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<?php echo "This is an interpolated $string";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OQjOX
function name:  (null)
number of ops:  4
compiled vars:  !0 = $string
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NOP                                                      
          1        FAST_CONCAT                                      ~1      'This+is+an+interpolated+', !0
          2        ECHO                                                     ~1
          3      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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