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<?php
declare( strict_types = 1 );
namespace Maps\Presentation;
/**
* @licence GNU GPL v2+
* @author Jeroen De Dauw < jeroendedauw@gmail.com >
*/
class ParameterExtractor {
/**
* Extracts the value of a parameter from a parameter list.
*
* @param string[] $parameterNames Name and aliases of the parameter. First match gets used
* @param string[] $rawParameters Parameters that did not get processed further than being put in a key-value map
*
* @return string|null
*/
public function extract( array $parameterNames, array $rawParameters ) {
foreach( $parameterNames as $parameterName ) {
foreach ( $rawParameters as $rawName => $rawValue ) {
if ( trim( strtolower( $rawName ) ) === $parameterName ) {
return trim( $rawValue );
}
}
}
return null;
}
public static function extractFromKeyValueStrings( array $keyValueStrings ) {
$rawParameters = [];
foreach ( $keyValueStrings as $keyValueString ) {
$parts = explode( '=', $keyValueString, 2 );
if ( count( $parts ) === 2 ) {
$rawParameters[$parts[0]] = $parts[1];
}
}
return $rawParameters;
}
}
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