So, here it is, without the nasty php open tag ;0) :

Usage: (@see usage.php, or unit tests for more details)
—————————————-

//require the library
require_once __DIR__ . ‘/src/Enum.func.php’;

//if you don’t have a cache directory, create one
@mkdir(__DIR__ . ‘/cache’);
EnumGenerator::setDefaultCachedClassesDir(__DIR__ . ‘/cache’);

//Class definition is evaluated on the fly:
Enum(‘FruitsEnum’, array(‘apple’ , ‘orange’ , ‘rasberry’ , ‘bannana’));

//Class definition is cached in the cache directory for later usage:
Enum(‘CachedFruitsEnum’, array(‘apple’ , ‘orange’ , ‘rasberry’ , ‘bannana’), ‘\my\company\name\space’, true);

echo ‘FruitsEnum::APPLE() == FruitsEnum::APPLE(): ‘;
var_dump(FruitsEnum::APPLE() == FruitsEnum::APPLE()) . “\n”;

echo ‘FruitsEnum::APPLE() == FruitsEnum::ORANGE(): ‘;
var_dump(FruitsEnum::APPLE() == FruitsEnum::ORANGE()) . “\n”;

echo ‘FruitsEnum::APPLE() instanceof Enum: ‘;
var_dump(FruitsEnum::APPLE() instanceof Enum) . “\n”;

echo ‘FruitsEnum::APPLE() instanceof FruitsEnum: ‘;
var_dump(FruitsEnum::APPLE() instanceof FruitsEnum) . “\n”;

echo “->getName()\n”;
foreach (FruitsEnum::iterator() as $enum)
{
echo ” ” . $enum->getName() . “\n”;
}

echo “->getValue()\n”;
foreach (FruitsEnum::iterator() as $enum)
{
echo ” ” . $enum->getValue() . “\n”;
}

echo “->getOrdinal()\n”;
foreach (CachedFruitsEnum::iterator() as $enum)
{
echo ” ” . $enum->getOrdinal() . “\n”;
}

echo “->getBinary()\n”;
foreach (CachedFruitsEnum::iterator() as $enum)
{
echo ” ” . $enum->getBinary() . “\n”;
}

Output:
——-

FruitsEnum::APPLE() == FruitsEnum::APPLE(): bool(true)
FruitsEnum::APPLE() == FruitsEnum::ORANGE(): bool(false)
FruitsEnum::APPLE() instanceof Enum: bool(true)
FruitsEnum::APPLE() instanceof FruitsEnum: bool(true)
->getName()
APPLE
ORANGE
RASBERRY
BANNANA
->getValue()
apple
orange
rasberry
bannana
->getValue() when values have been specified
pig
dog
cat
bird
->getOrdinal()
1
2
3
4
->getBinary()
1
2
4
8

This library handle classes generation, classes caching and it implements the Type Safe Enumeration design pattern, with several helper methods for dealing with enums, like retrieving an ordinal for enums sorting, or retrieving a binary value, for enums combinations.

The generated code use a plain old php template file, which is also configurable, so you can provide your own template.

It is full test covered with phpunit.

php-enums on github (feel free to fork)

Usage: (@see usage.php, or unit tests for more details)
—————————————-

getName()\n";
foreach (FruitsEnum::iterator() as $enum)
{
echo " " . $enum->getName() . "\n";
}

FruitsEnum::APPLE() == FruitsEnum::APPLE(): bool(true)
FruitsEnum::APPLE() == FruitsEnum::ORANGE(): bool(false)
FruitsEnum::APPLE() instanceof Enum: bool(true)
FruitsEnum::APPLE() instanceof FruitsEnum: bool(true)
->getName()
APPLE
ORANGE
RASBERRY
BANNANA
->getValue()
apple
orange
rasberry
bannana
->getValue() when values have been specified
pig
dog
cat
bird
->getOrdinal()
1
2
3
4
->getBinary()
1
2
4
8

Jedna z věcí, která v PHP chybí je podpora výčtového typu – enum. Je to vlastně množina konstant – enumerátorů, každá má svůj identifikátor. Proměnná takového výčtového typu pak nabývá jednu z konstant. Bez výčtového typu se …