Truncate Variable

[rogersnm]

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]

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

[rogersnm]

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]

Yes (but no quotes needed around $str).

[rogersnm]

ok but what about the second bit?

[Paul M]

Second bit ?

[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?

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]

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]

You have to assign the substr to something.

$var = substr(.....)