3v4l.org

run code in 500+ PHP versions simultaneously
<?php // different lengths = shorter wins consistently var_dump([0, 1] <=> [0, 1, 2]); var_dump([0, 1, 2] <=> [0, 1]); echo PHP_EOL; // same length + missing key = inconsistent var_dump([0 => 1] <=> [1 => 1]); var_dump([1 => 1] <=> [0 => 1]);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8tR9M
function name:  (null)
number of ops:  14
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    4     0  E >   INIT_FCALL                                                   'var_dump'
          1        SEND_VAL                                                     -1
          2        DO_ICALL                                                     
    5     3        INIT_FCALL                                                   'var_dump'
          4        SEND_VAL                                                     1
          5        DO_ICALL                                                     
    7     6        ECHO                                                         '%0A'
   10     7        INIT_FCALL                                                   'var_dump'
          8        SEND_VAL                                                     1
          9        DO_ICALL                                                     
   11    10        INIT_FCALL                                                   'var_dump'
         11        SEND_VAL                                                     1
         12        DO_ICALL                                                     
         13      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
129.54 ms | 476 KiB | 8 Q