3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x =array( array(), "", 0, false, null ); foreach ($x as $val) { if (!$val) { print "The condition is unexpectedly true, though it's not a boolean and was magically converted\n"; } }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 7
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 7
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 6
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 6
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
filename:       /in/tn8vq
function name:  (null)
number of ops:  9
compiled vars:  !0 = $x, !1 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   11     1      > FE_RESET_R                                       $3      !0, ->7
          2    > > FE_FETCH_R                                               $3, !1, ->7
   12     3    >   BOOL_NOT                                         ~4      !1
          4      > JMPZ                                                     ~4, ->6
   13     5    >   ECHO                                                     'The+condition+is+unexpectedly+true%2C+though+it%27s+not+a+boolean+and+was+magically+converted%0A'
   11     6    > > JMP                                                      ->2
          7    >   FE_FREE                                                  $3
   15     8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
166.29 ms | 1393 KiB | 13 Q