trim custom field text value and show (...)

Question

I am using this code here:

<?php
$trim_length = 25;  //desired length of text to display
$custom_field = 'my-custom-field-name';
$value = get_post_meta($post->ID, $custom_field, true);
if ($value) {
 echo rtrim(substr($value,0,$trim_length));
}
?>

It works - but I would like to have a "(...)" at the end of the trimmed text. And only if the value really was trimmed.

I used if ($value) { echo rtrim(substr($value,0,$trim_length)) . '(...)'; } ?> But this makes the "(...)" at the end of every text from custom field..

Thank you!

AD

Answer 1

building on keatch's answer you only need to trim if its longer the 25 chars so:

$trim_length = 25;  //desired length of text to display
$custom_field = 'my-custom-field-name';
$value = get_post_meta($post->ID, $custom_field, true);
if ($value) {
    if (strlen($value) > $trim_length)
        $value = rtrim(substr($value,0,$trim_length)) .'(...)';
 echo $value;
}

Answer 2

Try this code.

You must check if the string was trimmed. If it is, is length is $trim_length So, you must add the '(...)' at the end

<?php
$trim_length = 25;  //desired length of text to display
$custom_field = 'my-custom-field-name';
$value = get_post_meta($post->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;
}
?>

Answer 3

Since Wordpress 3.3 there is a built-in function for this : wp_trim_words() which accepts as arguments the number of words and the chain the add if trimmed.

So you could do something like :

 <?php
  $trim_length = 25;  //desired length of text to display
  $value_more = '(...)'; // what to add at the end of the trimmed text
  $custom_field = 'my-custom-field-name';
  $value = get_post_meta($post->ID, $custom_field, true);
   if ($value) {
      echo wp_trim_words( $value, $trim_length, $value_more);
   }
   ?>