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<?php foreach(explode('.','a.b.c.d.e.f.g') as $k => $v){ echo $k .'_'. $v.PHP_EOL; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 5, Position 2 = 12
Branch analysis from position: 5
2 jumps found. (Code = 78) Position 1 = 6, Position 2 = 12
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 5
Branch analysis from position: 5
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/U78gW
function name:  (null)
number of ops:  14
compiled vars:  !0 = $v, !1 = $k
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'explode'
          1        SEND_VAL                                                 '.'
          2        SEND_VAL                                                 'a.b.c.d.e.f.g'
          3        DO_ICALL                                         $2      
          4      > FE_RESET_R                                       $3      $2, ->12
          5    > > FE_FETCH_R                                       ~4      $3, !0, ->12
          6    >   ASSIGN                                                   !1, ~4
    4     7        CONCAT                                           ~6      !1, '_'
          8        CONCAT                                           ~7      ~6, !0
          9        CONCAT                                           ~8      ~7, '%0A'
         10        ECHO                                                     ~8
    3    11      > JMP                                                      ->5
         12    >   FE_FREE                                                  $3
    5    13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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