Php/docs/internals2.opcodes.fetch-rw

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FETCH_RW

PHP code

<?php/* * Fetch the value of the varible of "name" to assign it to a variable? * opcode number: 86 */$x = 1;$a = 'x';$$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_RW local   $2 !1
  3 POST_INC     ~3 $2
  4 FREE       ~3
9 5 RETURN       1