3v4l.org

run code in 300+ PHP versions simultaneously
<?php for($i = 0; $i <= 62; $i += 6) { $param1 = ($i+6) - 6; $param2 = $param1 + 6; if($param2 <= 60) { $param2 = ($param1 + 6) - 6; } echo "substr(".$param1.",".$param2.")<br>"; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 18
Branch analysis from position: 18
2 jumps found. (Code = 44) Position 1 = 20, Position 2 = 2
Branch analysis from position: 20
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 2
2 jumps found. (Code = 43) Position 1 = 9, Position 2 = 12
Branch analysis from position: 9
2 jumps found. (Code = 44) Position 1 = 20, Position 2 = 2
Branch analysis from position: 20
Branch analysis from position: 2
Branch analysis from position: 12
filename:       /in/5hBpV
function name:  (null)
number of ops:  21
compiled vars:  !0 = $i, !1 = $param1, !2 = $param2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 0
          1      > JMP                                                      ->18
    4     2    >   ADD                                              ~4      !0, 6
          3        SUB                                              ~5      ~4, 6
          4        ASSIGN                                                   !1, ~5
    5     5        ADD                                              ~7      !1, 6
          6        ASSIGN                                                   !2, ~7
    7     7        IS_SMALLER_OR_EQUAL                                      !2, 60
          8      > JMPZ                                                     ~9, ->12
    8     9    >   ADD                                              ~10     !1, 6
         10        SUB                                              ~11     ~10, 6
         11        ASSIGN                                                   !2, ~11
   11    12    >   CONCAT                                           ~13     'substr%28', !1
         13        CONCAT                                           ~14     ~13, '%2C'
         14        CONCAT                                           ~15     ~14, !2
         15        CONCAT                                           ~16     ~15, '%29%3Cbr%3E'
         16        ECHO                                                     ~16
    3    17        ASSIGN_OP                                     1          !0, 6
         18    >   IS_SMALLER_OR_EQUAL                                      !0, 62
         19      > JMPNZ                                                    ~18, ->2
   13    20    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
155.52 ms | 1394 KiB | 13 Q