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<?php $array = array(3,2,1); function sortfunction($a, $b){ if ($a < $b) return 0; else return 1; } usort($array, 'sortfunction'); var_dump($array);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/j90m2
function name:  (null)
number of ops:  9
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        INIT_FCALL                                               'usort'
          2        SEND_REF                                                 !0
          3        SEND_VAL                                                 'sortfunction'
          4        DO_ICALL                                                 
    6     5        INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Function sortfunction:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 6
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/j90m2
function name:  sortfunction
number of ops:  8
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        IS_SMALLER                                               !0, !1
          3      > JMPZ                                                     ~2, ->6
          4    > > RETURN                                                   0
          5*       JMP                                                      ->7
          6    > > RETURN                                                   1
          7*     > RETURN                                                   null

End of function sortfunction

Generated using Vulcan Logic Dumper, using php 8.0.0


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