3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=[1=>2,2=>3]; $b=[3=>1,6=>7,1=>3]; echo ($a < $b ? "a < b\n" : ""); echo ($a > $b ? "a > b\n" : ""); echo ($a == $b ? "a == b\n" : ""); echo ($a != $b ? "a != b\n" : ""); echo ($a < $b || $a >= $b ? "" : "a <> b\n"); if (version_compare(PHP_VERSION, "7.0", ">=")) { eval('echo "a <=> b is ", ($a <=> $b), "\n";'); } $c=[2=>3,1=>1]; $d=[6=>7,1=>2]; echo ($c < $d ? "c < d\n" : ""); echo ($c > $d ? "c > d\n" : ""); echo ($c == $d ? "c == d\n" : ""); echo ($c != $d ? "c != d\n" : ""); echo ($c < $d || $c >= $d ? "" : "c <> d\n"); if (version_compare(PHP_VERSION, "7.0", ">=")) { eval('echo "c <=> d is ", ($c <=> $d), "\n";'); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 6
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 7
Branch analysis from position: 7
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 12
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 13
Branch analysis from position: 13
2 jumps found. (Code = 43) Position 1 = 16, Position 2 = 18
Branch analysis from position: 16
1 jumps found. (Code = 42) Position 1 = 19
Branch analysis from position: 19
2 jumps found. (Code = 43) Position 1 = 22, Position 2 = 24
Branch analysis from position: 22
1 jumps found. (Code = 42) Position 1 = 25
Branch analysis from position: 25
2 jumps found. (Code = 47) Position 1 = 28, Position 2 = 30
Branch analysis from position: 28
2 jumps found. (Code = 43) Position 1 = 31, Position 2 = 33
Branch analysis from position: 31
1 jumps found. (Code = 42) Position 1 = 34
Branch analysis from position: 34
2 jumps found. (Code = 43) Position 1 = 41, Position 2 = 42
Branch analysis from position: 41
2 jumps found. (Code = 43) Position 1 = 46, Position 2 = 48
Branch analysis from position: 46
1 jumps found. (Code = 42) Position 1 = 49
Branch analysis from position: 49
2 jumps found. (Code = 43) Position 1 = 52, Position 2 = 54
Branch analysis from position: 52
1 jumps found. (Code = 42) Position 1 = 55
Branch analysis from position: 55
2 jumps found. (Code = 43) Position 1 = 58, Position 2 = 60
Branch analysis from position: 58
1 jumps found. (Code = 42) Position 1 = 61
Branch analysis from position: 61
2 jumps found. (Code = 43) Position 1 = 64, Position 2 = 66
Branch analysis from position: 64
1 jumps found. (Code = 42) Position 1 = 67
Branch analysis from position: 67
2 jumps found. (Code = 47) Position 1 = 70, Position 2 = 72
Branch analysis from position: 70
2 jumps found. (Code = 43) Position 1 = 73, Position 2 = 75
Branch analysis from position: 73
1 jumps found. (Code = 42) Position 1 = 76
Branch analysis from position: 76
2 jumps found. (Code = 43) Position 1 = 83, Position 2 = 84
Branch analysis from position: 83
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 84
Branch analysis from position: 75
2 jumps found. (Code = 43) Position 1 = 83, Position 2 = 84
Branch analysis from position: 83
Branch analysis from position: 84
Branch analysis from position: 72
Branch analysis from position: 66
2 jumps found. (Code = 47) Position 1 = 70, Position 2 = 72
Branch analysis from position: 70
Branch analysis from position: 72
Branch analysis from position: 60
2 jumps found. (Code = 43) Position 1 = 64, Position 2 = 66
Branch analysis from position: 64
Branch analysis from position: 66
Branch analysis from position: 54
2 jumps found. (Code = 43) Position 1 = 58, Position 2 = 60
Branch analysis from position: 58
Branch analysis from position: 60
Branch analysis from position: 48
2 jumps found. (Code = 43) Position 1 = 52, Position 2 = 54
Branch analysis from position: 52
Branch analysis from position: 54
Branch analysis from position: 42
Branch analysis from position: 33
2 jumps found. (Code = 43) Position 1 = 41, Position 2 = 42
Branch analysis from position: 41
Branch analysis from position: 42
Branch analysis from position: 30
Branch analysis from position: 24
2 jumps found. (Code = 47) Position 1 = 28, Position 2 = 30
Branch analysis from position: 28
Branch analysis from position: 30
Branch analysis from position: 18
2 jumps found. (Code = 43) Position 1 = 22, Position 2 = 24
Branch analysis from position: 22
Branch analysis from position: 24
Branch analysis from position: 12
2 jumps found. (Code = 43) Position 1 = 16, Position 2 = 18
Branch analysis from position: 16
Branch analysis from position: 18
Branch analysis from position: 6
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 12
Branch analysis from position: 10
Branch analysis from position: 12
filename:       /in/u8D34
function name:  (null)
number of ops:  85
compiled vars:  !0 = $a, !1 = $b, !2 = $c, !3 = $d
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, <array>
    5     2        IS_SMALLER                                               !0, !1
          3      > JMPZ                                                     ~6, ->6
          4    >   QM_ASSIGN                                        ~7      'a+%3C+b%0A'
          5      > JMP                                                      ->7
          6    >   QM_ASSIGN                                        ~7      ''
          7    >   ECHO                                                     ~7
    6     8        IS_SMALLER                                               !1, !0
          9      > JMPZ                                                     ~8, ->12
         10    >   QM_ASSIGN                                        ~9      'a+%3E+b%0A'
         11      > JMP                                                      ->13
         12    >   QM_ASSIGN                                        ~9      ''
         13    >   ECHO                                                     ~9
    7    14        IS_EQUAL                                                 !0, !1
         15      > JMPZ                                                     ~10, ->18
         16    >   QM_ASSIGN                                        ~11     'a+%3D%3D+b%0A'
