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:
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:
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]

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]

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?


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:
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(.....)

[rogersnm]

i have, i realised the problem, i put $post[title] = $postitle rather than the other way around.

it's not actually working, my code is: $posttitle = $post['title'];
$postforumname = $post['forumname'];

if (strlen($posttitle) > 16)
{
substr($posttitle, 0, 17);
$posttitle = $posttitle . "...";

}

if (strlen($postforumname) > 16)
{
substr($postforumname, 0, 17);
$postforumname = $postforumname . "...";
}

$post['title'] = $posttitle;
$post['forumname'] = $postforumname; but all it actually does is add "..." to the end of the string if it is more than 16 characters instead of cutting it to 17 and then adding it on the end.

ah i see it, i didn't put "$var = " before it.