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<?php $a = [array ( 'id' => '1', 'location' => 'A Capella Salon', 'blankets' => '11', 'sleepingbags' => '0',), array ( 'id' => '2', 'location' => 'Allegan Library', 'blankets' => '22', 'sleepingbags' => '0', ), array ( 'id' => '3', 'location' => 'Allegan library', 'blankets' => '13', 'sleepingbags' => '0', ), array ( 'id' => '4', 'location' => 'Allegan Library', 'blankets' => '12', 'sleepingbags' => '2', ), array ( 'id' => '5', 'location' => 'Avente', 'blankets' => '2', 'sleepingbags' => '0', ), array ( 'id' => '6', 'location' => 'Biggby - Paw Paw ', 'blankets' => '10', 'sleepingbags' => '1', ), array ( 'id' => '7', 'location' => 'Biggby - Paw Paw ', 'blankets' => '3', 'sleepingbags' => '0', ), array ( 'id' => '8', 'location' => 'Biggby - Plainwell', 'blankets' => '7', 'sleepingbags' => '1', ),array ( 'id' => '9', 'location' => 'Biggby - Plainwell', 'blankets' => '7', 'sleepingbags' => '0', ),array ( 'id' => '10', 'location' => 'Biggby - Plainwell', 'blankets' => '7', 'sleepingbags' => '0', ),array ( 'id' => '11', 'location' => 'Biggby - Plainwell', 'blankets' => '5', 'sleepingbags' => '0', ),array ( 'id' => '12', 'location' => 'Biggby - Plainwell', 'blankets' => '2', 'sleepingbags' => '2', ),array ( 'id' => '13', 'location' => 'Biggby - Sprinkle', 'blankets' => '20', 'sleepingbags' => '0', ),array ( 'id' => '14', 'location' => 'Biggby - Sprinkle', 'blankets' => '5', 'sleepingbags' => '0', ),array ( 'id' => '15', 'location' => 'Biggby - West Main', 'blankets' => '10', 'sleepingbags' => '0', ),array ( 'id' => '16', 'location' => 'Biggby - Westnedge 311', 'blankets' => '6', 'sleepingbags' => '0', ),array ( 'id' => '17', 'location' => 'Biggby - Westnedge 311', 'blankets' => '2', 'sleepingbags' => '0', ),array ( 'id' => '18', 'location' => 'Biggby - Westnedge 311', 'blankets' => '1', 'sleepingbags' => '0', ),array ( 'id' => '19', 'location' => 'Biggby - Westnedge BestBuy', 'blankets' => '4', 'sleepingbags' => '0', ),array ( 'id' => '20', 'location' => 'Biggby - Williamston', 'blankets' => '21', 'sleepingbags' => '9', )]; $sumBlankets = []; foreach ($a as $row) { $k = $row['location']; // important if (!array_key_exists($k, $sumBlankets)) { $sumBlankets[$k] = ['blankets'=>0, 'sleepingbags'=>0]; } $sumBlankets[$k]['blankets'] += $row['blankets']; $sumBlankets[$k]['sleepingbags'] += $row['sleepingbags']; } var_export( $sumBlankets );
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 20
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 20
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 9, Position 2 = 11
Branch analysis from position: 9
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 11
Branch analysis from position: 20
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 20
filename:       /in/JIfWe
function name:  (null)
number of ops:  25
compiled vars:  !0 = $a, !1 = $sumBlankets, !2 = $row, !3 = $k
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
   10     1        ASSIGN                                                   !1, <array>
   12     2      > FE_RESET_R                                       $6      !0, ->20
          3    > > FE_FETCH_R                                               $6, !2, ->20
   13     4    >   FETCH_DIM_R                                      ~7      !2, 'location'
          5        ASSIGN                                                   !3, ~7
   15     6        ARRAY_KEY_EXISTS                                 ~9      !3, !1
          7        BOOL_NOT                                         ~10     ~9
          8      > JMPZ                                                     ~10, ->11
   16     9    >   ASSIGN_DIM                                               !1, !3
         10        OP_DATA                                                  <array>
   19    11    >   FETCH_DIM_R                                      ~14     !2, 'blankets'
         12        FETCH_DIM_RW                                     $12     !1, !3
         13        ASSIGN_DIM_OP                +=               1          $12, 'blankets'
         14        OP_DATA                                                  ~14
   20    15        FETCH_DIM_R                                      ~17     !2, 'sleepingbags'
         16        FETCH_DIM_RW                                     $15     !1, !3
         17        ASSIGN_DIM_OP                +=               1          $15, 'sleepingbags'
         18        OP_DATA                                                  ~17
   12    19      > JMP                                                      ->3
         20    >   FE_FREE                                                  $6
   24    21        INIT_FCALL                                               'var_export'
         22        SEND_VAR                                                 !1
         23        DO_ICALL                                                 
         24      > RETURN                                                   1

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