|
5 | 5 | /**
|
6 | 6 | * Generate a string of HTML attributes
|
7 | 7 | *
|
8 |
| - * @param array $attr Associative array of attribute names and values. |
9 |
| - * @param callable $callback Callback function to escape values for HTML attributes. |
10 |
| - * Defaults to `htmlspecialchars()`. |
| 8 | + * @param array $attr Associative array of attribute names and values. |
| 9 | + * @param callable|null $callback Callback function to escape values for HTML attributes. |
| 10 | + * Defaults to `htmlspecialchars()`. |
11 | 11 | * @return string Returns a string of HTML attributes.
|
12 | 12 | */
|
13 |
| - function html_build_attributes( $attr = [], $callback = null ) |
| 13 | + function html_build_attributes( $attr, $callback = null ) |
14 | 14 | {
|
15 |
| - $html = ''; |
16 |
| - |
17 |
| - if ( count($attr) ) { |
18 |
| - $html = array_map( |
19 |
| - function ( $val, $key ) { |
20 |
| - if ( is_bool( $val ) ) { |
21 |
| - return ( $val ? $key : '' ); |
22 |
| - } elseif ( isset( $val ) ) { |
23 |
| - if ( $val instanceof Closure ) { |
24 |
| - $val = $val(); |
25 |
| - } elseif ( is_callable( [ $val, 'toArray' ] ) ) { |
26 |
| - $val = $val->toArray(); |
27 |
| - } elseif ( is_callable( [ $val, '__toString' ] ) ) { |
28 |
| - $val = strval( $val ); |
29 |
| - } |
30 |
| - |
31 |
| - if ( is_array( $val ) ) { |
32 |
| - $val = implode( ' ', $val ); |
33 |
| - } |
34 |
| - |
35 |
| - if ( is_callable( $callback ) ) { |
36 |
| - $val = call_user_func( $callback, $val ); |
37 |
| - } elseif ( function_exists('esc_attr') ) { |
38 |
| - $val = esc_attr( $val ); |
39 |
| - } else { |
40 |
| - $val = htmlspecialchars( $val, ENT_QUOTES ); |
41 |
| - } |
42 |
| - |
43 |
| - if ( is_string( $val ) ) { |
44 |
| - return sprintf( '%1$s="%2$s"', $key, $val ); |
45 |
| - } |
| 15 | + if ( ! count($attr) ) { |
| 16 | + return ''; |
| 17 | + } |
| 18 | + |
| 19 | + $html = array_map( |
| 20 | + function ( $val, $key ) use ( $callback ) { |
| 21 | + if ( is_bool( $val ) ) { |
| 22 | + return ( $val ? $key : '' ); |
| 23 | + } elseif ( isset( $val ) ) { |
| 24 | + if ( $val instanceof \Closure ) { |
| 25 | + $val = $val(); |
| 26 | + } elseif ( $val instanceof \JsonSerializable ) { |
| 27 | + $val = json_encode( |
| 28 | + $val->jsonSerialize(), |
| 29 | + (JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE) |
| 30 | + ); |
| 31 | + } elseif ( is_callable( [ $val, 'toArray' ] ) ) { |
| 32 | + $val = $val->toArray(); |
| 33 | + } elseif ( is_callable( [ $val, '__toString' ] ) ) { |
| 34 | + $val = strval( $val ); |
46 | 35 | }
|
47 |
| - }, |
48 |
| - $attr, |
49 |
| - array_keys( $attr ) |
50 |
| - ); |
51 | 36 |
|
52 |
| - $html = implode( ' ', $html ); |
53 |
| - } |
| 37 | + if ( is_array( $val ) ) { |
| 38 | + $val = implode( ' ', $val ); |
| 39 | + } |
| 40 | + |
| 41 | + if ( is_callable( $callback ) ) { |
| 42 | + $val = call_user_func( $callback, $val ); |
| 43 | + } elseif ( function_exists('esc_attr') ) { |
| 44 | + $val = esc_attr( $val ); |
| 45 | + } else { |
| 46 | + $val = htmlspecialchars( $val, ENT_QUOTES ); |
| 47 | + } |
| 48 | + |
| 49 | + if ( is_string( $val ) ) { |
| 50 | + return sprintf( '%1$s="%2$s"', $key, $val ); |
| 51 | + } |
| 52 | + } |
| 53 | + }, |
| 54 | + $attr, |
| 55 | + array_keys( $attr ) |
| 56 | + ); |
54 | 57 |
|
55 |
| - return $html; |
| 58 | + return implode( ' ', $html ); |
56 | 59 | }
|
57 | 60 |
|
58 | 61 | endif;
|
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