Regular Expressions 101

Community Patterns

1

amp;

PCRE2 (PHP >=7.3)
subtitui
Submitted by seidao - 6 days ago
1

números html

PCRE2 (PHP >=7.3)
numeros
Submitted by anonymous - 9 days ago
1

select report

PCRE2 (PHP >=7.3)
select report
Submitted by H.Nasirii - 9 days ago
1

One letter in row

PCRE2 (PHP >=7.3)
([a-z])(?!.*\1)
Submitted by anonymous - 14 days ago

URL Validation

0

Regular Expression
.NET (C#)

@"
^(?=(?<http>(?:https?:\/\/){1}(?:www\.)?)?)(?(?=\k<http>?(?<ipaddr>(?:\d{1,3}\.){3}\d{1,3}(?:\:\d{1,5})?))\k<http>?\k<ipaddr>(?:\.[\w]{1,9})?|\k<http>(?:[\w]\.?){1,255}\.[\w]{1,9})(?:\/.*)?$
"
gm

Description

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Submitted by anonymous - 3 months ago