JsonFormat.php
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JsonFormat.php
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	<?php

	namespace MediaWiki\Settings\Source\Format;

	use Stringable;
	use UnexpectedValueException;

	/**
	* Decodes settings data from JSON.
	*/
	class JsonFormat implements Stringable, SettingsFormat {

	/**
	* Decodes JSON.
	*
	* @param string $data JSON string to decode.
	*
	* @return array
	* @throws UnexpectedValueException
	*/
	public function decode( string $data ): array {
	$settings = json_decode( $data, true );

	if ( $settings === null ) {
	throw new UnexpectedValueException(
	'Failed to decode JSON: ' . json_last_error_msg()
	);
	}

	if ( !is_array( $settings ) ) {
	throw new UnexpectedValueException(
	'Decoded settings must be an array'
	);
	}

	return $settings;
	}

	/**
	* Returns true for the file extension 'json'. Case insensitive.
	*
	* @param string $ext File extension.
	*
	* @return bool
	*/
	public static function supportsFileExtension( string $ext ): bool {
	return strtolower( $ext ) == 'json';
	}

	/**
	* Returns the name/type of this format (JSON).
	*
	* @return string
	*/
	public function __toString(): string {
	return 'JSON';
	}
	}