3v4l.org

run code in 500+ PHP versions simultaneously
<?php class Test { function n($n, $return_method = false) { if ($return_method) return __FUNCTION__; return "N is $n"; } } $test = new Test; $method = $test->n(5, true); print $method . PHP_EOL; print $test->$method(5) . PHP_EOL;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/X42fU
function name:  (null)
number of ops:  16
compiled vars:  !0 = $test, !1 = $method
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   10     0  E >   NEW                                                  $2      'Test'
          1        DO_FCALL                                          0          
          2        ASSIGN                                                       !0, $2
   11     3        INIT_METHOD_CALL                                             !0, 'n'
          4        SEND_VAL_EX                                                  5
          5        SEND_VAL_EX                                                  <true>
          6        DO_FCALL                                          0  $5      
          7        ASSIGN                                                       !1, $5
   12     8        CONCAT                                               ~7      !1, '%0A'
          9        ECHO                                                         ~7
   13    10        INIT_METHOD_CALL                                             !0, !1
         11        SEND_VAL_EX                                                  5
         12        DO_FCALL                                          0  $8      
         13        CONCAT                                               ~9      $8, '%0A'
         14        ECHO                                                         ~9
   14    15      > RETURN                                                       1

Class Test:
Function n:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 4
Branch analysis from position: 3
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/X42fU
function name:  n
number of ops:  8
compiled vars:  !0 = $n, !1 = $return_method
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    4     0  E >   RECV                                                 !0      
          1        RECV_INIT                                            !1      <false>
    5     2      > JMPZ                                                         !1, ->4
    6     3    > > RETURN                                                       'n'
    7     4    >   NOP                                                          
          5        FAST_CONCAT                                          ~2      'N+is+', !0
          6      > RETURN                                                       ~2
    8     7*     > RETURN                                                       null

End of function n

End of class Test.

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
126.32 ms | 475 KiB | 7 Q