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<?php $string = '1,2,3'; $ids = array_map(fn(string $x): int => $x, explode(',', $string)); var_export($ids);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jhWgs
function name:  (null)
number of ops:  15
compiled vars:  !0 = $string, !1 = $ids
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '1%2C2%2C3'
    4     1        INIT_FCALL                                               'array_map'
          2        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FjhWgs%3A4%240'
          3        SEND_VAL                                                 ~3
          4        INIT_FCALL                                               'explode'
          5        SEND_VAL                                                 '%2C'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $4      
          8        SEND_VAR                                                 $4
          9        DO_ICALL                                         $5      
         10        ASSIGN                                                   !1, $5
    5    11        INIT_FCALL                                               'var_export'
         12        SEND_VAR                                                 !1
         13        DO_ICALL                                                 
         14      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FjhWgs%3A4%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jhWgs
function name:  {closure}
number of ops:  5
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
          1        VERIFY_RETURN_TYPE                                       !0
          2      > RETURN                                                   !0
          3*       VERIFY_RETURN_TYPE                                       
          4*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FjhWgs%3A4%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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