Regular Expressions 101

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Regular Expression
PCRE2 (PHP >=7.3)

(?<=\=).+?((?=\t)|(?=\n))

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Description

RegEX: (?<==).+?((?=\t)|(?=\n)) -- positive Lookbehind szuka znaku '=' na początku -- .+? -- zaznacza: . matches any character (except for line terminators) +? matches the previous token between one and unlimited times, as few times as possible, expanding as needed (lazy) -- positive Lookahead szuka znaku <tabulator: \t> | lub | <new_line: \n>

Submitted by Piotr Osada - 4 months ago

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Match URL Parameters with Optional Values

Match Floating Numbers with Optional Scientific Notation

Match Nested HTML Tags

Match Hexadecimal Color with Optional Alpha

Extract Non-Alpha Numeric Characters

Match Strings with Special Characters

Extract Domain Names with TLD

Match Version Numbers (e.g., 1.0.0, 2.3.4)

Match Hexadecimal Strings

Extract Mixed Content (Text and Numbers)

Match HTML Entities

Match Complex Strings with Nested Patterns

Match IP Address with Subnet

Match Currency Amount with Optional Symbols

Match Social Security Numbers (US)

Match Valid Email Addresses with Local Part Length

Match Specific Year Format (YYYY)

Match String with Limited Length

Extract All Matches from a Text

Match Postal Codes (US Format)

Community Library Entry

Regular ExpressionPCRE2 (PHP >=7.3)

Description

Regular Expression
PCRE2 (PHP >=7.3)