stackoverflow.com/questions/14177170/php-string-to-array-che...

I'm working on a custom spell checker (and learning as I go) that needs to do the following upon form submission:

1. Convert the string submitted from textarea into an array of words.
2. Search for each word in the array in the mysql ...
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regexr.com

Online expression builder for RegEX to help writing htaccess and other programming stuff.

www.toolsvoid.com

Toolsvoid is a free online service that offer various and useful tools for webmasters, security researchers and system administrators. We have a vast range of network tools, string manipulation tools, hashing tools and regex tools. You don't have to re ...

tools.devshed.com

Webmaster Tools, Developer Tools, Programming Tools. There are a lot useful tools here.

• Base64 Encoding
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• Datetime Converter
• DHTML Tooltip
...
Category:Tools
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www.regexlib.com

Regular Expression Library provides a searchable database of regular expressions.  Users can add, edit, rate, and test regular expressions.

lzone.de

Cheat sheets in the following topics:

• Linux Sysadmin
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• Code Examples

The 'Code Examples' section is not overly large but t ...