3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i = 'a'; $i <= '.'; ++$i) echo "$i ";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
2 jumps found. (Code = 44) Position 1 = 8, Position 2 = 2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 2
2 jumps found. (Code = 44) Position 1 = 8, Position 2 = 2
Branch analysis from position: 8
Branch analysis from position: 2
filename:       /in/9usVh
function name:  (null)
number of ops:  9
compiled vars:  !0 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'a'
          1      > JMP                                                      ->6
          2    >   NOP                                                      
          3        FAST_CONCAT                                      ~2      !0, '+'
          4        ECHO                                                     ~2
          5        PRE_INC                                                  !0
          6    >   IS_SMALLER_OR_EQUAL                                      !0, '.'
          7      > JMPNZ                                                    ~4, ->2
          8    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
173.34 ms | 937 KiB | 14 Q