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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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1044 |
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1045 | /** |
1046 | * Filter the maximum image width to be included in a 'srcset' attribute. |
1047 | * |
1048 | * @since 4.4.0 |
1049 | * |
1050 | * @param int $max_width The maximum image width to be included in the 'srcset'. Default '1600'. |
1051 | * @param array $size_array Array of width and height values in pixels (in that order). |
1052 | */ |
1053 | $max_srcset_image_width = apply_filters( 'max_srcset_image_width', 1600, $size_array ); |
1054 |
|
1055 | // Array to hold URL candidates. |
1056 | $sources = array(); |
1057 |
|
1058 | /** |
1059 | * To make sure the ID matches our image src, we will check to see if any sizes in our attachment |
1060 | * meta match our $image_src. If no matches are found we don't return a srcset to avoid serving |
1061 | * an incorrect image. See #35045. |
1062 | */ |