         17      > JMP                                                      ->19
         18    >   QM_ASSIGN                                        ~11     ''
         19    >   ECHO                                                     ~11
    8    20        IS_NOT_EQUAL                                             !0, !1
         21      > JMPZ                                                     ~12, ->24
         22    >   QM_ASSIGN                                        ~13     'a+%21%3D+b%0A'
         23      > JMP                                                      ->25
         24    >   QM_ASSIGN                                        ~13     ''
         25    >   ECHO                                                     ~13
    9    26        IS_SMALLER                                       ~14     !0, !1
         27      > JMPNZ_EX                                         ~14     ~14, ->30
         28    >   IS_SMALLER_OR_EQUAL                              ~15     !1, !0
         29        BOOL                                             ~14     ~15
         30    > > JMPZ                                                     ~14, ->33
         31    >   QM_ASSIGN                                        ~16     ''
         32      > JMP                                                      ->34
         33    >   QM_ASSIGN                                        ~16     'a+%3C%3E+b%0A'
         34    >   ECHO                                                     ~16
   10    35        INIT_FCALL                                               'version_compare'
         36        SEND_VAL                                                 '8.0.0'
         37        SEND_VAL                                                 '7.0'
         38        SEND_VAL                                                 '%3E%3D'
         39        DO_ICALL                                         $17     
         40      > JMPZ                                                     $17, ->42
   11    41    >   INCLUDE_OR_EVAL                                          'echo+%22a+%3C%3D%3E+b+is+%22%2C+%28%24a+%3C%3D%3E+%24b%29%2C+%22%5Cn%22%3B', EVAL
   14    42    >   ASSIGN                                                   !2, <array>
   15    43        ASSIGN                                                   !3, <array>
   16    44        IS_SMALLER                                               !2, !3
         45      > JMPZ                                                     ~21, ->48
         46    >   QM_ASSIGN                                        ~22     'c+%3C+d%0A'
         47      > JMP                                                      ->49
         48    >   QM_ASSIGN                                        ~22     ''
         49    >   ECHO                                                     ~22
   17    50        IS_SMALLER                                               !3, !2
         51      > JMPZ                                                     ~23, ->54
         52    >   QM_ASSIGN                                        ~24     'c+%3E+d%0A'
         53      > JMP                                                      ->55
         54    >   QM_ASSIGN                                        ~24     ''
         55    >   ECHO                                                     ~24
   18    56        IS_EQUAL                                                 !2, !3
         57      > JMPZ                                                     ~25, ->60
         58    >   QM_ASSIGN                                        ~26     'c+%3D%3D+d%0A'
         59      > JMP                                                      ->61
         60    >   QM_ASSIGN                                        ~26     ''
         61    >   ECHO                                                     ~26
   19    62        IS_NOT_EQUAL                                             !2, !3
         63      > JMPZ                                                     ~27, ->66
         64    >   QM_ASSIGN                                        ~28     'c+%21%3D+d%0A'
         65      > JMP                                                      ->67
         66    >   QM_ASSIGN                                        ~28     ''
         67    >   ECHO                                                     ~28
   20    68        IS_SMALLER                                       ~29     !2, !3
         69      > JMPNZ_EX                                         ~29     ~29, ->72
         70    >   IS_SMALLER_OR_EQUAL                              ~30     !3, !2
         71        BOOL                                             ~29     ~30
         72    > > JMPZ                                                     ~29, ->75
         73    >   QM_ASSIGN                                        ~31     ''
         74      > JMP                                                      ->76
         75    >   QM_ASSIGN                                        ~31     'c+%3C%3E+d%0A'
         76    >   ECHO                                                     ~31
   21    77        INIT_FCALL                                               'version_compare'
         78        SEND_VAL                                                 '8.0.0'
         79        SEND_VAL                                                 '7.0'
         80        SEND_VAL                                                 '%3E%3D'
         81        DO_ICALL                                         $32     
         82      > JMPZ                                                     $32, ->84
   22    83    >   INCLUDE_OR_EVAL                                          'echo+%22c+%3C%3D%3E+d+is+%22%2C+%28%24c+%3C%3D%3E+%24d%29%2C+%22%5Cn%22%3B', EVAL
   23    84    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
173.84 ms | 1404 KiB | 15 Q