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<?php $inventory = [ ['type' => 'fruit', 'price' => 3.50], ['type' => 'milk', 'price' => 2.90], ['type' => 'pork', 'price' => 5.43], ]; usort( $inventory, fn(array $a, array $b): int => $b['price'] <=> $a['price'] ); print_r($inventory);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/fHTXF
function name:  (null)
number of ops:  10
compiled vars:  !0 = $inventory
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    9     1        INIT_FCALL                                                   'usort'
   10     2        SEND_REF                                                     !0
   11     3        DECLARE_LAMBDA_FUNCTION                              ~2      [0]
   12     4        SEND_VAL                                                     ~2
    9     5        DO_ICALL                                                     
   14     6        INIT_FCALL                                                   'print_r'
          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/fHTXF
function name:  {closure:/in/fHTXF:11}
number of ops:  9
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   11     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
          2        FETCH_DIM_R                                          ~2      !1, 'price'
          3        FETCH_DIM_R                                          ~3      !0, 'price'
          4        SPACESHIP                                            ~4      ~2, ~3
          5        VERIFY_RETURN_TYPE                                           ~4
          6      > RETURN                                                       ~4
   12     7*       VERIFY_RETURN_TYPE                                           
          8*     > RETURN                                                       null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.5.0


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