3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = foo(); while ($b) { echo "test\n"; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 5
Branch analysis from position: 5
2 jumps found. (Code = 44) Position 1 = 6, Position 2 = 4
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
2 jumps found. (Code = 44) Position 1 = 6, Position 2 = 4
Branch analysis from position: 6
Branch analysis from position: 4
filename:       /in/J3Xv9
function name:  (null)
number of ops:  7
compiled vars:  !0 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL_BY_NAME                                       'foo'
          1        DO_FCALL                                      0  $1      
          2        ASSIGN                                                   !0, $1
    4     3      > JMP                                                      ->5
    5     4    >   ECHO                                                     'test%0A'
    4     5    > > JMPNZ                                                    !0, ->4
    6     6    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
149.74 ms | 1392 KiB | 13 Q