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<?php $array = array(); $first = array_slice($array, 0, 1); var_export($first[0]);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KYhWL
function name:  (null)
number of ops:  12
compiled vars:  !0 = $array, !1 = $first
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    4     1        INIT_FCALL                                                   'array_slice'
          2        SEND_VAR                                                     !0
          3        SEND_VAL                                                     0
          4        SEND_VAL                                                     1
          5        DO_ICALL                                             $3      
          6        ASSIGN                                                       !1, $3
    5     7        INIT_FCALL                                                   'var_export'
          8        FETCH_DIM_R                                          ~5      !1, 0
          9        SEND_VAL                                                     ~5
         10        DO_ICALL                                                     
         11      > RETURN                                                       1

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