3v4l.org

run code in 300+ PHP versions simultaneously
<?php function f($req, $opt = null, ...$params) { printf('$req: %d; $opt: %d; number of params: %d'."\n", $req, $opt, count($params)); } f(1, 'aa', 3, 4, 5,6,7,8,9,10,11,12,13); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/g5oio
function name:  (null)
number of ops:  16
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   INIT_FCALL                                               'f'
          1        SEND_VAL                                                 1
          2        SEND_VAL                                                 'aa'
          3        SEND_VAL                                                 3
          4        SEND_VAL                                                 4
          5        SEND_VAL                                                 5
          6        SEND_VAL                                                 6
          7        SEND_VAL                                                 7
          8        SEND_VAL                                                 8
          9        SEND_VAL                                                 9
         10        SEND_VAL                                                 10
         11        SEND_VAL                                                 11
         12        SEND_VAL                                                 12
         13        SEND_VAL                                                 13
         14        DO_FCALL                                      0          
    9    15      > RETURN                                                   1

Function f:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/g5oio
function name:  f
number of ops:  11
compiled vars:  !0 = $req, !1 = $opt, !2 = $params
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
          1        RECV_INIT                                        !1      null
          2        RECV_VARIADIC                                    !2      
    3     3        INIT_FCALL                                               'printf'
          4        SEND_VAL                                                 '%24req%3A+%25d%3B+%24opt%3A+%25d%3B+number+of+params%3A+%25d%0A'
    4     5        SEND_VAR                                                 !0
          6        SEND_VAR                                                 !1
          7        COUNT                                            ~3      !2
          8        SEND_VAL                                                 ~3
          9        DO_ICALL                                                 
    5    10      > RETURN                                                   null

End of function f

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
146.32 ms | 1397 KiB | 16 Q