Smart curly quotes are the bane of my life and they most commonly cause grieve when users cut and paste from Microsoft Word into a web form and you end up with the funny box shapes.

This code was on and I’ve just added it to a function.

function cleanCurlies($string){
 $string = str_replace(array("\xe2\x80\x98", "\xe2\x80\x99", "\xe2\x80\x9c", "\xe2\x80\x9d", "\xe2\x80\x93", "\xe2\x80\x94", "\xe2\x80\xa6"), array("'", "'", '"', '"', '-', '--', '...'), $string);
 // Next, replace their Windows-1252 equivalents.
 $string = str_replace(array(chr(145), chr(146), chr(147), chr(148), chr(150), chr(151), chr(133)), array("'", "'", '"', '"', '-', '--', '...'), $string);
 return $string;

Original found here:

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