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<?php function foo($value = null){ static $count = 4; if ($value){ $count = $value; } return ++$count; } echo foo(), ','; echo foo(25), ','; echo foo(0), ','; echo foo('abc'), ','; echo foo();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/WtlUH
function name:  (null)
number of ops:  23
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   INIT_FCALL                                               'foo'
          1        DO_FCALL                                      0  $0      
          2        ECHO                                                     $0
          3        ECHO                                                     '%2C'
   10     4        INIT_FCALL                                               'foo'
          5        SEND_VAL                                                 25
          6        DO_FCALL                                      0  $1      
          7        ECHO                                                     $1
          8        ECHO                                                     '%2C'
   11     9        INIT_FCALL                                               'foo'
         10        SEND_VAL                                                 0
         11        DO_FCALL                                      0  $2      
         12        ECHO                                                     $2
         13        ECHO                                                     '%2C'
   12    14        INIT_FCALL                                               'foo'
         15        SEND_VAL                                                 'abc'
         16        DO_FCALL                                      0  $3      
         17        ECHO                                                     $3
         18        ECHO                                                     '%2C'
   13    19        INIT_FCALL                                               'foo'
         20        DO_FCALL                                      0  $4      
         21        ECHO                                                     $4
         22      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 4
Branch analysis from position: 3
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
filename:       /in/WtlUH
function name:  foo
number of ops:  7
compiled vars:  !0 = $value, !1 = $count
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV_INIT                                        !0      null
    3     1        BIND_STATIC                                              !1
    4     2      > JMPZ                                                     !0, ->4
    5     3    >   ASSIGN                                                   !1, !0
    7     4    >   PRE_INC                                          ~3      !1
          5      > RETURN                                                   ~3
    8     6*     > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


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