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<?php function foo(string|float $teste): ?array { return array(); } function bar(): ?array { return null; } foo('3'); bar();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4iMWM
function name:  (null)
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   INIT_FCALL                                               'foo'
          1        SEND_VAL                                                 '3'
          2        DO_FCALL                                      0          
   14     3        INIT_FCALL                                               'bar'
          4        DO_FCALL                                      0          
          5      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4iMWM
function name:  foo
number of ops:  4
compiled vars:  !0 = $teste
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    5     1      > RETURN                                                   <array>
    6     2*       VERIFY_RETURN_TYPE                                       
          3*     > 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/4iMWM
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 8.0.0


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