In the use of lazyload in order to really achieve the effect of the booth map into the SRC attribute, the original image into the data-original attribute, a change is more troublesome, here we can use the buffer and regular batch to help us to replace:
| The code is as follows |
Copy Code |
| function Bing_filter_lazy ($content) {
if (Is_feed ()) return $content;
return Preg_replace_callback ('/(<\s*img[^>]+) (src\s*=\s* "[^"]+ ") ([^>]+>)/I ', ' bing_filter_lazy_ Replace ', $content);
}
Retrofit IMG Tags
function Bing_filter_lazy_replace ($matches) {
if (!preg_match ('/class\s*=\s* "/I ', $matches [0])) $class _attr = ' class= '" ';
$replacement = $matches [1]. $class _attr. ' Src= '. Get_bloginfo (' Template_directory '). '/images/grey.gif '. ' Data-original '. SUBSTR ($matches [2], 3). $matches [3];
$replacement = preg_replace ('/class\s*=\s* '/I ', ' class= ' lazy ', $replacement);
$replacement. = ' <noscript> '. $matches [0]. ' </noscript> ';
return $replacement;
}
Control buffers
function bing_filter_lazy_html () {
Ob_start (' Bing_filter_lazy ');
}
if (!is_admin ()) add_action (' wp_loaded ', ' bing_filter_lazy_html ');
Note the address of the bitmap. |
