3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo($a, $b, ...$rest) { echo 'a = '; var_dump($a); echo 'b = '; var_dump($b); echo 'rest = '; print_r($rest); echo "---------\n"; } $values = [42, 37, 23, 19]; foo(10, 20, 30, 40, 50); foo(10, 20); foo(10, 20, 30, ...$values); foo(10, ...$values); foo(...$values);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/BDjCh
function name:  (null)
number of ops:  29
compiled vars:  !0 = $values
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   ASSIGN                                                   !0, <array>
   16     1        INIT_FCALL                                               'foo'
          2        SEND_VAL                                                 10
          3        SEND_VAL                                                 20
          4        SEND_VAL                                                 30
          5        SEND_VAL                                                 40
          6        SEND_VAL                                                 50
          7        DO_FCALL                                      0          
   17     8        INIT_FCALL                                               'foo'
          9        SEND_VAL                                                 10
         10        SEND_VAL                                                 20
         11        DO_FCALL                                      0          
   18    12        INIT_FCALL                                               'foo'
         13        SEND_VAL                                                 10
         14        SEND_VAL                                                 20
         15        SEND_VAL                                                 30
         16        SEND_UNPACK                                              !0
         17        CHECK_UNDEF_ARGS                                         
         18        DO_FCALL                                      1          
   19    19        INIT_FCALL                                               'foo'
         20        SEND_VAL                                                 10
         21        SEND_UNPACK                                              !0
         22        CHECK_UNDEF_ARGS                                         
         23        DO_FCALL                                      1          
   20    24        INIT_FCALL                                               'foo'
         25        SEND_UNPACK                                              !0
         26        CHECK_UNDEF_ARGS                                         
         27        DO_FCALL                                      1          
         28      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/BDjCh
function name:  foo
number of ops:  17
compiled vars:  !0 = $a, !1 = $b, !2 = $rest
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        RECV_VARIADIC                                    !2      
    3     3        ECHO                                                     'a+%3D+'
    4     4        INIT_FCALL                                               'var_dump'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                                 
    6     7        ECHO                                                     'b+%3D+'
    7     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !1
         10        DO_ICALL                                                 
    9    11        ECHO                                                     'rest+%3D+'
   10    12        INIT_FCALL                                               'print_r'
         13        SEND_VAR                                                 !2
         14        DO_ICALL                                                 
   11    15        ECHO                                                     '---------%0A'
   12    16      > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
146.25 ms | 1403 KiB | 22 Q