Viewing file:  ExplodeStrategy.php (3.01 KB) -rwxrwxr-x
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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Stdlib\Hydrator\Strategy;
final class ExplodeStrategy implements StrategyInterface
{
/**
* @var string
*/
private $valueDelimiter;
/**
* @var int|null
*/
private $explodeLimit;
/**
* Constructor
*
* @param string $delimiter String that the values will be split upon
* @param int|null $explodeLimit Explode limit
*/
public function __construct($delimiter = ',', $explodeLimit = null)
{
$this->setValueDelimiter($delimiter);
$this->explodeLimit = ($explodeLimit === null) ? null : (int) $explodeLimit;
}
/**
* Sets the delimiter string that the values will be split upon
*
* @param string $delimiter
* @return self
*/
private function setValueDelimiter($delimiter)
{
if (!is_string($delimiter)) {
throw new Exception\InvalidArgumentException(sprintf(
'%s expects Delimiter to be string, %s provided instead',
__METHOD__,
is_object($delimiter) ? get_class($delimiter) : gettype($delimiter)
));
}
if (empty($delimiter)) {
throw new Exception\InvalidArgumentException('Delimiter cannot be empty.');
}
$this->valueDelimiter = $delimiter;
}
/**
* {@inheritDoc}
*
* Split a string by delimiter
*
* @param string|null $value
*
* @return string[]
*
* @throws Exception\InvalidArgumentException
*/
public function hydrate($value)
{
if (null === $value) {
return array();
}
if (!(is_string($value) || is_numeric($value))) {
throw new Exception\InvalidArgumentException(sprintf(
'%s expects argument 1 to be string, %s provided instead',
__METHOD__,
is_object($value) ? get_class($value) : gettype($value)
));
}
if ($this->explodeLimit !== null) {
return explode($this->valueDelimiter, $value, $this->explodeLimit);
}
return explode($this->valueDelimiter, $value);
}
/**
* {@inheritDoc}
*
* Join array elements with delimiter
*
* @param string[] $value The original value.
*
* @return string|null
*/
public function extract($value)
{
if (!is_array($value)) {
throw new Exception\InvalidArgumentException(sprintf(
'%s expects argument 1 to be array, %s provided instead',
__METHOD__,
is_object($value) ? get_class($value) : gettype($value)
));
}
return empty($value) ? null : implode($this->valueDelimiter, $value);
}
}
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