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<?php $var = null; if ( !$var ) { echo 'without is_null() |'; } if ( is_null($var) ) { echo 'with is_null()'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 4
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 7
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
Branch analysis from position: 4
filename:       /in/u0qlm
function name:  (null)
number of ops:  8
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, null
    5     1        BOOL_NOT                                         ~2      !0
          2      > JMPZ                                                     ~2, ->4
    6     3    >   ECHO                                                     'without+is_null%28%29+%7C'
    9     4    >   TYPE_CHECK                                    2          !0
          5      > JMPZ                                                     ~3, ->7
   10     6    >   ECHO                                                     'with+is_null%28%29'
   11     7    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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