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<?php $a = [1,1,2,3]; $b = [2,3]; $c = array_intersect($a,$b); $c = implode('', $c); var_dump($c);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/NKA2G
function name:  (null)
number of ops:  16
compiled vars:  !0 = $a, !1 = $b, !2 = $c
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, <array>
    5     2        INIT_FCALL                                               'array_intersect'
          3        SEND_VAR                                                 !0
          4        SEND_VAR                                                 !1
          5        DO_ICALL                                         $5      
          6        ASSIGN                                                   !2, $5
    6     7        INIT_FCALL                                               'implode'
          8        SEND_VAL                                                 ''
          9        SEND_VAR                                                 !2
         10        DO_ICALL                                         $7      
         11        ASSIGN                                                   !2, $7
    7    12        INIT_FCALL                                               'var_dump'
         13        SEND_VAR                                                 !2
         14        DO_ICALL                                                 
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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