3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(string $b) { return $b; } var_dump(foo()); var_dump('foo' == (bool) 'foo');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/BhHcb
function name:  (null)
number of ops:  11
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'foo'
          2        DO_FCALL                                      0  $0      
          3        SEND_VAR                                                 $0
          4        DO_ICALL                                                 
    8     5        INIT_FCALL                                               'var_dump'
          6        BOOL                                             ~2      'foo'
          7        IS_EQUAL                                         ~3      ~2, 'foo'
          8        SEND_VAL                                                 ~3
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

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

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
153.93 ms | 1397 KiB | 16 Q