主题wpexplorer Today主题的WordPress摘录字符限制

我需要帮助修复http://wpexplorer-demos.com/today/page/2/今日主题。
【主题wpexplorer Today主题的WordPress摘录字符限制】frontbox框采用随机大小。我如何解决从单词到字符的问题。还有图像。任何帮助PLZ真的很感激。我不是编码员。

/** * Custom excerpts based on wp_trim_words * Created for child-theming purposes * * @linkhttp://codex.wordpress.org/Function_Reference/wp_trim_words * @since 1.0.0 */ function wpex_excerpt( $length = 45, $readmore = false ) {// Get global post data global $post; // Check for custom excerpt if ( has_excerpt( $post-> ID ) ) { $output = $post-> post_excerpt; }// No custom excerpt...so lets generate one else {// Redmore text $readmore_text = get_theme_mod( 'entry_readmore_text', esc_html__( 'read more', 'today' ) ); // Readmore link $readmore_link = '< a href="'. get_permalink( $post-> ID ) .'" title="'. $readmore_text .'"> '. $readmore_text .'< span class="wpex-readmore-rarr"> & rarr; < /span> < /a> '; // Check for more tag and return content if it exists if ( strpos( $post-> post_content, '< !--more--> ' ) ) { $output = get_the_content( '' ); }// No more tag defined so generate excerpt using wp_trim_words else {// Generate excerpt $output = wp_trim_words( strip_shortcodes( get_the_content( $post-> ID ) ), $length ); // Add readmore to excerpt if enabled if ( $readmore == true ) { $output .= apply_filters( 'wpex_readmore_link', $readmore_link ); }}}// Apply filters and echo echo apply_filters( 'wpex_excerpt', $output ); }

#1我已经为你编辑过：

** * Custom excerpts based on wp_trim_words * Created for child-theming purposes * * @linkhttp://codex.wordpress.org/Function_Reference/wp_trim_words * @since 1.0.0 */ function wpex_excerpt( $length = 45, $readmore = false ) {// Get global post data global $post; $max_characters = 40; // Check for custom excerpt if ( has_excerpt( $post-> ID ) ) { $output = mb_strimwidth($post-> post_excerpt, 0, $max_characters, '...'); }// No custom excerpt...so lets generate one else {// Redmore text $readmore_text = get_theme_mod( 'entry_readmore_text', esc_html__( 'read more', 'today' ) ); // Readmore link $readmore_link = '< a href="'. get_permalink( $post-> ID ) .'" title="'. $readmore_text .'"> '. $readmore_text .'< span class="wpex-readmore-rarr"> & rarr; < /span> < /a> '; // Check for more tag and return content if it exists if ( strpos( $post-> post_content, '< !--more--> ' ) ) { $output = mb_strimwidth(get_the_content( '' ), 0, $max_characters, '...'); }// No more tag defined so generate excerpt using wp_trim_words else {// Generate excerpt $output_to_trim = wp_trim_words( strip_shortcodes( get_the_content( $post-> ID ) ), $length ); $output = mb_strimwidth($output_to_trim, 0, $max_characters, '...'); // Add readmore to excerpt if enabled if ( $readmore == true ) { $output .= apply_filters( 'wpex_readmore_link', $readmore_link ); }}}// Apply filters and echo echo apply_filters( 'wpex_excerpt', $output ); }

你可以通过更改$ max_characters变量中的数字来更改此代码中的最大字符数。
我使用了mb_strimwidth()函数并将其返回到$ output变量：https://secure.php.net/manual/pl/function.mb-strimwidth.php
通过示例, 你应该了解发生了什么：