3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = true; $s = ''; while($a !== false) { $s .= 'a'; } echo $s;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
2 jumps found. (Code = 44) Position 1 = 6, Position 2 = 3
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 3
2 jumps found. (Code = 44) Position 1 = 6, Position 2 = 3
Branch analysis from position: 6
Branch analysis from position: 3
filename:       /in/iMI9T
function name:  (null)
number of ops:  8
compiled vars:  !0 = $a, !1 = $s
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <true>
    4     1        ASSIGN                                                   !1, ''
    5     2      > JMP                                                      ->4
    6     3    >   ASSIGN_OP                                     8          !1, 'a'
    5     4    >   TYPE_CHECK                                  1018          !0
          5      > JMPNZ                                                    ~5, ->3
    9     6    >   ECHO                                                     !1
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
188.23 ms | 1393 KiB | 13 Q