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How To Create Custom WordPress Excerpt Length

// CUSTOM EXCERPT LENGTH	
function excerpt($limit) {
    return wp_trim_words(get_the_excerpt(), $limit, custom_read_more());
}
function custom_read_more() {
    return ' <span><a href="'. get_permalink() .'" title="Read the full story" class="excerptlink">[...] Read the full story</a></span>';
}

// CUSTOM EXCERPT LENGTH

function excerpt($limit) {

return wp_trim_words(get_the_excerpt(), $limit, custom_read_more());

}

function custom_read_more() {

return ' <span><a href="'. get_permalink() .'" title="Read the full story" class="excerptlink">[...] Read the full story</a></span>';

}

Place the PHP snippet below in your theme template and the excerpt will be limited to 36 characters.

<?php echo excerpt(36); ?>

1	<?php echo excerpt(36); ?>