regex101: PCRE2 (PHP) Match Workspace

Pro

Non-Capturing Group(?:^|(?<=[\D;a-zA-Z(),.:;?!"'`>]))

1st Alternative^

^start of line

2nd Alternative(?<=[\D;a-zA-Z(),.:;?!"'`>])

Positive Lookbehind(?<=[\D;a-zA-Z(),.:;?!"'`>])

Character Class[\D;a-zA-Z(),.:;?!"'`>]

\Dany character that's not a digit

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

a-zone character from a (97₁₀) to z (122₁₀) (case insensitive)

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

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

`the literal ` (96₁₀ / 140₈ / 60₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Negative Lookahead(?!000|666|9)

1st Alternative000

000the literal text 000

2nd Alternative666

666the literal text 666

3rd Alternative9

9the literal 9 (57₁₀ / 71₈ / 39₁₆)

Negative Lookbehind(?<![Oo][Rr][Dd][Ee][Rr].)

Character Class[Oo]

Othe literal O (79₁₀ / 117₈ / 4F₁₆) (case insensitive)

othe literal o (111₁₀ / 157₈ / 6F₁₆) (case insensitive)

Character Class[Rr]

Rthe literal R (82₁₀ / 122₈ / 52₁₆) (case insensitive)

rthe literal r (114₁₀ / 162₈ / 72₁₆) (case insensitive)

Character Class[Dd]

Dthe literal D (68₁₀ / 104₈ / 44₁₆) (case insensitive)

dthe literal d (100₁₀ / 144₈ / 64₁₆) (case insensitive)

Character Class[Ee]

Ethe literal E (69₁₀ / 105₈ / 45₁₆) (case insensitive)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case insensitive)

Character Class[Rr]

Rthe literal R (82₁₀ / 122₈ / 52₁₆) (case insensitive)

rthe literal r (114₁₀ / 162₈ / 72₁₆) (case insensitive)

.any character (except for line terminators)

Negative Lookbehind(?<![Oo][Rr][Dd][Ee][Rr]..)

Character Class[Oo]

Othe literal O (79₁₀ / 117₈ / 4F₁₆) (case insensitive)

othe literal o (111₁₀ / 157₈ / 6F₁₆) (case insensitive)

Character Class[Rr]

Rthe literal R (82₁₀ / 122₈ / 52₁₆) (case insensitive)

rthe literal r (114₁₀ / 162₈ / 72₁₆) (case insensitive)

Character Class[Dd]

Dthe literal D (68₁₀ / 104₈ / 44₁₆) (case insensitive)

dthe literal d (100₁₀ / 144₈ / 64₁₆) (case insensitive)

Character Class[Ee]

Ethe literal E (69₁₀ / 105₈ / 45₁₆) (case insensitive)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case insensitive)

Character Class[Rr]

Rthe literal R (82₁₀ / 122₈ / 52₁₆) (case insensitive)

rthe literal r (114₁₀ / 162₈ / 72₁₆) (case insensitive)

.any character (except for line terminators)

Negative Lookbehind(?<![Oo][Rr][Dd][Ee][Rr]...)

Character Class[Oo]

Othe literal O (79₁₀ / 117₈ / 4F₁₆) (case insensitive)

othe literal o (111₁₀ / 157₈ / 6F₁₆) (case insensitive)

Character Class[Rr]

Rthe literal R (82₁₀ / 122₈ / 52₁₆) (case insensitive)

rthe literal r (114₁₀ / 162₈ / 72₁₆) (case insensitive)

Character Class[Dd]

Dthe literal D (68₁₀ / 104₈ / 44₁₆) (case insensitive)

dthe literal d (100₁₀ / 144₈ / 64₁₆) (case insensitive)

Character Class[Ee]

Character Class[Rr]

.any character (except for line terminators)

Negative Lookbehind(?<![Oo][Rr][Dd][Ee][Rr].[Nn][Uu][Mm][Bb][Ee][Rr].)

Negative Lookbehind(?<![Oo][Rr][Dd][Ee][Rr].[Nn][Uu][Mm][Bb][Ee][Rr]..)

Negative Lookbehind(?<![Oo][Rr][Dd][Ee][Rr].[Nn][Uu][Mm][Bb][Ee][Rr]...)

Negative Lookbehind(?<![Xx])

\d{3}a digit, repeated exactly 3 times

Character Class[ -.=\n\r]{0,10}

Negative Lookahead(?!00)

\d{2}a digit, repeated exactly 2 times

Character Class[ -.=\n\r]{0,10}

Negative Lookahead(?!0000)

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

Non-Capturing Group(?:$|(?=[\Da-zA-Z(),.:;?!"'`<= ]))

Global pattern flags

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

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

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

(?:^|(?<=[\D;a-zA-Z(),.:;?!"'`>]))(?!000|666|9)(?<![Oo][Rr][Dd][Ee][Rr].)(?<![Oo][Rr][Dd][Ee][Rr]..)(?<![Oo][Rr][Dd][Ee][Rr]...)(?<![Oo][Rr][Dd][Ee][Rr].[Nn][Uu][Mm][Bb][Ee][Rr].)(?<![Oo][Rr][Dd][Ee][Rr].[Nn][Uu][Mm][Bb][Ee][Rr]..)(?<![Oo][Rr][Dd][Ee][Rr].[Nn][Uu][Mm][Bb][Ee][Rr]...)(?<![Xx])\d{3}[ -.=\n\r]{0,10}(?!00)\d{2}[ -.=\n\r]{0,10}(?!0000)\d{4}(?:$|(?=[\Da-zA-Z(),.:;?!"'`<= ]))

New

Order numbers should not get detected if 'X or x' precedes the number. so this is working fine.
x123456789
X123456789
x123-456-789
X123-456-789
123-456-789


Need to modify the regex pattern to get the match for the list of ordernumbers written like below...along with the word (order number) should be case insensitive. 

ordernumber123-456-789
order number123-456789
order number 123456789
123-456789
123456789
ordernumber-123456787
ordernumber - 123456789
ordernumber #123456789
ordernumber *anysplcharacter*123456789

Substitution

Order numbers should not get detected if 'X or x' precedes the number. so this is working fine.
x123456789
X123456789
x123-456-789
X123-456-789
123-456-789


Need to modify the regex pattern to get the match for the list of ordernumbers written like below...along with the word (order number) should be case insensitive. 

ordernumber123-456-789
order number123-456789
order number 123456789
123-456789
123456789
ordernumber-123456787
ordernumber - 123456789
ordernumber #123456789
ordernumber *anysplcharacter*123456789