vb.org Archive - Truncate Variable

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- - Truncate Variable (https://vborg.vbsupport.ru/showthread.php?t=122808)

rogersnm

08-02-2006 09:13 AM

Truncate Variable

I have searched far and wide but can not find the answer xD

ok, so, how do i truncate (trim) characters off a string so it could have been x characters before but is 10 now?

Regards,
Nick.

Paul M

08-02-2006 09:28 AM

<a href="http://uk.php.net/substr" target="_blank">substr()</a>

rogersnm

08-02-2006 09:31 AM

so:

PHP Code:


		
			
substr($str, 0, 5);

will limit it to 5 characters

is there an if so if it is more than x characers then do this and do this eg:

PHP Code:


		
			
if ($str something)
{
substr($str, 0, 5);
$str = $str . "...";
}

Paul M

08-02-2006 09:36 AM

Yes (but no quotes needed around $str).

rogersnm

08-02-2006 09:44 AM

ok but what about the second bit?

Paul M

08-02-2006 09:51 AM

Second bit ?

rogersnm

08-02-2006 10:01 AM

PHP Code:


		
			
if ($str something)
{
substr($str, 0, 5);
$str = $str . "...";
}

What do i put for if ($str something) to only do that if the string is more than 5 characters long?

Guest190829

08-02-2006 10:30 AM

Quote:

Originally Posted by rogersnm

PHP Code:


		
			
if ($str something)
{
substr($str, 0, 5);
$str = $str . "...";
}

What do i put for if ($str something) to only do that if the string is more than 5 characters long?

PHP Code:


		
			
if (strlen($str) > 5)
{
   //string is greater than 5 chars
}

Also whitespace counts, so you may want to think about trimming the whitespace from the string beforehand. :)

And here is a list of all php string functions, which could come in handy:

http://us2.php.net/manual/en/ref.strings.php

rogersnm

08-02-2006 10:30 AM

thanks :)

ok so i have:

PHP Code:


		
			
if (strlen($posttitle) > 30)
{
substr($posttitle, 0, 30);
$posttitle = $posttitle . "...";
}  

if (strlen($postforumname) > 30)
{
substr($postforumname, 0, 30);
$postforumname = $postforumname . "...";
}

but the variables just show up empty

Paul M

08-02-2006 10:36 AM

You have to assign the substr to something.

$var = substr(.....)

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