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<?php for( $i=0;$i<=1000000;$i++ ) { $isOdd = (bool) ($i & 1); var_dump( isOdd ); }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
2 jumps found. (Code = 44) Position 1 = 12, Position 2 = 2
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 2
2 jumps found. (Code = 44) Position 1 = 12, Position 2 = 2
Branch analysis from position: 12
Branch analysis from position: 2
filename:       /in/SEChg
function name:  (null)
number of ops:  13
compiled vars:  !0 = $i, !1 = $isOdd
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 0
          1      > JMP                                                      ->10
    3     2    >   BW_AND                                           ~3      !0, 1
          3        BOOL                                             ~4      ~3
          4        ASSIGN                                                   !1, ~4
    4     5        INIT_FCALL                                               'var_dump'
          6        FETCH_CONSTANT                                   ~6      'isOdd'
          7        SEND_VAL                                                 ~6
          8        DO_ICALL                                                 
    2     9        PRE_INC                                                  !0
         10    >   IS_SMALLER_OR_EQUAL                                      !0, 1000000
         11      > JMPNZ                                                    ~9, ->2
    5    12    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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153.67 ms | 1394 KiB | 15 Q