3v4l.org

run code in 300+ PHP versions simultaneously
<?php $letter = 'a'; do { if ($letter=='p') { echo $letter; } $letter++; } while ($letter < 'z'); $number = '0'; do { if ($number=='45') { echo $number; } $number++; } while ($number < 50);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 4
Branch analysis from position: 3
2 jumps found. (Code = 44) Position 1 = 7, Position 2 = 1
Branch analysis from position: 7
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 11
Branch analysis from position: 10
2 jumps found. (Code = 44) Position 1 = 14, Position 2 = 8
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
Branch analysis from position: 11
Branch analysis from position: 1
Branch analysis from position: 4
filename:       /in/uXqQ8
function name:  (null)
number of ops:  15
compiled vars:  !0 = $letter, !1 = $number
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'a'
    4     1    >   IS_EQUAL                                                 !0, 'p'
          2      > JMPZ                                                     ~3, ->4
    5     3    >   ECHO                                                     !0
    7     4    >   PRE_INC                                                  !0
    8     5        IS_SMALLER                                               !0, 'z'
          6      > JMPNZ                                                    ~5, ->1
   10     7    >   ASSIGN                                                   !1, '0'
   12     8    >   IS_EQUAL                                                 !1, '45'
          9      > JMPZ                                                     ~7, ->11
   13    10    >   ECHO                                                     !1
   15    11    >   PRE_INC                                                  !1
   16    12        IS_SMALLER                                               !1, 50
         13      > JMPNZ                                                    ~9, ->8
         14    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
156.61 ms | 1394 KiB | 13 Q