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<?php function foo() { function bar() { echo "bar"; } bar(); } foo(); foo();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/anQls
function name:  (null)
number of ops:  6
compiled vars:  none
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   NOP                                                      
  10     1        INIT_FCALL                                               'foo'
         2        DO_FCALL                                      0          
  11     3        INIT_FCALL                                               'foo'
         4        DO_FCALL                                      0          
         5      > RETURN                                                   1

Function %00bar%2Fin%2FanQls0x7fab7156f045:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/anQls
function name:  bar
number of ops:  2
compiled vars:  none
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   5     0  E >   ECHO                                                     'bar'
   6     1      > RETURN                                                   null

End of function %00bar%2Fin%2FanQls0x7fab7156f045

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/anQls
function name:  foo
number of ops:  4
compiled vars:  none
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   4     0  E >   DECLARE_FUNCTION                                         'bar'
   7     1        INIT_FCALL_BY_NAME                                       'bar'
         2        DO_FCALL                                      0          
   8     3      > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 7.3.0