Find a bunch of different types of email with this RegEx

/^1-9{3} ?(?!sa|sd|ss)[a-z]{2}$/i

Suitable for countries with a combination of

Detects hiragana, katakana, kanji and japanese alphabet

This regex is a mashup that strips protocol, domain and URI into seperate capture groups.

Akamai Logs

Returns matches of parameter and value separately from a URL. Ignores anything after a #.

Use this to find wich mods (in Minecraft, Forge) errored out in the Crashlog

Will extract URLs from text string if they have a space or line ending at the end and are not wrapped inside a string delimiter

as title

It should match the Media, Crop, ... boxes

Get the body of a specific cookie from an HTTP header.

Parse SQLALCHEMY_DATABASE_URI

The official expression used for variable names, class names, etc. From http://www.php.net/manual/en/language.variables.basics.php