Good job!
However, let me give a few suggestions to optimize the code
function trim_text($text, $count)
{
$text = str_replace(" ", " ", $text);
/*
* This is redundant; you are replacing all " " in $text with " "
* maybe you meant
* $text = trim($text); ?
*/
$string = explode(" ", $text);
/*
* For better programming practice, you should initialize $trimed
* I believe if you turn on error_reporting for all in php.ini
* PHP will display all warnings and errors.
*/
for ( $wordCounter = 0; $wordCounter <= $count;wordCounter++ )
/*
* Typo - you forgot the $ for wordCounter++
*
* for ( $wordCounter = 0; $wordCounter <= $count; $wordCounter++)
*/
{
$trimed .= $string[$wordCounter];
if ( $wordCounter < $count )
{
$trimed .= " ";
}
else
{
$trimed .= "...";
}
}
$trimed = trim($trimed);
return $trimed;
}
This is purely my suggestion... and I'm not saying it is better... but
if I were you, I'd do it this way :
function trim_text($text, $count)
{
$text = trim($text);
$string = explode(" ", $text);
$trimed='';
for ( $wordCounter = 0; $wordCounter <= $count; $wordCounter++ )
{
$trimed .= $string[$wordCounter].' ';
}
$trimed = trim($trimed);
if (count($string)>$count)
$trimed.='...';
return $trimed;
}
The only difference(not that you'd notice in a lightweight routine like
this) is that, I don't have that if-else block inside the loop.
Danny wrote:
Finally i found it (Google is god, you only have to ask the right question)
function trim_text($text, $count){
$text = str_replace(" ", " ", $text);
$string = explode(" ", $text);
for ( $wordCounter = 0; $wordCounter <= $count;wordCounter++ ){
$trimed .= $string[$wordCounter];
if ( $wordCounter < $count ){ $trimed .= " "; }
else { $trimed .= "..."; }
}
$trimed = trim($trimed);
return $trimed;
}
Usage
------------------------------------------------
$string = "one two three four";
echo trim_text($string, 3);
---------- Forwarded message ----------
From: Danny <[EMAIL PROTECTED]>
Date: Oct 29, 2005 1:36 PM
Subject: Substr by words
To: php-general@lists.php.net
Hi,
I need to extract 50 words more or less from a description field. How can i
do that?. Substr, cuts the words. Is there any other way to that, without
using and array? I mean and implemented function in PHP 4.x
I´ve been googling around, but wordwrap, and substr is driving me mad...
Thanks in advance
Best Regards
--
dpc
--
dpc
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