3v4l.org

run code in 500+ PHP versions simultaneously
<?php function foo(): ?iterable { return array(); } function bar(): ?iterable { return null; } foo(); bar();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/rK9vc
function name:  (null)
number of ops:  5
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   13     0  E >   INIT_FCALL                                                   'foo'
          1        DO_FCALL                                          0          
   14     2        INIT_FCALL                                                   'bar'
          3        DO_FCALL                                          0          
          4      > RETURN                                                       1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/rK9vc
function name:  foo
number of ops:  3
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E > > RETURN                                                       <array>
    6     1*       VERIFY_RETURN_TYPE                                           
          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/rK9vc
function name:  bar
number of ops:  3
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   10     0  E > > RETURN                                                       null
   11     1*       VERIFY_RETURN_TYPE                                           
          2*     > RETURN                                                       null

End of function bar

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
166.31 ms | 3311 KiB | 15 Q