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<?php $string = 'And 7 should have value of £7.2'; $match = []; preg_match('/\W7\.2/', $string, $match); var_export($match);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/iU817
function name:  (null)
number of ops:  11
compiled vars:  !0 = $string, !1 = $match
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'And+7+should+have+value+of+%C2%A37.2'
    4     1        ASSIGN                                                   !1, <array>
    6     2        INIT_FCALL                                               'preg_match'
          3        SEND_VAL                                                 '%2F%5CW7%5C.2%2F'
          4        SEND_VAR                                                 !0
          5        SEND_REF                                                 !1
          6        DO_ICALL                                                 
    8     7        INIT_FCALL                                               'var_export'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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