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<?php $data = [ ["a" => 2, "b" => 1, "c" => 3], ["a" => 1, "b" => 3, "c" => 2], ["a" => 1, "b" => 2, "c" => 3], ["a" => 2, "b" => 2, "c" => 3], ]; array_multisort( array_column($data, "a"), SORT_ASC, array_column($data, "b"), SORT_ASC, $data ); var_export($data);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RHv6A
function name:  (null)
number of ops:  20
compiled vars:  !0 = $data
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    9     1        INIT_FCALL                                               'array_multisort'
   10     2        INIT_FCALL                                               'array_column'
          3        SEND_VAR                                                 !0
          4        SEND_VAL                                                 'a'
          5        DO_ICALL                                         $2      
          6        SEND_VAL                                                 $2
   11     7        SEND_VAL                                                 4
   12     8        INIT_FCALL                                               'array_column'
          9        SEND_VAR                                                 !0
         10        SEND_VAL                                                 'b'
         11        DO_ICALL                                         $3      
         12        SEND_VAL                                                 $3
   13    13        SEND_VAL                                                 4
   14    14        SEND_REF                                                 !0
    9    15        DO_ICALL                                                 
   17    16        INIT_FCALL                                               'var_export'
         17        SEND_VAR                                                 !0
         18        DO_ICALL                                                 
         19      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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