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<?php $years = array( array(2015 => '2015'), array(2016 => '2016'), array(2017 => '2017'), array(2018 => '2018'), array(2019 => '2019'), array(2020 => '2020'), array(2021 => '2021'), array(2022 => '2022'), array(2023 => '2023') ); // var_export(array_merge(...$years)); // loses numeric associative keys // var_export(call_user_func_array('array_merge', $years)); // loses numeric associative keys // var_export(array_reduce($years, 'array_merge', array())); // loses numeric associative keys var_export(iterator_to_array(new RecursiveIteratorIterator(new RecursiveArrayIterator($years))));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9rEm4
function name:  (null)
number of ops:  14
compiled vars:  !0 = $years
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
   18     1        INIT_FCALL                                                   'var_export'
          2        INIT_FCALL                                                   'iterator_to_array'
          3        NEW                                                  $2      'RecursiveIteratorIterator'
          4        NEW                                                  $3      'RecursiveArrayIterator'
          5        SEND_VAR_EX                                                  !0
          6        DO_FCALL                                          0          
          7        SEND_VAR_NO_REF_EX                                           $3
          8        DO_FCALL                                          0          
          9        SEND_VAR                                                     $2
         10        DO_ICALL                                             $6      
         11        SEND_VAR                                                     $6
         12        DO_ICALL                                                     
         13      > RETURN                                                       1

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