regex101: PCRE2 (PHP) Match Workspace

^start of line

Positive Lookahead(?=[^A-Z\n]*[A-Z])

Negated Character Class[^A-Z\n]*

*matches any number of characters outside the set below:

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

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

Character Class[A-Z]

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

Positive Lookahead(?=[^a-z\n]*[a-z])

Negated Character Class[^a-z\n]*

*matches any number of characters outside the set below:

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

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

Character Class[a-z]

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

Positive Lookahead(?=[^\d\n]*\d)

Negated Character Class[^\d\n]*

*matches any number of characters outside the set below:

\da digit

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

\da digit

Positive Lookahead(?=[^-+*/%\n]*[-+*/%])

Negated Character Class[^-+*/%\n]*

*matches any number of characters outside the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

+the literal + (43₁₀ / 53₈ / 2B₁₆)

*the literal * (42₁₀ / 52₈ / 2A₁₆)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

%the literal % (37₁₀ / 45₈ / 25₁₆)

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

Character Class[-+*/%]

-the literal - (45₁₀ / 55₈ / 2D₁₆)

+the literal + (43₁₀ / 53₈ / 2B₁₆)

*the literal * (42₁₀ / 52₈ / 2A₁₆)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

%the literal % (37₁₀ / 45₈ / 25₁₆)

Positive Lookahead(?=[^-~.?,:;\n]*[-~.?,:;])

Negated Character Class[^-~.?,:;\n]*

*matches any number of characters outside the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

~the literal ~ (126₁₀ / 176₈ / 7E₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

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

Character Class[-~.?,:;]

-the literal - (45₁₀ / 55₈ / 2D₁₆)

~the literal ~ (126₁₀ / 176₈ / 7E₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

.+any character (except for line terminators), repeated at least once

$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

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

Search reference

Regular Expression

^
(?=[^A-Z\n]*[A-Z])
(?=[^a-z\n]*[a-z])
(?=[^\d\n]*\d)
(?=[^-+*/%\n]*[-+*/%])
(?=[^-~.?,:;\n]*[-~.?,:;])
.+
$

New

test123T-
test123
   
sdsdsds
lorem ipsum

Regular Expressions 101

Regular Expression

Substitution