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<html><body><h1>Regex Modifier: \S</h1><p>How many non-whitespace characters are in the text "W3Schools has been live since 1999"?:</p>$txt = "W3Schools has been live since 1999";$pattern = "/\S/";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: \S
How many non-whitespace characters are in the text "W3Schools has been live since 1999"?:
29The matches were found here:
######### ### #### #### ##### ####(Each match was replaced by a # character)