3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = "yes"; switch ($data) { case "no": case "false": case "0": case false: case 0: $r = "No"; break; case "": $r = ""; break; case "yes": case "true": case "1": case 1: case true: $r = "Yes"; break; default: $r = "Yes"; break; } var_dump($r);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 44) Position 1 = 3, Position 2 = 24
Branch analysis from position: 3
2 jumps found. (Code = 44) Position 1 = 5, Position 2 = 24
Branch analysis from position: 5
2 jumps found. (Code = 44) Position 1 = 7, Position 2 = 24
Branch analysis from position: 7
2 jumps found. (Code = 44) Position 1 = 9, Position 2 = 24
Branch analysis from position: 9
2 jumps found. (Code = 44) Position 1 = 11, Position 2 = 24
Branch analysis from position: 11
2 jumps found. (Code = 44) Position 1 = 13, Position 2 = 26
Branch analysis from position: 13
2 jumps found. (Code = 44) Position 1 = 15, Position 2 = 28
Branch analysis from position: 15
2 jumps found. (Code = 44) Position 1 = 17, Position 2 = 28
Branch analysis from position: 17
2 jumps found. (Code = 44) Position 1 = 19, Position 2 = 28
Branch analysis from position: 19
2 jumps found. (Code = 44) Position 1 = 21, Position 2 = 28
Branch analysis from position: 21
2 jumps found. (Code = 44) Position 1 = 23, Position 2 = 28
Branch analysis from position: 23
1 jumps found. (Code = 42) Position 1 = 30
Branch analysis from position: 30
1 jumps found. (Code = 42) Position 1 = 32
Branch analysis from position: 32
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 28
1 jumps found. (Code = 42) Position 1 = 32
Branch analysis from position: 32
Branch analysis from position: 28
Branch analysis from position: 28
Branch analysis from position: 28
Branch analysis from position: 28
Branch analysis from position: 26
1 jumps found. (Code = 42) Position 1 = 32
Branch analysis from position: 32
Branch analysis from position: 24
1 jumps found. (Code = 42) Position 1 = 32
Branch analysis from position: 32
Branch analysis from position: 24
Branch analysis from position: 24
Branch analysis from position: 24
Branch analysis from position: 24
filename:       /in/ac1JC
function name:  (null)
number of ops:  36
compiled vars:  !0 = $data, !1 = $r
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'yes'
    6     1        IS_EQUAL                                                 !0, 'no'
          2      > JMPNZ                                                    ~3, ->24
    7     3    >   IS_EQUAL                                                 !0, 'false'
          4      > JMPNZ                                                    ~3, ->24
    8     5    >   IS_EQUAL                                                 !0, '0'
          6      > JMPNZ                                                    ~3, ->24
    9     7    >   IS_EQUAL                                                 !0, <false>
          8      > JMPNZ                                                    ~3, ->24
   10     9    >   IS_EQUAL                                                 !0, 0
         10      > JMPNZ                                                    ~3, ->24
   13    11    >   IS_EQUAL                                                 !0, ''
         12      > JMPNZ                                                    ~3, ->26
   16    13    >   IS_EQUAL                                                 !0, 'yes'
         14      > JMPNZ                                                    ~3, ->28
   17    15    >   IS_EQUAL                                                 !0, 'true'
         16      > JMPNZ                                                    ~3, ->28
   18    17    >   IS_EQUAL                                                 !0, '1'
         18      > JMPNZ                                                    ~3, ->28
   19    19    >   IS_EQUAL                                                 !0, 1
         20      > JMPNZ                                                    ~3, ->28
   20    21    >   IS_EQUAL                                                 !0, <true>
         22      > JMPNZ                                                    ~3, ->28
         23    > > JMP                                                      ->30
   11    24    >   ASSIGN                                                   !1, 'No'
   12    25      > JMP                                                      ->32
   14    26    >   ASSIGN                                                   !1, ''
   15    27      > JMP                                                      ->32
   21    28    >   ASSIGN                                                   !1, 'Yes'
   22    29      > JMP                                                      ->32
   24    30    >   ASSIGN                                                   !1, 'Yes'
   25    31      > JMP                                                      ->32
   27    32    >   INIT_FCALL                                               'var_dump'
         33        SEND_VAR                                                 !1
         34        DO_ICALL                                                 
         35      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
148.78 ms | 1405 KiB | 15 Q