Filters an image’s ‘srcset’ sources.

$sources array

One or more arrays of source data to include in the 'srcset'.

• widtharray
  • urlstring
    The URL of an image source.
  • descriptorstring
    The descriptor type used in the image candidate string, either 'w' or 'x'.
  • valueint
    The source width if paired with a 'w' descriptor, or a pixel density value if paired with an 'x' descriptor.
    
  $size_array array
  An array of requested width and height values.
  

  • int
    The width in pixels.
  • 1int
    The height in pixels.
  $image_src string
  The 'src' of the image.
  $image_meta array
  The image meta data as returned by 'wp_get_attachment_metadata() '.
  $attachment_id int
  Image attachment ID or 0.

  Source

  File: wp-includes/media.php. View all references

  $sources = apply_filters( 'wp_calculate_image_srcset', $sources, $size_array, $image_src, $image_meta, $attachment_id );
  

  Related

  Used By

  Used By	Description
  wp_calculate_image_srcset() wp-includes/media.php	A helper function to calculate the image sources to include in a ‘srcset’ attribute.

  Changelog

  Version	Description
  4.4.0	Introduced.