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<?php $haystack = ['shmest', 'test', 'fest']; $values = 'test'; $values = (array)$values; var_dump($values);
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = -2
filename:       /in/FoLUD
function name:  (null)
number of ops:  8
compiled vars:  !0 = $haystack, !1 = $values
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   ASSIGN                                                   !0, <array>
   4     1        ASSIGN                                                   !1, 'test'
   5     2        CAST                                          7  ~4      !1
         3        ASSIGN                                                   !1, ~4
   6     4        INIT_FCALL                                               'var_dump'
         5        SEND_VAR                                                 !1
         6        DO_ICALL                                                 
         7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.1.0