问题描述：

Right so this seems to have been asked a few times but I cannot seem to find definitive working answer.

Currently I am trying to limit my post title and post excerpt on my WP website.

I have managed to trim the titles by character using

function custom_trim_my_title( $title ) {
if ( strlen( $title ) >= 72 && ! is_singular() ) {
$title = substr( $title, 0, 72 ) . \'...\';
return $title;
}
return $title;
}
add_filter( \'the_title\', \'custom_trim_my_title\' );

And that seems to be working okay but I can\'t seem to get it to work for the excerpt.

I was using this word count:

function custom_excerpt_length( $length ) {
return 20;
}
add_filter( \'excerpt_length\', \'custom_excerpt_length\', 999 );

But the longer words still made it look messy so I need a character count and have tried this:

add_filter(\'the_excerpt\',\'excerpt_char_limit\');
function excerpt_char_limit($e){
return substr($e,0,50);
}

But it doesn\'t seem to work.

网友观点：