3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "foo {$_SERVER['PHP_SELF']}";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/07Y89
function name:  (null)
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NOP                                                      
          1        FETCH_R                      global              ~0      '_SERVER'
          2        FETCH_DIM_R                                      ~1      ~0, 'PHP_SELF'
          3        FAST_CONCAT                                      ~2      'foo+', ~1
          4        ECHO                                                     ~2
          5      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
151.45 ms | 1392 KiB | 13 Q