Developers Heaven Forum
Web Programming => PHP & Perl => Topic started by: admin on August 22, 2009, 04:41:18 PM
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$pattern = "/[^\d\w\s]/";
$replacement = "*";
$subject = "1 Main str, #5";
echo preg_replace($pattern, $replacement, $subject);
The ^ symbol negate a class. Right after this symbol we put the classes:
\d - digits
\w - words
\s - space
So, it reads as: "replace with * all the symbols from $subject, which are not digits, words and spaces".