3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ ['item1' => 80], ['item2' => 25], ['item3' => 85], ]; usort($array, fn($a, $b) => current($a) <=> current($b)); var_export($array);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/7Ytu6
function name:  (null)
number of ops:  10
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    9     1        INIT_FCALL                                               'usort'
          2        SEND_REF                                                 !0
          3        DECLARE_LAMBDA_FUNCTION                          ~2      [0]
          4        SEND_VAL                                                 ~2
          5        DO_ICALL                                                 
   10     6        INIT_FCALL                                               'var_export'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
          9      > 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/7Ytu6
function name:  {closure}
number of ops:  11
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        INIT_FCALL                                               'current'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $2      
          5        INIT_FCALL                                               'current'
          6        SEND_VAR                                                 !1
          7        DO_ICALL                                         $3      
          8        SPACESHIP                                        ~4      $2, $3
          9      > RETURN                                                   ~4
         10*     > RETURN                                                   null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
174.97 ms | 1003 KiB | 16 Q