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Source View: wp_calculate_image_srcset

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Source View

Line Code
1195       *         @type int    $value      The source width if paired with a 'w' descriptor, or a
1196       *                                  pixel density value if paired with an 'x' descriptor.
1197       *     }
1198       * }
1199       * @param array  $size_array    Array of width and height values in pixels (in that order).
1200       * @param string $image_src     The 'src' of the image.
1201       * @param array  $image_meta    The image meta data as returned by 'wp_get_attachment_metadata()'.
1202       * @param int    $attachment_id Image attachment ID or 0.
1203       */
1204      $sources = apply_filters( 'wp_calculate_image_srcset', $sources, $size_array, $image_src, $image_meta, $attachment_id );
1205
1206      // Only return a 'srcset' value if there is more than one source.
1207      if ( ! $src_matched || ! is_array( $sources ) || count( $sources ) < 2 ) {
1208           return false;
1209      }
1210
1211      $srcset = '';
1212
1213      foreach ( $sources as $source ) {