📅  最后修改于: 2022-03-11 14:56:28.811000             🧑  作者: Mango
$trim_length = 100; //desired length of text to display
$custom_field = 'my-custom-field-name';
$value = get_post_meta(get_the_ID(), $custom_field, true);
if ($value) {
$trimmed_value= rtrim(substr($value,0,$trim_length));
if (strlen($trimmed_value) >= $trim_length)
$trimmed_value .= " ...";
echo $trimmed_value;
}