Match an IP address : Regular Expressions « String « PHP

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PHP » String » Regular Expressions

Match an IP address


 

<?

$test = "156.152.55.35";

if ( preg_match( "/(\d+)\.(\d+)\.(\d+)\.(\d+)/", $test, $array ) ) {

  print "<pre>\n";

  print_r( $array );

  print "</pre>\n";

}

?>

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.
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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

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