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<?php echo "start",PHP_EOL; $i=0; $b=1; $z=0; echo "before loop",PHP_EOL; while (true) { $i++; $b*=2; $z**=$z; echo "inside loop",PHP_EOL; if ($z>1e300) goto w0; } echo "after loop, something went wrong... debugging :)",PHP_EOL; var_dump($i, $b, $z); w0: echo "after loop",PHP_EOL; echo "after default",PHP_EOL;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 16
Branch analysis from position: 16
2 jumps found. (Code = 44) Position 1 = 17, Position 2 = 8
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
2 jumps found. (Code = 43) Position 1 = 15, Position 2 = 16
Branch analysis from position: 15
1 jumps found. (Code = 42) Position 1 = 24
Branch analysis from position: 24
Branch analysis from position: 16
filename:       /in/QD4Ft
function name:  (null)
number of ops:  29
compiled vars:  !0 = $i, !1 = $b, !2 = $z
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ECHO                                                     'start'
          1        ECHO                                                     '%0A'
    4     2        ASSIGN                                                   !0, 0
    5     3        ASSIGN                                                   !1, 1
    6     4        ASSIGN                                                   !2, 0
    8     5        ECHO                                                     'before+loop'
          6        ECHO                                                     '%0A'
    9     7      > JMP                                                      ->16
   10     8    >   PRE_INC                                                  !0
   11     9        ASSIGN_OP                                     3          !1, 2
   12    10        ASSIGN_OP                                    12          !2, !2
   13    11        ECHO                                                     'inside+loop'
         12        ECHO                                                     '%0A'
   14    13        IS_SMALLER                                               1.0e+300, !2
         14      > JMPZ                                                     ~9, ->16
         15    > > JMP                                                      ->24
    9    16    > > JMPNZ                                                    <true>, ->8
   16    17    >   ECHO                                                     'after+loop%2C+something+went+wrong...+debugging+%3A%29'
         18        ECHO                                                     '%0A'
   17    19        INIT_FCALL                                               'var_dump'
         20        SEND_VAR                                                 !0
         21        SEND_VAR                                                 !1
         22        SEND_VAR                                                 !2
         23        DO_ICALL                                                 
   19    24    >   ECHO                                                     'after+loop'
         25        ECHO                                                     '%0A'
   21    26        ECHO                                                     'after+default'
         27        ECHO                                                     '%0A'
         28      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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