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<?php $host = "localhost"; $port = 0; // oder false oder '' ... echo ($host . ($port)) ? ':' . $port : '';
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = 4, Position 2 = 7
Branch analysis from position: 4
Jump found. Position 1 = 8
Branch analysis from position: 8
Jump found. Position 1 = -2
Branch analysis from position: 7
Jump found. Position 1 = -2
filename:       /in/lk9Ul
function name:  (null)
number of ops:  10
compiled vars:  !0 = $host, !1 = $port
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   ASSIGN                                                   !0, 'localhost'
   4     1        ASSIGN                                                   !1, 0
   6     2        CONCAT                                           ~4      !0, !1
         3      > JMPZ                                                     ~4, ->7
         4    >   CONCAT                                           ~5      '%3A', !1
         5        QM_ASSIGN                                        ~6      ~5
         6      > JMP                                                      ->8
         7    >   QM_ASSIGN                                        ~6      ''
         8    >   ECHO                                                     ~6
         9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.2.0