3v4l.org

run code in 300+ PHP versions simultaneously
<?php $n = 0 - 0.000000000000000000000000000000001; echo '$n: '; var_dump($n); echo 'round($n): '; var_dump(round($n));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Esfv3
function name:  (null)
number of ops:  13
compiled vars:  !0 = $n
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, -1.0e-33
    5     1        ECHO                                                     '%24n%3A+'
    6     2        INIT_FCALL                                               'var_dump'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                                 
    7     5        ECHO                                                     'round%28%24n%29%3A+'
    8     6        INIT_FCALL                                               'var_dump'
          7        INIT_FCALL                                               'round'
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                         $3      
         10        SEND_VAR                                                 $3
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
157.56 ms | 1394 KiB | 17 Q