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<?php $items = [1,0,'a']; $fn = static function($a,$b){ return (string)$a <=> (string)$b; }; usort($items, $fn); var_dump($items);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OHn6k
function name:  (null)
number of ops:  11
compiled vars:  !0 = $items, !1 = $fn
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   ASSIGN                                                   !0, <array>
    6     1        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FOHn6k%3A6%240'
          2        ASSIGN                                                   !1, ~3
   10     3        INIT_FCALL                                               'usort'
          4        SEND_REF                                                 !0
          5        SEND_VAR                                                 !1
          6        DO_ICALL                                                 
   12     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FOHn6k%3A6%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OHn6k
function name:  {closure}
number of ops:  7
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   RECV                                             !0      
          1        RECV                                             !1      
    7     2        CAST                                          6  ~2      !0
          3        CAST                                          6  ~3      !1
          4        SPACESHIP                                        ~4      ~2, ~3
          5      > RETURN                                                   ~4
    8     6*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FOHn6k%3A6%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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