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<html><body><h1>Regex Modifier: \W</h1><p>How many non-alphatbetical and non-digit characters are in the text "W3Schools.com"?:</p>$txt = "W3Schools.com";$pattern = "/\W/";echo preg_match_all($pattern, $txt); <p>The matches were found here:</p>echo preg_replace($pattern, "#", $txt); <p>(Each match was replaced by a # character)</p></body></html>Regex Modifier: \W
How many non-alphatbetical and non-digit characters are in the text "W3Schools.com"?:
1The matches were found here:
W3Schools#com(Each match was replaced by a # character)