note 54091 deleted from function.preg-match by colder
| From: | colder@php.net | Date: | Mon, 18 Jun 2007 18:23:21 +0000 |
| Subject: | note 54091 deleted from function.preg-match by colder | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-127605@lists.php.net to get a copy of this message | ||
Note Submitter: tom at depman dot com
----
There have been several examples of abbreviating strings or an ellipse function like some may call
it. Of course I couldn't find any until after I wrote this, so thought I'd share with you.
Basically what this does is takes a long string (like a TEXT from MySQL) and shortens it to give a
quick display of the text. But instead of chopping it in the middle of the word it looks for a
period or a space using preg_match and chops there. Hope this helps someone.
<?php
// the maximum length of characters of text to display
$MAX_LEN = 50;
$text_to_display = "Connect to a MySQL database or get
some other source for a long string you'd like
to display but don't want to chop the words in half";
/*
check to see if the text is longer than our wanted length
and if so find the last word less than the $MAX_LEN
and display the string up to that last word.
If youre using PHP version 4.3 or above you may need to
specify PREG_OFFSET_CAPTURE to get the preg_match to work.
*/
function abreviated_text( $text_to_display, $MAX_LEN=30 ){
if ( strlen($text_to_display) > $MAX_LEN ){
preg_match ( "/.* /", substr($text_to_display,0,$MAX_LEN), $found );
$text_to_display_abr = substr("{$found[0]}",0,-1);
}
// if abreviation took place
if ( $text_to_display_abr )
// do something special like add a <a href=""> tag
return $text_to_display_abr."...";
else
// simply display the text if it does not exceed the length
return $text_to_display;
}
// use as
echo abreviated_text($text_to_display,$MAX_LEN);
/*
prints out:
Connect to a MySQL database or get some other...
instead of:
Connect to a MySQL database or get some other sour...
*/
?>