php filter non utf 8 characters

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Liam
08 Nov 2017
1function remove_bs($Str) {  
2  $StrArr = str_split($Str); $NewStr = '';
3  foreach ($StrArr as $Char) {    
4    $CharNo = ord($Char);
5    if ($CharNo == 163) { $NewStr .= $Char; continue; } // keep £ 
6    if ($CharNo > 31 && $CharNo < 127) {
7      $NewStr .= $Char;    
8    }
9  }  
10  return $NewStr;
11}
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