3v4l.org

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

Generated using Vulcan Logic Dumper, using php 8.0.0


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149.94 ms | 1394 KiB | 13 Q