regex101: PCRE2 (PHP) Match Workspace

Pro

^start of line

Group 1([A-Z0-9]{3}[WTL])

Character Class[A-Z0-9]{3}

{3}matches exactly 3 characters from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Character Class[WTL]

Wthe literal W (87₁₀ / 127₈ / 57₁₆) (case sensitive)

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

Lthe literal L (76₁₀ / 114₈ / 4C₁₆) (case sensitive)

Group 2(TB)?+

?+repeats the group contents below at most once:

TBthe literal text TB (case sensitive)

Negative Lookahead(?!LG)

LGthe literal text LG (case sensitive)

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

25 tokens

Regular Expression

^([A-Z0-9]{3}[WTL])(TB)?+(?!LG)

New

Should capture

ABCWTB|12345
ABCLTB|12345
FGHT|12345
AAAW|12345
B2BL|12345
XYZTTB|345345
Should not capture anything (these work)

ABCLLG12345
FGHTLG12345
X2ZWLG12345
Should not capture anything (these don't work)

ABCWTBLG12345
XYZTTBLG345345
F2HLTBLG345345

Extraction

Should capture

ABCWTB|12345
ABCLTB|12345
FGHT|12345
AAAW|12345
B2BL|12345
XYZTTB|345345
Should not capture anything (these work)

ABCLLG12345
FGHTLG12345
X2ZWLG12345
Should not capture anything (these don't work)

ABCWTBLG12345
XYZTTBLG345345
F2HLTBLG345345