wordpress function the_excerpt แสดงกำหนดจำนวนคำ

เขียน function ลงในไฟล์ function.php
function excerpt($count) {
  $excerpt = explode(' ', get_the_excerpt(), $count);
  if (count($excerpt)>=$count) {
    array_pop($excerpt);
    $excerpt = implode(" ",$excerpt).'...';
  } else {
    $excerpt = implode(" ",$excerpt);
  }
  $excerpt = preg_replace('`\<<^\>>*\>`','',$excerpt);
  return $excerpt;
}

เวลาใช้ก็ใช้แบบนี้
<?php echo excerpt(xx); ?>


xx คือจำนวนคำที่ต้องการแสดงออกมา

วิธีอื่นๆ
function get_excerpt(){
$excerpt = get_the_content();
$excerpt = preg_replace(" (\<.*?\>)",'',$excerpt);
$excerpt = strip_shortcodes($excerpt);
$excerpt = strip_tags($excerpt);
$excerpt = substr($excerpt, 0, 40);
$excerpt = substr($excerpt, 0, strripos($excerpt, " "));
$excerpt = trim(preg_replace( '/\s+/', ' ', $excerpt));
$excerpt = $excerpt.'... <a href="'.$permalink.'">more</a>';
return $excerpt;
}

เวลาใช้
<?php echo get_excerpt(); ?>

$excerpt = substr($excerpt, 0, 40); = 40 คือจำนวนตัวอักษรที่ต้องการให้แสดง

หรือ
function excerpt($limit) {
  $excerpt = explode(' ', get_the_excerpt(), $limit);
  if (count($excerpt)>=$limit) {
    array_pop($excerpt);
    $excerpt = implode(" ",$excerpt).'...';
  } else {
    $excerpt = implode(" ",$excerpt);
  }
  $excerpt = preg_replace('`\<<^\>>*\>`','',$excerpt);
  return $excerpt;
}

function content($limit) {
  $content = explode(' ', get_the_content(), $limit);
  if (count($content)>=$limit) {
    array_pop($content);
    $content = implode(" ",$content).'...';
  } else {
    $content = implode(" ",$content);
  }
  $content = preg_replace('/\<.+\>/','', $content);
  $content = apply_filters('the_content', $content);
  $content = str_replace('>>>', '>>&gt;', $content);
  return $content;
}

<?php echo excerpt(25); ?>

หรือ
function get_excerpt($count){
  $permalink = get_permalink($post->ID);
  $excerpt = get_the_content();
  $excerpt = strip_tags($excerpt);
  $excerpt = substr($excerpt, 0, $count);
  $excerpt = substr($excerpt, 0, strripos($excerpt, " "));
  $excerpt = $excerpt.'... <a href="'.$permalink.'">more</a>';
  return $excerpt;
}

<?php echo get_excerpt(125); ?>