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<?php $array = array( (object)array( 'first_name' => 'Léa', 'last_name' => 'Weber', ), (object)array( 'first_name' => 'Alexandre', 'last_name' => 'Dupont', ), (object)array( 'first_name' => 'Léa', 'last_name' => 'Zotal', ), (object)array( 'first_name' => 'Jérémie', 'last_name' => 'Hoffmann', ) ); usort($array, function($a, $b) { return [$a->last_name, $a->first_name] <=> [$b->last_name, $b->first_name]; }); var_export($array);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/7NiNb
function name:  (null)
number of ops:  18
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   CAST                                          8  ~1      <array>
          1        INIT_ARRAY                                       ~2      ~1
    9     2        CAST                                          8  ~3      <array>
          3        ADD_ARRAY_ELEMENT                                ~2      ~3
   13     4        CAST                                          8  ~4      <array>
          5        ADD_ARRAY_ELEMENT                                ~2      ~4
   17     6        CAST                                          8  ~5      <array>
          7        ADD_ARRAY_ELEMENT                                ~2      ~5
    3     8        ASSIGN                                                   !0, ~2
   22     9        INIT_FCALL                                               'usort'
         10        SEND_REF                                                 !0
         11        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2F7NiNb%3A22%240'
   26    12        SEND_VAL                                                 ~7
         13        DO_ICALL                                                 
   29    14        INIT_FCALL                                               'var_export'
         15        SEND_VAR                                                 !0
         16        DO_ICALL                                                 
         17      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2F7NiNb%3A22%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/7NiNb
function name:  {closure}
number of ops:  13
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   22     0  E >   RECV                                             !0      
          1        RECV                                             !1      
   23     2        FETCH_OBJ_R                                      ~2      !0, 'last_name'
          3        INIT_ARRAY                                       ~3      ~2
          4        FETCH_OBJ_R                                      ~4      !0, 'first_name'
          5        ADD_ARRAY_ELEMENT                                ~3      ~4
   25     6        FETCH_OBJ_R                                      ~5      !1, 'last_name'
          7        INIT_ARRAY                                       ~6      ~5
          8        FETCH_OBJ_R                                      ~7      !1, 'first_name'
          9        ADD_ARRAY_ELEMENT                                ~6      ~7
         10        SPACESHIP                                        ~8      ~3, ~6
         11      > RETURN                                                   ~8
   26    12*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2F7NiNb%3A22%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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