3v4l.org

run code in 300+ PHP versions simultaneously
<?php function whatever(callable $f) { echo 'dupa'; } whatever(function() { return; });
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1UJti
function name:  (null)
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   INIT_FCALL                                               'whatever'
          1        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2F1UJti%3A7%240'
          2        SEND_VAL                                                 ~0
          3        DO_FCALL                                      0          
          4      > RETURN                                                   1

Function whatever:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1UJti
function name:  whatever
number of ops:  3
compiled vars:  !0 = $f
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    4     1        ECHO                                                     'dupa'
    5     2      > RETURN                                                   null

End of function whatever

Function %00%7Bclosure%7D%2Fin%2F1UJti%3A7%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1UJti
function name:  {closure}
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E > > RETURN                                                   null
          1*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2F1UJti%3A7%240

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
155.74 ms | 1397 KiB | 14 Q