3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'hello'; for ($i=0;$i<strlen($string);$i++){ echo $string[$i] . "/n"; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 7
Branch analysis from position: 7
2 jumps found. (Code = 44) Position 1 = 10, Position 2 = 3
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 3
2 jumps found. (Code = 44) Position 1 = 10, Position 2 = 3
Branch analysis from position: 10
Branch analysis from position: 3
filename:       /in/u4LSB
function name:  (null)
number of ops:  11
compiled vars:  !0 = $string, !1 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'hello'
    5     1        ASSIGN                                                   !1, 0
          2      > JMP                                                      ->7
    6     3    >   FETCH_DIM_R                                      ~4      !0, !1
          4        CONCAT                                           ~5      ~4, '%2Fn'
          5        ECHO                                                     ~5
    5     6        PRE_INC                                                  !1
          7    >   STRLEN                                           ~7      !0
          8        IS_SMALLER                                               !1, ~7
          9      > JMPNZ                                                    ~8, ->3
    7    10    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
166.42 ms | 1393 KiB | 13 Q