Regular Expression
จาก Wiki2
- Good tutorial http://www.zytrax.com/tech/web/regex.htm
- Good demonstration http://gnosis.cx/publish/programming/regular_expressions.html
- Good Test tool http://www.spaweditor.com/scripts/regex/index.php
- Too comprehensive tutorial http://www.regular-expressions.info/tutorial.html
- test image file extension
- /\.(jpg|jpeg|png|JPG|JPEG|PNG|Jpg|Jpeg|Png)$/
- /^.*\.(jpg|jpeg|png|gif)$/i
