible of "name" to assign it to a variable?  Read-only?
     * opcode number: 80
     */
    $x 1;
    $a 'x';
    echo $
    $a;
    ?>

    PHP opcodes

    Function name: (null)

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

    line # op fetch ext return operands
    6 0 ASSIGN       !0,1
    7 1 ASSIGN       !1,’x’
    8 2 FETCH_R local   $2 !1
      3 ECHO       $2
    9 4 RETURN       1