Regular Expressions 101

Validate IPv4 addresses using PCRE's recursion patterns.

Find an specific TAG and return his content

Find Html TAG with "Italic" class and returns his content.

Extracts the culture name from a javascript file. Works with minified and non minified files.

cisco

teste

Valiate israel phone number

Get an specific tag and return his content

Example: Home page | {$site_name|to_small}

"Lazy" operator overload regular expression: += and likes are left out because + and like matches anyway.