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<?php $jobs = [ ['count' => 3, 'yearmonth' => '2019-7'], ['count' => 3, 'yearmonth' => '2019-9'], ['count' => 5, 'yearmonth' => '2019-10'], ]; $dates = [ ['yearmonth' => '2019-6'], ['yearmonth' => '2019-7'], ['yearmonth' => '2019-8'], ['yearmonth' => '2019-9'], ['yearmonth' => '2019-10'], ]; $lookup = array_column($jobs, 'count', 'yearmonth'); foreach ($dates as &$date) { $date['count'] = $lookup[$date['yearmonth']] ?? 0; } var_export($dates);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 9, Position 2 = 17
Branch analysis from position: 9
2 jumps found. (Code = 126) Position 1 = 10, Position 2 = 17
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
filename:       /in/Ct9Yl
function name:  (null)
number of ops:  22
compiled vars:  !0 = $jobs, !1 = $dates, !2 = $lookup, !3 = $date
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    8     1        ASSIGN                                                       !1, <array>
   16     2        INIT_FCALL                                                   'array_column'
          3        SEND_VAR                                                     !0
          4        SEND_VAL                                                     'count'
          5        SEND_VAL                                                     'yearmonth'
          6        DO_ICALL                                             $6      
          7        ASSIGN                                                       !2, $6
   18     8      > FE_RESET_RW                                          $8      !1, ->17
          9    > > FE_FETCH_RW                                                  $8, !3, ->17
   19    10    >   FETCH_DIM_R                                          ~10     !3, 'yearmonth'
         11        FETCH_DIM_IS                                         ~11     !2, ~10
         12        COALESCE                                             ~12     ~11
         13        QM_ASSIGN                                            ~12     0
         14        ASSIGN_DIM                                                   !3, 'count'
         15        OP_DATA                                                      ~12
   18    16      > JMP                                                          ->9
         17    >   FE_FREE                                                      $8
   22    18        INIT_FCALL                                                   'var_export'
         19        SEND_VAR                                                     !1
         20        DO_ICALL                                                     
         21      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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