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<?php $arr = [1]; usort($arr, fn($a, $b) => gibberish); $arr = [1,2]; usort($arr, fn($a, $b) => gibberish);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QDT38
function name:  (null)
number of ops:  13
compiled vars:  !0 = $arr
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        INIT_FCALL                                               'usort'
          2        SEND_REF                                                 !0
          3        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FQDT38%3A4%240'
          4        SEND_VAL                                                 ~2
          5        DO_ICALL                                                 
    6     6        ASSIGN                                                   !0, <array>
    7     7        INIT_FCALL                                               'usort'
          8        SEND_REF                                                 !0
          9        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FQDT38%3A7%241'
         10        SEND_VAL                                                 ~5
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FQDT38%3A4%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QDT38
function name:  {closure}
number of ops:  5
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        FETCH_CONSTANT                                   ~2      'gibberish'
          3      > RETURN                                                   ~2
          4*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FQDT38%3A4%240

Function %00%7Bclosure%7D%2Fin%2FQDT38%3A7%241:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QDT38
function name:  {closure}
number of ops:  5
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        FETCH_CONSTANT                                   ~2      'gibberish'
          3      > RETURN                                                   ~2
          4*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FQDT38%3A7%241

Generated using Vulcan Logic Dumper, using php 8.0.0


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