getFFMpeg(); $files = [ __DIR__ . '/../files/Jahzzar_-_05_-_Siesta.mp3', __DIR__ . '/../files/02_-_Favorite_Secrets.mp3', ]; $audio = $ffmpeg->open(reset($files)); $this->assertInstanceOf('FFMpeg\Media\Audio', $audio); $outputDirectory = __DIR__ . '/output/'; clearstatcache($outputDirectory); $filename = $outputDirectory . 'concat-output.mp3'; $audio->concat($files)->saveFromSameCodecs($filename, TRUE); $this->assertFileExists($filename); unlink($filename); } }