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<?php $string = 'love@outerbanks.org  '; $out = preg_match('/^\x{c2a0}*(.*)\x{c2a0}*$/u', ' ', $string); var_dump($out);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/6Kmvs
function name:  (null)
number of ops:  11
compiled vars:  !0 = $string, !1 = $out
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'love%40outerbanks.org%C2%A0%C2%A0'
    5     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%5E%5Cx%7Bc2a0%7D%2A%28.%2A%29%5Cx%7Bc2a0%7D%2A%24%2Fu'
          3        SEND_VAL                                                 '+'
          4        SEND_REF                                                 !0
          5        DO_ICALL                                         $3      
          6        ASSIGN                                                   !1, $3
    6     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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