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<?php function foo() { $array = array(); return empty($array); } function bar() { $array = array(1); return empty($array); } var_dump(foo()); var_dump(bar());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/P3BiW
function name:  (null)
number of ops:  11
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'foo'
          2        DO_FCALL                                      0  $0      
          3        SEND_VAR                                                 $0
          4        DO_ICALL                                                 
   15     5        INIT_FCALL                                               'var_dump'
          6        INIT_FCALL                                               'bar'
          7        DO_FCALL                                      0  $2      
          8        SEND_VAR                                                 $2
          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/P3BiW
function name:  foo
number of ops:  4
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   ASSIGN                                                   !0, <array>
    5     1        ISSET_ISEMPTY_CV                                 ~2      !0
          2      > RETURN                                                   ~2
    6     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/P3BiW
function name:  bar
number of ops:  4
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   ASSIGN                                                   !0, <array>
   11     1        ISSET_ISEMPTY_CV                                 ~2      !0
          2      > RETURN                                                   ~2
   12     3*     > RETURN                                                   null

End of function bar

Generated using Vulcan Logic Dumper, using php 8.0.0


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