Brackets [] finds a range of characters. : Regular Expressions « String « PHP






  1. PHP
  2. String
  3. Regular Expressions

Brackets [] finds a range of characters.

 
Regexp [php] finds any string containing the character p or h. 

[09] matches any decimal digit from 0 through 9.
[az] matches any character from lowercase a through lowercase z.
[AZ] matches any character from uppercase A through uppercase Z.
[aZ] matches any character from lowercase a through uppercase Z.








Related examples in the same category

1.Character Classes
2.Complete list of regular expression examples
3.\b and \B, equate to "On a word boundary" and "Not on a word boundary," respectively.
4.^ and $ are line anchors.
5.Line Anchors
6.Match URL
7.Match an IP address
8.Match the smallest number of characters starting with "p" and ending with "t"
9.Matching GUIDs/UUIDs
10.Matching a Valid E-mail Address
11.Matching a Valid IP Address
12.Matching using backreferences
13.Matching with Greedy vs. Nongreedy Expressions
14.Matching with character classes and anchors
15.Matching with |
16.Define a pattern and use parentheses to match individual elements within it
17.Greedy Qualifiers
18.Greedy and non-greedy matching
19.Greedy versus nongreedy matching
20.Grouping captured subpatterns
21.Validating Pascal Case Names
22.Validating U.S. Currency
23.Validating a credit card number
24.Nongreedy Qualifiers
25.POSIX Regular Expressions Character Classes
26.POSIX Regular Expressions Character Classes
27.Ranges
28.Option patterns:
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