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<?php $str='a-1-2-3-4'; list($a, $b, $c) = (explode('-', $str, 4) + array_fill(0, 3, NULL)); echo $a; echo $b; echo $c;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/aKPcU
function name:  (null)
number of ops:  23
compiled vars:  !0 = $str, !1 = $a, !2 = $b, !3 = $c
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'a-1-2-3-4'
    5     1        INIT_FCALL                                               'explode'
          2        SEND_VAL                                                 '-'
          3        SEND_VAR                                                 !0
          4        SEND_VAL                                                 4
          5        DO_ICALL                                         $5      
          6        INIT_FCALL                                               'array_fill'
          7        SEND_VAL                                                 0
          8        SEND_VAL                                                 3
          9        SEND_VAL                                                 null
         10        DO_ICALL                                         $6      
         11        ADD                                              ~7      $5, $6
         12        FETCH_LIST_R                                     $8      ~7, 0
         13        ASSIGN                                                   !1, $8
         14        FETCH_LIST_R                                     $10     ~7, 1
         15        ASSIGN                                                   !2, $10
         16        FETCH_LIST_R                                     $12     ~7, 2
         17        ASSIGN                                                   !3, $12
         18        FREE                                                     ~7
    7    19        ECHO                                                     !1
    8    20        ECHO                                                     !2
    9    21        ECHO                                                     !3
         22      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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