3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = null; if (!is_array($a)) {}
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 4
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
filename:       /in/XuOvd
function name:  (null)
number of ops:  5
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, null
    4     1        TYPE_CHECK                                  128  ~2      !0
          2        BOOL_NOT                                         ~3      ~2
          3      > JMPZ                                                     ~3, ->4
          4    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
148.83 ms | 1395 KiB | 13 Q