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<?php function foo( callable $cb ){ echo 'hi!'; } function bar(){} foo( 'bar' );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lYDbS
function name:  (null)
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   INIT_FCALL                                               'foo'
          1        SEND_VAL                                                 'bar'
          2        DO_FCALL                                      0          
          3      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lYDbS
function name:  foo
number of ops:  3
compiled vars:  !0 = $cb
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        ECHO                                                     'hi%21'
    5     2      > RETURN                                                   null

End of function foo

Function bar:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lYDbS
function name:  bar
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E > > RETURN                                                   null

End of function bar

Generated using Vulcan Logic Dumper, using php 8.0.0


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