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<?php $array = [ 'list[P] = 1', 'list[A] = 1', 'list[F] = 2', 'list[B] = 1' ]; usort( $array, fn($a, $b) => strpbrk($a, '0123456789') <=> strpbrk($b, '0123456789') ); var_export($array);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/IR23b
function name:  (null)
number of ops:  10
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   10     1        INIT_FCALL                                               'usort'
   11     2        SEND_REF                                                 !0
   12     3        DECLARE_LAMBDA_FUNCTION                          ~2      [0]
   13     4        SEND_VAL                                                 ~2
   10     5        DO_ICALL                                                 
   15     6        INIT_FCALL                                               'var_export'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
          9      > RETURN                                                   1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/IR23b
function name:  {closure}
number of ops:  13
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   12     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        INIT_FCALL                                               'strpbrk'
          3        SEND_VAR                                                 !0
          4        SEND_VAL                                                 '0123456789'
          5        DO_ICALL                                         $2      
          6        INIT_FCALL                                               'strpbrk'
          7        SEND_VAR                                                 !1
          8        SEND_VAL                                                 '0123456789'
          9        DO_ICALL                                         $3      
         10        SPACESHIP                                        ~4      $2, $3
         11      > RETURN                                                   ~4
   13    12*     > RETURN                                                   null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.0.0


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