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<?php $myArr = array ( "John" => array ( "height"=>175, "weight"=>85, "age"=>"24" ), "Phil" => array ( "height"=>145, "weight"=>75, "age"=>"22" ), "Jim" => array ( "height"=>195, "weight"=>140, "age"=>"29" ) ); // sort by height $sorter = function($a,$b){return $a['height'] - $b['height'];}; usort($myArr, $sorter); print_r($myArr);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/o9jso
function name:  (null)
number of ops:  11
compiled vars:  !0 = $myArr, !1 = $sorter
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
   22     1        DECLARE_LAMBDA_FUNCTION                              ~3      [0]
          2        ASSIGN                                                       !1, ~3
   24     3        INIT_FCALL                                                   'usort'
          4        SEND_REF                                                     !0
          5        SEND_VAR                                                     !1
          6        DO_ICALL                                                     
   26     7        INIT_FCALL                                                   'print_r'
          8        SEND_VAR                                                     !0
          9        DO_ICALL                                                     
         10      > RETURN                                                       1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/o9jso
function name:  {closure:/in/o9jso:22}
number of ops:  7
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   22     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
          2        FETCH_DIM_R                                          ~2      !0, 'height'
          3        FETCH_DIM_R                                          ~3      !1, 'height'
          4        SUB                                                  ~4      ~2, ~3
          5      > RETURN                                                       ~4
          6*     > RETURN                                                       null

End of Dynamic Function 0

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