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Negated word character class - \W
What is abbreviation of a negated character class of all word characters? Does it represents any characters except alphanumeric plus '_' characters?
How to write a regular expression using a character class abbreviation to capture all sequences of non word characters in a PHP script code like this: function get($key) {if (array_key_exists($key,$_POST)) return $_POST[$key]; else return "";}?
✍: FYIcenter.com
The predefined abbreviation of a negated character class of all word characters is \W, which is the same as [^0-9a-zA-Z_]. \W represents any characters except alphanumeric plus '_' characters.
The regular expression to capture all sequence of non word characters is:
(\W+)
\W+ - matches 1 or more non word characters
2013-01-23, 0👍, 0💬
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