3v4l.org

run code in 300+ PHP versions simultaneously
<?php $options = null; echo isset($options['search']) ? "yes" : "no"; echo !empty($options['search']) ? "yes" : "no"; echo "\n"; $options = ['search' => 0]; echo isset($options['search']) ? "yes" : "no"; echo !empty($options['search']) ? "yes" : "no"; echo "\n"; $options = ['search' => 1]; echo isset($options['search']) ? "yes" : "no"; echo !empty($options['search']) ? "yes" : "no";
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
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 = 18, Position 2 = 20
Branch analysis from position: 18
1 jumps found. (Code = 42) Position 1 = 21
Branch analysis from position: 21
2 jumps found. (Code = 43) Position 1 = 25, Position 2 = 27
Branch analysis from position: 25
1 jumps found. (Code = 42) Position 1 = 28
Branch analysis from position: 28
2 jumps found. (Code = 43) Position 1 = 33, Position 2 = 35
Branch analysis from position: 33
1 jumps found. (Code = 42) Position 1 = 36
Branch analysis from position: 36
2 jumps found. (Code = 43) Position 1 = 40, Position 2 = 42
Branch analysis from position: 40
1 jumps found. (Code = 42) Position 1 = 43
Branch analysis from position: 43
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 42
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 35
2 jumps found. (Code = 43) Position 1 = 40, Position 2 = 42
Branch analysis from position: 40
Branch analysis from position: 42
Branch analysis from position: 27
2 jumps found. (Code = 43) Position 1 = 33, Position 2 = 35
Branch analysis from position: 33
Branch analysis from position: 35
Branch analysis from position: 20
2 jumps found. (Code = 43) Position 1 = 25, Position 2 = 27
Branch analysis from position: 25
Branch analysis from position: 27
Branch analysis from position: 12
2 jumps found. (Code = 43) Position 1 = 18, Position 2 = 20
Branch analysis from position: 18
Branch analysis from position: 20
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 12
Branch analysis from position: 10
Branch analysis from position: 12
filename:       /in/racKH
function name:  (null)
number of ops:  45
compiled vars:  !0 = $options
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, null
    5     1        ISSET_ISEMPTY_DIM_OBJ                         0          !0, 'search'
          2      > JMPZ                                                     ~2, ->5
          3    >   QM_ASSIGN                                        ~3      'yes'
          4      > JMP                                                      ->6
          5    >   QM_ASSIGN                                        ~3      'no'
          6    >   ECHO                                                     ~3
    6     7        ISSET_ISEMPTY_DIM_OBJ                         1  ~4      !0, 'search'
          8        BOOL_NOT                                         ~5      ~4
          9      > JMPZ                                                     ~5, ->12
         10    >   QM_ASSIGN                                        ~6      'yes'
         11      > JMP                                                      ->13
         12    >   QM_ASSIGN                                        ~6      'no'
         13    >   ECHO                                                     ~6
    8    14        ECHO                                                     '%0A'
   10    15        ASSIGN                                                   !0, <array>
   12    16        ISSET_ISEMPTY_DIM_OBJ                         0          !0, 'search'
         17      > JMPZ                                                     ~8, ->20
         18    >   QM_ASSIGN                                        ~9      'yes'
         19      > JMP                                                      ->21
         20    >   QM_ASSIGN                                        ~9      'no'
         21    >   ECHO                                                     ~9
   13    22        ISSET_ISEMPTY_DIM_OBJ                         1  ~10     !0, 'search'
         23        BOOL_NOT                                         ~11     ~10
         24      > JMPZ                                                     ~11, ->27
         25    >   QM_ASSIGN                                        ~12     'yes'
         26      > JMP                                                      ->28
         27    >   QM_ASSIGN                                        ~12     'no'
         28    >   ECHO                                                     ~12
   15    29        ECHO                                                     '%0A'
   17    30        ASSIGN                                                   !0, <array>
   19    31        ISSET_ISEMPTY_DIM_OBJ                         0          !0, 'search'
         32      > JMPZ                                                     ~14, ->35
         33    >   QM_ASSIGN                                        ~15     'yes'
         34      > JMP                                                      ->36
         35    >   QM_ASSIGN                                        ~15     'no'
         36    >   ECHO                                                     ~15
   20    37        ISSET_ISEMPTY_DIM_OBJ                         1  ~16     !0, 'search'
         38        BOOL_NOT                                         ~17     ~16
         39      > JMPZ                                                     ~17, ->42
         40    >   QM_ASSIGN                                        ~18     'yes'
         41      > JMP                                                      ->43
         42    >   QM_ASSIGN                                        ~18     'no'
         43    >   ECHO                                                     ~18
         44      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
153.57 ms | 1390 KiB | 13 Q