'%baz%', 'baz' => 'bar', 'bar' => 'foo is %%foo bar', 'escape' => '@escapeme', 'values' => [true, false, null, 0, 1000.3, 'true', 'false', 'null'], 'binary' => "\xf0\xf0\xf0\xf0", 'binary-control-char' => "This is a Bell char \x07", 'null string' => 'null', 'string of digits' => '123', 'string of digits prefixed with minus character' => '-123', 'true string' => 'true', 'false string' => 'false', 'binary number string' => '0b0110', 'numeric string' => '-1.2E2', 'hexadecimal number string' => '0xFF', 'float string' => '10100.1', 'positive float string' => '+10100.1', 'negative float string' => '-10100.1', ])); return $container;