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<?php function test() { return("0"); } $res = test(); if (!$res) echo "false!"; var_dump((bool) "0", (bool) "");
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 6
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
filename:       /in/kjpjv
function name:  (null)
number of ops:  13
compiled vars:  !0 = $res
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   INIT_FCALL                                               'test'
          1        DO_FCALL                                      0  $1      
          2        ASSIGN                                                   !0, $1
    6     3        BOOL_NOT                                         ~3      !0
          4      > JMPZ                                                     ~3, ->6
          5    >   ECHO                                                     'false%21'
    8     6    >   INIT_FCALL                                               'var_dump'
          7        BOOL                                             ~4      '0'
          8        SEND_VAL                                                 ~4
          9        BOOL                                             ~5      ''
         10        SEND_VAL                                                 ~5
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

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

End of function test

Generated using Vulcan Logic Dumper, using php 8.0.0


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