3个设置WordPress内容自动图片添加ALT和TITLE属性的脚本

function image_alttitle( $imgalttitle ){
global $post;
$category = get_the_category();
$flname=$category[0]->cat_name;
$btitle = get_bloginfo();
$imgtitle = $post->post_title;
$imgUrl = "<img\s[^>]*src=(\"??)([^\" >]*?)\\1[^>]*>";
if(preg_match_all("/$imgUrl/siU",$imgalttitle,$matches,PREG_SET_ORDER)){
if( !empty($matches) ){
for ($i=0; $i < count($matches); $i++){
$tag = $url = $matches[$i][0];
$j=$i+1;
$judge = '/title=/';
preg_match($judge,$tag,$match,PREG_OFFSET_CAPTURE);
if( count($match) < 1 )
$altURL = ' alt="'.$imgtitle.' '.$flname.' 第'.$j.'张" title="'.$imgtitle.' '.$flname.' 第'.$j.'张-'.$btitle.'" ';
$url = rtrim($url,'>');
$url .= $altURL.'>';
$imgalttitle = str_replace($tag,$url,$imgalttitle);
}
}
}
return $imgalttitle;
}
add_filter( 'the_content','image_alttitle');

function image_alttitle( $imgalttitle ){
global $post;
$category = get_the_category();
$flname=$category[0]->cat_name;
$btitle = get_bloginfo();
$imgtitle = $post->post_title;
$imgUrl = "<img\s[^>]*src=(\"??)([^\" >]*?)\\1[^>]*>";
if(preg_match_all("/$imgUrl/siU",$imgalttitle,$matches,PREG_SET_ORDER)){
if( !empty($matches) ){
for ($i=0; $i < count($matches); $i++){
$tag = $url = $matches[$i][0];
$j=$i+1;
$judge = '/title=/';
preg_match($judge,$tag,$match,PREG_OFFSET_CAPTURE);
if( count($match) < 1 )
$altURL = ' alt="'.$imgtitle.' '.$flname.' 第'.$j.'张" title="'.$imgtitle.' '.$flname.' 第'.$j.'张-'.$btitle.'" ';
$url = rtrim($url,'>');
$url .= $altURL.'>';
$imgalttitle = str_replace($tag,$url,$imgalttitle);
}
}
}
return $imgalttitle;
}
add_filter( 'the_content','image_alttitle');

function wpface_image_alt_title($content) {
global $post;
$alt_title = $post->post_title;
preg_match_all('/<img(.*?)src=(\'|\")(.*?)\.(bmp|gif|jpeg|jpg|png)(\'|\")(.*?)>/i', $content, $matches);
if($matches) {
foreach($matches[0] as $val) {
$place_content = $val;
//先把空白 alt 和 title 属性清理掉
$place_content = str_replace(' alt ', ' ', $place_content);
$place_content = str_replace(' alt=""', '', $place_content);
$place_content = str_replace(' title ', ' ', $place_content);
$place_content = str_replace(' title=""', '', $place_content);
//如果想覆盖原来的 alt 或 title 属性，就把下面两句的注释取消
//$place_content = preg_replace('/ alt="(.*?)"/', '', $place_content);
//$place_content = preg_replace('/ title="(.*?)"/', '', $place_content);
//判断如果没有 alt 或 title 属性就用文章标题添加
if(strpos($place_content,'alt=')===false) {
$place_content = str_replace("/>", "", $place_content).' alt="'.$alt_title.'"/>';
}
if(strpos($place_content,'title=')===false) {
$place_content = str_replace("/>", "", $place_content).' title="'.$alt_title.'"/>';
}
//替换 img 标签
$content = str_replace($val, $place_content, $content);
}
}
return $content;
}
add_filter('the_content','wpface_image_alt_title');