3v4l.org

run code in 300+ PHP versions simultaneously
<?php $uploadZoneData[1]['size'] = 0; if ($uploadZoneData[1]['size'] != 0) { echo "true\n"; } else { echo "false\n"; } if (!empty($uploadZoneData[1])) { echo "true\n"; } else { echo "false\n"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 9
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
2 jumps found. (Code = 43) Position 1 = 13, Position 2 = 15
Branch analysis from position: 13
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: 15
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
2 jumps found. (Code = 43) Position 1 = 13, Position 2 = 15
Branch analysis from position: 13
Branch analysis from position: 15
filename:       /in/uedF2
function name:  (null)
number of ops:  17
compiled vars:  !0 = $uploadZoneData
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   FETCH_DIM_W                                      $1      !0, 1
          1        ASSIGN_DIM                                               $1, 'size'
          2        OP_DATA                                                  0
    4     3        FETCH_DIM_R                                      ~3      !0, 1
          4        FETCH_DIM_R                                      ~4      ~3, 'size'
          5        IS_NOT_EQUAL                                             ~4, 0
          6      > JMPZ                                                     ~5, ->9
    5     7    >   ECHO                                                     'true%0A'
    4     8      > JMP                                                      ->10
    7     9    >   ECHO                                                     'false%0A'
   11    10    >   ISSET_ISEMPTY_DIM_OBJ                         1  ~6      !0, 1
         11        BOOL_NOT                                         ~7      ~6
         12      > JMPZ                                                     ~7, ->15
   12    13    >   ECHO                                                     'true%0A'
   11    14      > JMP                                                      ->16
   14    15    >   ECHO                                                     'false%0A'
   15    16    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
135.77 ms | 996 KiB | 13 Q