3v4l.org

run code in 300+ PHP versions simultaneously
<?php $value = 4294967295; echo 'value is int: ' . (($value >> 32 - 1) & 1) . '<br>'; $value = '4294967295'; echo 'value is string: ' . (($value >> 32 - 1) & 1); //OUTPUT
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Hlt2J
function name:  (null)
number of ops:  12
compiled vars:  !0 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 4294967295
    3     1        SR                                               ~2      !0, 31
          2        BW_AND                                           ~3      ~2, 1
          3        CONCAT                                           ~4      'value+is+int%3A+', ~3
          4        CONCAT                                           ~5      ~4, '%3Cbr%3E'
          5        ECHO                                                     ~5
    4     6        ASSIGN                                                   !0, '4294967295'
    5     7        SR                                               ~7      !0, 31
          8        BW_AND                                           ~8      ~7, 1
          9        CONCAT                                           ~9      'value+is+string%3A+', ~8
         10        ECHO                                                     ~9
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
151.55 ms | 1392 KiB | 13 Q