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@@ 1015-1031 (lines=17) @@
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| 1012 |
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* Default null. |
| 1013 |
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* @return string|bool A 'srcset' value string or false. |
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*/ |
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function wp_get_attachment_image_srcset( $attachment_id, $size = 'medium', $image_meta = null ) { |
| 1016 |
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if ( ! $image = wp_get_attachment_image_src( $attachment_id, $size ) ) { |
| 1017 |
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return false; |
| 1018 |
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} |
| 1019 |
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| 1020 |
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if ( ! is_array( $image_meta ) ) { |
| 1021 |
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$image_meta = wp_get_attachment_metadata( $attachment_id ); |
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} |
| 1023 |
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| 1024 |
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$image_src = $image[0]; |
| 1025 |
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$size_array = array( |
| 1026 |
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absint( $image[1] ), |
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absint( $image[2] ) |
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); |
| 1029 |
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| 1030 |
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return wp_calculate_image_srcset( $size_array, $image_src, $image_meta, $attachment_id ); |
| 1031 |
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} |
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| 1033 |
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/** |
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* A helper function to calculate the image sources to include in a 'srcset' attribute. |
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@@ 1233-1249 (lines=17) @@
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* Default null. |
| 1231 |
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* @return string|bool A valid source size value for use in a 'sizes' attribute or false. |
| 1232 |
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*/ |
| 1233 |
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function wp_get_attachment_image_sizes( $attachment_id, $size = 'medium', $image_meta = null ) { |
| 1234 |
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if ( ! $image = wp_get_attachment_image_src( $attachment_id, $size ) ) { |
| 1235 |
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return false; |
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} |
| 1237 |
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| 1238 |
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if ( ! is_array( $image_meta ) ) { |
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$image_meta = wp_get_attachment_metadata( $attachment_id ); |
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} |
| 1241 |
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| 1242 |
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$image_src = $image[0]; |
| 1243 |
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$size_array = array( |
| 1244 |
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absint( $image[1] ), |
| 1245 |
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absint( $image[2] ) |
| 1246 |
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); |
| 1247 |
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| 1248 |
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return wp_calculate_image_sizes( $size_array, $image_src, $image_meta, $attachment_id ); |
| 1249 |
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} |
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| 1251 |
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/** |
| 1252 |
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* Creates a 'sizes' attribute value for an image. |
ntwb /
wordpress
