Usado para captar tudo que está dentro de chave [ ]

ZIP Code validator

to validate phone number

Database data type determination and extraction. Example: varchar(20) varchar2(20) number(20,3) timestamp...

In an HTML will replace all auto-closed tags (/>) with a proper tag closing. It works even if the tag has a closing sign (>) inside an attribute.

Разделитель типа улицы и наименования улицы

Matches a sequence of 2 or more uppercase letters not surrounded by parenthesis.

Regular expression for IP v4 string. ^((25[0-5]|2[0-4]\d|1\d{2}|\d{1,2})\.){3}(25[0-5]|2[0-4]\d|1\d{2}|\d{1,2})$

1. Type = xhr Response Headers access-control-allow-headers DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range,X-DEVICE-TOKEN,deviceToken,agent access-control-allow-methods access-control-allow-origin...

Rows that could be considered numeric format data in SAS

\w

Select emails from a string

Matches on IPv4 addresses and groups each octet.

Matches on whole IP addresses

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

Matches and groups categories of semantic versions.

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

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

Sin espacio al inicio o fin, sin caracteres especiales

Solo se admiten numeros, sin espacios al inicio o fin