Welbog questions

Welbog answers

• Sum different row in column based on second column value
• Testing with multiple regexps at the same time (for use in syntactic analysis)
• A regular expression that will allow a string with only one Capital Letter
• How to create an XML file from MySQL Data queries?
• PHP PREG Regex: What does "\W" mean when using the UTF-8 modifier?
• Top techniques to avoid 'data scraping' from a website database
• Select Where Count() of multiple columns is greater than one
• What is the difference between (a+b)* and (a*b*)*?
• MySQL: count grouped items?
• Rewrite css/js paths