Regular Expressions 101

Pro

^start of string

a:the literal text a: (case insensitive)

\d+a digit, repeated at least once

:{the literal text :{

Group 1(i:\d+;a:\d+:{s:\d+:\"name\";s:\d+:\"[\w+\s+]+\";s:\d+:\"year\";i:\d{4};})+

+repeats the group contents below at least once:

i:the literal text i: (case insensitive)

\d+a digit, repeated at least once

;a:the literal text ;a: (case insensitive)

\d+a digit, repeated at least once

:{s:the literal text :{s: (case insensitive)

\d+a digit, repeated at least once

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\"the literal " (34₁₀ / 42₈ / 22₁₆)

namethe literal text name (case insensitive)

\"the literal " (34₁₀ / 42₈ / 22₁₆)

;s:the literal text ;s: (case insensitive)

\d+a digit, repeated at least once

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\"the literal " (34₁₀ / 42₈ / 22₁₆)

Character Class[\w+\s+]+

+matches at least one character from the set below:

\wany word character

+the literal + (43₁₀ / 53₈ / 2B₁₆)

\sany whitespace character

+the literal + (43₁₀ / 53₈ / 2B₁₆)

\"the literal " (34₁₀ / 42₈ / 22₁₆)

;s:the literal text ;s: (case insensitive)

\d+a digit, repeated at least once

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\"the literal " (34₁₀ / 42₈ / 22₁₆)

yearthe literal text year (case insensitive)

\"the literal " (34₁₀ / 42₈ / 22₁₆)

;i:the literal text ;i: (case insensitive)

\d{4}a digit, repeated exactly 4 times

;}the literal text ;}

}the literal } (125₁₀ / 175₈ / 7D₁₆)

$end of string, or before its final line terminator

Global pattern flags

x modifier: extended. Ignores unescaped whitespace and comments outside character classes

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

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25 tokens

^a:\d+:{(i:\d+;a:\d+:{s:\d+:\"name\";s:\d+:\"[\w+\s+]+\";s:\d+:\"year\";i:\d{4};})+}$

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