GUID regex PHP

GUID regex PHP

GUID is an acronym for Globally Unique Identifier and used for resource identification. The term is generally used instead of UUID when working with Microsoft technologies.

JavaScript
JavaScript
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Python
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Java
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C#
PHP
PHP

GUID regex

Below is a simple regular expression to match a guide in a given string:

"/^(?:\\{{0,1}(?:[0-9a-fA-F]){8}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){12}\\}{0,1})$/"

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/^(?:\{{0,1}(?:[0-9a-fA-F]){8}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){12}\}{0,1})$/

True

False

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Example code in PHP:

// Validate GUID
$guid_regex = "/^(?:\\{{0,1}(?:[0-9a-fA-F]){8}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){12}\\}{0,1})$/"; 
echo preg_match($guid_regex, '51d52cf1-83c9-4f02-b117-703ecb728b74'); // returns 1
echo preg_match($guid_regex, '{51d52cf1-83c9-4f02-b117-703ecb728b74}'); // returns 1
echo preg_match($guid_regex, '{51d52cf1-83c9-4f02-b117-703ecb728-b74}'); // returns 0

// Extract GUID from a string
$extract_guid_pattern = "/(?:\\{{0,1}(?:[0-9a-fA-F]){8}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){12}\\}{0,1})/";
$string_to_match = 'Resource {51d52cf1-83c9-4f02-b117-703ecb728b74} is down';
preg_match_all($extract_guid_pattern, $string_to_match, $matches);
print_r($matches[0])// matches[0] is ['{51d52cf1-83c9-4f02-b117-703ecb728b74}']

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True

False

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Test it!

True

False

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