Option patterns: : Regular Expressions « String « PHP

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PHP » String » Regular Expressions

Option patterns:


 

(pattern) = Groups the pattern to act as one item and captures it

    

    

    

    (x|y) = Matches either pattern x, or pattern y

    

    

    

    [abc] = Matches either the character a, b, or c

    

    

    

    [^abc] = Matches any character except a, b, or c

    

    

    

    [a-f] = Matches characters a through f

Related examples in the same category

1.	Brackets [] finds a range of characters.
2.	Character Classes
3.	Complete list of regular expression examples
4.	\b and \B, equate to "On a word boundary" and "Not on a word boundary," respectively.
5.	^ and $ are line anchors.
6.	Line Anchors
7.	Match URL
8.	Match an IP address
9.	Match the smallest number of characters starting with "p" and ending with "t"
10.	Matching GUIDs/UUIDs
11.	Matching a Valid E-mail Address
12.	Matching a Valid IP Address
13.	Matching using backreferences
14.	Matching with Greedy vs. Nongreedy Expressions
15.	Matching with character classes and anchors
16.	Matching with \|
17.	Define a pattern and use parentheses to match individual elements within it
18.	Greedy Qualifiers
19.	Greedy and non-greedy matching
20.	Greedy versus nongreedy matching
21.	Grouping captured subpatterns
22.	Validating Pascal Case Names
23.	Validating U.S. Currency
24.	Validating a credit card number
25.	Nongreedy Qualifiers
26.	POSIX Regular Expressions Character Classes
27.	POSIX Regular Expressions Character Classes
28.	Ranges
29.	Predefined Character Ranges (Character Classes)
30.	Pattern matches:
31.	Pattern match extenders:
32.	Perl-Compatible Regular Expressions (PCRE)
33.	Qualifiers restrict the number of times the preceding expression may appear.
34.	Quantifiers for Matching a Recurring Character
35.	Quantifiers: +, *, ?, {int. range}, and $ follow a character sequence:
36.	Special classes for regular expression
37.	Regular expressions using character classes

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