3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Set counter $i = 0; // Increase counter within the scope // of the function $closure = function () use ($i){ $i++; }; // Run the function $closure(); // The global count hasn't changed echo $i; // Returns 0 ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/V6U06
function name:  (null)
number of ops:  8
compiled vars:  !0 = $i, !1 = $closure
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 0
    6     1        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FV6U06%3A6%240'
          2        BIND_LEXICAL                                             ~3, !0
          3        ASSIGN                                                   !1, ~3
    8     4        INIT_DYNAMIC_CALL                                        !1
          5        DO_FCALL                                      0          
   10     6        ECHO                                                     !0
   11     7      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FV6U06%3A6%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/V6U06
function name:  {closure}
number of ops:  3
compiled vars:  !0 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   BIND_STATIC                                              !0
          1        PRE_INC                                                  !0
          2      > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FV6U06%3A6%240

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
161.09 ms | 1392 KiB | 13 Q