regex101: PCRE2 (PHP) Match Workspace

^start of line

Group timestamp(?<timestamp>\d+-\d+-\d+T\d+:\d+:\d+\.\d+([+-])\d+:\d+)

\d+a digit, repeated at least once

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

Tthe literal T (84₁₀ / 124₈ / 54₁₆) (case sensitive)

\d+a digit, repeated at least once

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\d+a digit, repeated at least once

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\d+a digit, repeated at least once

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

Group 2([+-])

Character Class[+-]

+the literal + (43₁₀ / 53₈ / 2B₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\d+a digit, repeated at least once

\s+any whitespace character, repeated at least once

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Group severity(?<severity>\w+)

\w+any word character, repeated at least once

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Group message(?<message>.*(?:\n(?!\d+-\d+-\d+T).*)*)

.*any character (except for line terminators), repeated any number of times

Non-Capturing Group(?:\n(?!\d+-\d+-\d+T).*)*

*repeats the group contents below any number of times:

\na line-feed (newline) character (ASCII 10)

Negative Lookahead(?!\d+-\d+-\d+T)

\d+a digit, repeated at least once

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

Tthe literal T (84₁₀ / 124₈ / 54₁₆) (case sensitive)

.*any character (except for line terminators), repeated any number of times

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Search reference

Regular Expression

^(?<timestamp>\d+-\d+-\d+T\d+:\d+:\d+\.\d+([+-])\d+:\d+)\s+\[(?<severity>\w+)\](?<message>.*(?:\n(?!\d+-\d+-\d+T).*)*)$

Test String
New

2022-06-27T15:22:35.506+00:00 [Info] MSAT starting with 60000 tick ...
2022-06-27T15:22:35.506+00:00 [Info] pram[:9999] starting ...
2022-06-27T15:22:35.508+00:00 [Info] New settings received: 
{"indexer.settings.compaction.days_of_week":"Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday","indexer.settings.compaction.interval":"00:00,00:00","indexer.settings.compaction.compaction_mode":"circular","indexer.settings.log_level":"info","indexer.settings.persisted_snapshot.interval":5000,"indexer.settings.compaction.min_frag":30,"indexer.settings.inmemory_snapshot.interval":200,"indexer.settings.max_cpu_percent":0,"indexer.settings.storage_mode":"forestdb","indexer.settings.recovery.max_rollbacks":5,"indexer.settings.memory_quota":1073741824,"indexer.settings.compaction.abort_exceed_interval":false}
2022-06-27T15:22:35.508+00:00 [Info] PROJ[:9999] settings notifier from metakv

Regular Expressions 101

Regular Expression

Test String
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Substitution
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Regular Expression

Test StringNew

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Test String
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