3v4l.org

run code in 300+ PHP versions simultaneously
<?php $value = 0; if(isset($value) && empty($value) != "") { echo "Field not required"; } else { echo "Field required"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 3, Position 2 = 6
Branch analysis from position: 3
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
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
filename:       /in/Ko3Yf
function name:  (null)
number of ops:  11
compiled vars:  !0 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 0
    4     1        ISSET_ISEMPTY_CV                                 ~2      !0
          2      > JMPZ_EX                                          ~2      ~2, ->6
          3    >   ISSET_ISEMPTY_CV                                 ~3      !0
          4        IS_NOT_EQUAL                                     ~4      ~3, ''
          5        BOOL                                             ~2      ~4
          6    > > JMPZ                                                     ~2, ->9
    6     7    >   ECHO                                                     'Field+not+required'
          8      > JMP                                                      ->10
   10     9    >   ECHO                                                     'Field+required'
   11    10    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
148.5 ms | 1393 KiB | 13 Q