Zend\Config\Processor¶
Zend\Config\Processor
gives you the ability to perform some operations on a Zend\Config\Config
object. The
Zend\Config\Processor
is an interface that defines two methods: process()
and processValue()
. These
operations are provided by the following concrete implementations:
Zend\Config\Processor\Constant
: manage PHP constant values;Zend\Config\Processor\Filter
: filter the configuration data usingZend\Filter
;Zend\Config\Processor\Queue
: manage a queue of operations to apply to configuration data;Zend\Config\Processor\Token
: find and replace specific tokens;Zend\Config\Processor\Translator
: translate configuration values in other languages usingZend\I18n\Translator
;
Below we reported some examples for each type of processor.
Zend\Config\Processor\Constant¶
Using Zend\Config\Processor\Constant
This example illustrates the basic use of Zend\Config\Processor\Constant
:
1 2 3 4 5 6 7 8 | define ('TEST_CONST', 'bar');
// set true to Zend\Config\Config to allow modifications
$config = new Zend\Config\Config(array('foo' => 'TEST_CONST'), true);
$processor = new Zend\Config\Processor\Constant();
echo $config->foo . ',';
$processor->process($config);
echo $config->foo;
|
This example returns the output: TEST_CONST, bar.
.
Zend\Config\Processor\Filter¶
Using Zend\Config\Processor\Filter
This example illustrates the basic use of Zend\Config\Processor\Filter
:
1 2 3 4 5 6 7 8 9 10 11 12 | use Zend\Filter\StringToUpper;
use Zend\Config\Processor\Filter as FilterProcessor;
use Zend\Config\Config;
$config = new Config(array ('foo' => 'bar'), true);
$upper = new StringToUpper();
$upperProcessor = new FilterProcessor($upper);
echo $config->foo . ',';
$upperProcessor->process($config);
echo $config->foo;
|
This example returns the output: bar,BAR
.
Zend\Config\Processor\Queue¶
Using Zend\Config\Processor\Queue
This example illustrates the basic use of Zend\Config\Processor\Queue
:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | use Zend\Filter\StringToLower;
use Zend\Filter\StringToUpper;
use Zend\Config\Processor\Filter as FilterProcessor;
use Zend\Config\Processor\Queue;
use Zend\Config\Config;
$config = new Config(array ('foo' => 'bar'), true);
$upper = new StringToUpper();
$lower = new StringToLower();
$lowerProcessor = new FilterProcessor($lower);
$upperProcessor = new FilterProcessor($upper);
$queue = new Queue();
$queue->insert($upperProcessor);
$queue->insert($lowerProcessor);
$queue->process($config);
echo $config->foo;
|
This example returns the output: bar
. The filters in the queue are applied with a FIFO logic (First In, First
Out).
Zend\Config\Processor\Token¶
Using Zend\Config\Processor\Token
This example illustrates the basic use of Zend\Config\Processor\Token
:
1 2 3 4 5 6 7 8 | // set the Config to true to allow modifications
$config = new Config(array('foo' => 'Value is TOKEN'), true);
$processor = new TokenProcessor();
$processor->addToken('TOKEN', 'bar');
echo $config->foo . ',';
$processor->process($config);
echo $config->foo;
|
This example returns the output: Value is TOKEN,Value is bar
.
Zend\Config\Processor\Translator¶
Using Zend\Config\Processor\Translator
This example illustrates the basic use of Zend\Config\Processor\Translator
:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | use Zend\Config\Config;
use Zend\Config\Processor\Translator as TranslatorProcessor;
use Zend\I18n\Translator\Translator;
$config = new Config(array('animal' => 'dog'), true);
/*
* The following mapping would exist for the translation
* loader you provide to the translator instance
* $italian = array(
* 'dog' => 'cane'
* );
*/
$translator = new Translator();
// ... configure the translator ...
$processor = new TranslatorProcessor($translator);
echo "English: {$config->animal}, ";
$processor->process($config);
echo "Italian: {$config->animal}";
|
This example returns the output: English: dog, Italian: cane
.