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Updated example in README to show usage of try/catch for dependencies

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Ben Ramsey
2013-01-20 11:07:25 -06:00
parent a07a86ef14
commit be9325ffc9
1 changed files with 26 additions and 13 deletions
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README.md
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@@ -18,7 +18,7 @@ library are recommended. However, this library is designed to work on 32-bit
builds of PHP without Moontoast\Math, with some degraded functionality. Please
check the API documention for more information.
If a particular requirement is not present, then a `[\Rhumsaa\Uuid\Exception\UnsatisfiedDependencyException][]`
If a particular requirement is not present, then a `Rhumsaa\Uuid\Exception\UnsatisfiedDependencyException`
is thrown, allowing one to catch a bad call in an environment where the call is
not supported and gracefully degrade.
@@ -26,23 +26,36 @@ not supported and gracefully degrade.
```php
<?php
require 'vendor/autoload.php';
use Rhumsaa\Uuid\Uuid;
use Rhumsaa\Uuid\Exception\UnsatisfiedDependencyException;
// Generate a version 1 (time-based) UUID
$uuid1 = Uuid::uuid1();
echo $uuid1 . "\n"; // e4eaaaf2-d142-11e1-b3e4-080027620cdd
try {
// Generate a version 3 (name-based and hashed with MD5) UUID
$uuid3 = Uuid::uuid3(Uuid::NAMESPACE_DNS, 'php.net');
echo $uuid3 . "\n"; // 11a38b9a-b3da-360f-9353-a5a725514269
// Generate a version 1 (time-based) UUID
$uuid1 = Uuid::uuid1();
echo $uuid1 . "\n"; // e4eaaaf2-d142-11e1-b3e4-080027620cdd
// Generate a version 4 (random) UUID
$uuid4 = Uuid::uuid4();
echo $uuid4 . "\n"; // 25769c6c-d34d-4bfe-ba98-e0ee856f3e7a
// Generate a version 3 (name-based and hashed with MD5) UUID
$uuid3 = Uuid::uuid3(Uuid::NAMESPACE_DNS, 'php.net');
echo $uuid3 . "\n"; // 11a38b9a-b3da-360f-9353-a5a725514269
// Generate a version 5 (name-based and hashed with SHA1) UUID
$uuid5 = Uuid::uuid5(Uuid::NAMESPACE_DNS, 'php.net');
echo $uuid5 . "\n"; // c4a760a8-dbcf-5254-a0d9-6a4474bd1b62
// Generate a version 4 (random) UUID
$uuid4 = Uuid::uuid4();
echo $uuid4 . "\n"; // 25769c6c-d34d-4bfe-ba98-e0ee856f3e7a
// Generate a version 5 (name-based and hashed with SHA1) UUID
$uuid5 = Uuid::uuid5(Uuid::NAMESPACE_DNS, 'php.net');
echo $uuid5 . "\n"; // c4a760a8-dbcf-5254-a0d9-6a4474bd1b62
} catch (UnsatisfiedDependencyException $e) {
// Some dependency was not met. Either the method cannot be called on a
// 32-bit system, or it can, but it relies on Moontoast\Math to be present.
echo 'Caught exception: ' . $e->getMessage() . "\n";
}
```
## Installation