3v4l.org

run code in 300+ PHP versions simultaneously
<?php $d = 'foo'; switch ($d) { case 'bar': echo 'bar'; break; case 'foo' : echo 'yes'; break; case 'foo': echo 'no'; break; } echo 'hm';
Finding entry points
Branch analysis from position: 0
4 jumps found. (Code = 188) Position 1 = 9, Position 2 = 11, Position 3 = 15, Position 4 = 2
Branch analysis from position: 9
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
Branch analysis from position: 15
Branch analysis from position: 2
2 jumps found. (Code = 44) Position 1 = 4, Position 2 = 9
Branch analysis from position: 4
2 jumps found. (Code = 44) Position 1 = 6, Position 2 = 11
Branch analysis from position: 6
2 jumps found. (Code = 44) Position 1 = 8, Position 2 = 13
Branch analysis from position: 8
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
Branch analysis from position: 13
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
Branch analysis from position: 11
Branch analysis from position: 9
filename:       /in/gnNqd
function name:  (null)
number of ops:  17
compiled vars:  !0 = $d
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   ASSIGN                                                   !0, 'foo'
    7     1      > SWITCH_STRING                                            !0, [ 'bar':->9, 'foo':->11, ], ->15
    8     2    >   IS_EQUAL                                                 !0, 'bar'
          3      > JMPNZ                                                    ~2, ->9
   11     4    >   IS_EQUAL                                                 !0, 'foo'
          5      > JMPNZ                                                    ~2, ->11
   14     6    >   IS_EQUAL                                                 !0, 'foo'
          7      > JMPNZ                                                    ~2, ->13
          8    > > JMP                                                      ->15
    9     9    >   ECHO                                                     'bar'
   10    10      > JMP                                                      ->15
   12    11    >   ECHO                                                     'yes'
   13    12      > JMP                                                      ->15
   15    13    >   ECHO                                                     'no'
   16    14      > JMP                                                      ->15
   19    15    >   ECHO                                                     'hm'
         16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
157.17 ms | 1394 KiB | 13 Q