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<?php
/**
 * A modules class for Jetpack.
 *
 * @package automattic/jetpack-status
 */

namespace Automattic\Jetpack;

/**
 * Class Automattic\Jetpack\Files
 *
 * Used to retrieve information about files.
 */
class Files {
	/**
	 * Returns an array of all PHP files in the specified absolute path.
	 * Equivalent to glob( "$absolute_path/*.php" ).
	 *
	 * @param string $absolute_path The absolute path of the directory to search.
	 * @return array Array of absolute paths to the PHP files.
	 */
	public function glob_php( $absolute_path ) {
		if ( function_exists( 'glob' ) ) {
			return glob( "$absolute_path/*.php" );
		}

$absolute_path = untrailingslashit( $absolute_path );
		$files         = array();
		$dir           = @opendir( $absolute_path ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
		if ( ! $dir ) {
			return $files;
		}

// phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.FoundInWhileCondition
		while ( false !== $file = readdir( $dir ) ) {
			if ( '.' === substr( $file, 0, 1 ) || '.php' !== substr( $file, -4 ) ) {
				continue;
			}

$file = "$absolute_path/$file";

if ( ! is_file( $file ) ) {
				continue;
			}

$files[] = $file;
		}

closedir( $dir );

return $files;
	}
}