PHP Regex Quick Reference


Pattern Reference

Pattern Description
[abc]A single character: a, b or c
[^abc]Any single character but a, b, or c
[a-z]Any single character in the range a-z
[a-zA-Z]Any single character in the range a-z or A-Z
^Start of line
$End of line
\AStart of string
\zEnd of string
.Any single character
\sAny whitespace character
\SAny non-whitespace character
\dAny digit
\DAny non-digit
\wAny word character (letter, number, underscore)
\WAny non-word character
\bAny word boundary character
(...)Capture everything enclosed
(a|b)a or b
a?Zero or one of a
a*Zero or more of a
a+One or more of a
a{3}Exactly 3 of a
a{3,}3 or more of a
a{3,6}Between 3 and 6 of a

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