i have created own custom word limit function in wordpress. need way ignore shortcode part of word count. i don't want strip out ignore shortcodes part of word count. otherwise if choose number 15 , shortcode in part of 15 word limit page fatal error.
function my_word_limit($limit) { $content = explode(' ', get_the_content(), $limit); if (count($content)>=$limit) { array_pop($content); $content = implode(" ",$content).'...'; } else { $content = implode(" ",$content); } $content = apply_filters('the_content', $content); return $content; } this shortcode using example.
[di-video-logged-out]<iframe src="https://www.youtube.com/embed/leiu8gba634" width="854" height="480"></iframe>[/di-video-logged-out]
trim content , limit count word
( keep shortcode on output content trimmed, can tweak if don't )
here approach use wp_trim_word of content , filter wp_trim_word. also, can use function wpso36236774_trim_words such $post->post_content or get_the_content directly ( without filter ). usage commented inside code.
add_filter( 'wp_trim_words', 'wpso36236774_trim_words', 10, 4 ); /* trims text number of words. * @author jevuska * @version 1.0.1 * * kepp shortcode if exist in text. * combination function of strip_shortcodes , wp_trim_words * default $num_words = 55 * ** usage ** using directly ** wpso36236774_trim_words( $text, 56 ) ** wpso36236774_trim_words( $text, 56, null, false, false, true ) - return array ** shortcode hidden if $num_words not set or if set value = 55 4 arguments ** ** use wp_trim_words ** wp_trim_words( $text, $num_words = 56 ) ** fire wp_trim_words ** shortcode hidden if $num_words not set or $num_words = 55 ** position in bottom ** add_filter( 'wp_trim_words', 'wpso36236774_trim_words', 10, 4 ); * * @param string $text text trim. * @param int $num_words number of words trim text to. default 5. * @param string $more optional string append end of trimmed text, e.g. …. * @param string $original_content text before trimmed. * @param mix $pos shortcode position. can set 'top' value if using directly * @param boolean $count word count * @return string text after filter witch $num_words * @return array if using directly , parameter $count set true */ function wpso36236774_trim_words( $text, $num_words = 55, $more = null, $original_content = false, $pos = false, $count = false ) { if ( null === $more) $more = ' ' . '[…]'; $shortcode = $strip_shortcode = true; if ( ! $original_content ) $original_content = $text; $text = $original_content; /* check existing shortcode * */ if ( false === strpos( $text, '[' ) ) $strip_shortcode = false; global $shortcode_tags; if ( empty( $shortcode_tags ) || ! is_array( $shortcode_tags ) ) $strip_shortcode = false; /* strip content shortcode * */ if ( $strip_shortcode ) { preg_match_all( '@\[([^<>&/\[\]\x00-\x20=]++)@', $text, $matches ); $tagnames = array_intersect( array_keys( $shortcode_tags ), $matches[1] ); if ( ! empty( $tagnames ) ) { $text = do_shortcodes_in_html_tags( $text, true, $tagnames ); $pattern = get_shortcode_regex( $tagnames ); preg_match_all( "/$pattern/", $text, $match ); if ( ! empty( $match[0] ) && is_array( $match[0] ) ) { $shortcode = ''; $length = count( $match[0] ); ( $i = 0 ; $i < $length; $i++ ) $shortcode .= do_shortcode( $match[0][ $i ] ); //match shortcode } $text = preg_replace_callback( "/$pattern/", 'strip_shortcode_tag', $text ); $text = unescape_invalid_shortcodes( $text ); } } /* hide shortcode * base on count function arguments * */ if ( func_num_args() == 1 || ( func_num_args() == 4 && 55 == $num_words ) ) $shortcode = ''; /* split content array words * */ $text = wp_strip_all_tags( $text ); /* * translators: if word count based on single characters (e.g. east asian characters), * enter 'characters_excluding_spaces' or 'characters_including_spaces'. otherwise, enter 'words'. * not translate own language. */ if ( strpos( _x( 'words', 'word count type. not translate!' ), 'characters' ) === 0 && preg_match( '/^utf\-?8$/i', get_option( 'blog_charset' ) ) ) { $text = trim( preg_replace( "/[\n\r\t ]+/", ' ', $text ), ' ' ); preg_match_all( '/./u', $text, $words_array ); $limit_words_array = array_slice( $words_array[0], 0, $num_words + 1 ); $full_words_array = $words_array[0]; $sep = ''; } else { $limit_words_array = preg_split( "/[\n\r\t ]+/", $text, $num_words + 1, preg_split_no_empty ); $full_words_array = explode( ' ', preg_replace( "/[\n\r\t ]+/", ' ', $text ) ); $sep = ' '; } /* check word count base on $num_words * */ $word_count = count( $full_words_array ); if ( $word_count >= $num_words ) { array_pop( $limit_words_array ); $text = implode( $sep, $limit_words_array ); $text .= $more; /* keep shortcode if exists , set position ( top or bottom text ) * */ switch( $pos ) { case 'top' : $text = $shortcode . $text; break; default : $text .= $shortcode; break; } } else { $text = apply_filters( 'the_content', $original_content ); } if ( $count ) return array( 'text' => $text, 'count' => $word_count ); return $text; //output } let me know if issue code. tweak need , hope helps.
update
- fix multiple shortcode
- hide shortcode option base on total argument
- patch
$posadditional shortcode position top , bottom text ( func directly ). positon, must set class , css shortcode.
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