collect information from web links

Searches the string for valid URLs. Includes HTTP, HTTPS, and localhost with it's port.

RFC Compliant Email Address (https://datatracker.ietf.org/doc/html/rfc2822)

Solo se admiten numeros, sin espacios al inicio o fin

Sin espacio al inicio o fin, sin caracteres especiales

For internal use

For internal use

"1.2.3" Group 1: 1 Group 2: 2 Group 3: 3

Match all emojis using unicode

Write a program, which matches a date in the format "dd{separator}MMM{separator}yyyy". Use capturing groups in your regular expression.

A regex for finding a Bulgarian phone. A Softuni task

/preg_replace('!\s+!', ' ', $s)/gm

get facebook page id from html response

sure that can be more shortly, but well... and a newbie

jsonmultikey

'^Subject:.\s((=?^.[?=$]).*)'

Matches and groups categories of semantic versions.

Matches on version syntax, grouping the Major version alone, Minor-Patch, and Label alone.

Matches on whole IP addresses

Matches on IPv4 addresses and groups each octet.