How to truncate text / cut off text at certain length

err0r — Wed, 23 Jul 2008 18:52:51 +0000

I ran across this php script while searching for ways to repair my truncation script. I was having a bit of trouble with break tags being cut off and messing up the site validation. I used the idea from this script to fix that. Hope it helps others.

 function truncate($text,$numb) {

$text = html_entity_decode($text, ENT_QUOTES);

if (strlen($text) &gt; $numb) {

$text = substr($text, 0, $numb);

$text = substr($text,0,strrpos($text," "));

//This strips the full stop:

if ((substr($text, -1)) == ".") {

$text = substr($text,0,(strrpos($text,".")));

}

$etc = "…";

$text = $text.$etc;

}

$text = htmlentities($text, ENT_QUOTES);

return $text;

}

//Call function

truncate($text, 75);

?>

Code: ToolTips

err0r — Thu, 19 Jun 2008 07:11:21 +0000

Curious about TG’s popup tool tip info? This is how we do it. This is a JS code from one of our favorite sites Dynamic Drive. Of course we have edited to better suit our look and needs. Here is the breakdown.

Put this in the section or in your css file

#dhtmltooltip{

position: absolute;

width: 150px;

border: 2px solid black;

padding: 2px;

background-color: lightyellow;

visibility: hidden;

z-index: 100;

/*Remove below line to remove shadow. Below line should always appear last within this CSS*/

filter: progid  XImageTransform.Microsoft.Shadow(color=gray,direction=135);

}–>;

Now for the Javascript and related coding. Place this somewhere in the body outside of any relative or absolute tags.

<script type="text/javascript">

/***********************************************

* Cool DHTML tooltip script- © Dynamic Drive DHTML code library (www.dynamicdrive.com)

* This notice MUST stay intact for legal use

* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code

***********************************************/

var offsetxpoint=-60 //Customize x offset of tooltip

var offsetypoint=20 //Customize y offset of tooltip

var ie=document.all

var ns6=document.getElementById && !document.all

var enabletip=false

if (ie||ns6)

var tipobj=document.all? document.all["dhtmltooltip"] : document.getElementById? document.getElementById("dhtmltooltip") : ""

function ietruebody(){

return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body

}

function ddrivetip(thetext, thecolor, thewidth){

if (ns6||ie){

if (typeof thewidth!="undefined") tipobj.style.width=thewidth+"px"

if (typeof thecolor!="undefined" && thecolor!="") tipobj.style.backgroundColor=thecolor

tipobj.innerHTML=thetext

enabletip=true

return false

}

}

function positiontip(e){

if (enabletip){

var curX=(ns6)?e.pageX : event.clientX+ietruebody().scrollLeft;

var curY=(ns6)?e.pageY : event.clientY+ietruebody().scrollTop;

//Find out how close the mouse is to the corner of the window

var rightedge=ie&&!window.opera? ietruebody().clientWidth-event.clientX-offsetxpoint : window.innerWidth-e.clientX-offsetxpoint-20

var bottomedge=ie&&!window.opera? ietruebody().clientHeight-event.clientY-offsetypoint : window.innerHeight-e.clientY-offsetypoint-20

var leftedge=(offsetxpoint<0)? offsetxpoint*(-1) : -1000

//if the horizontal distance isn’t enough to accomodate the width of the context menu

if (rightedge<tipobj.offsetWidth)

//move the horizontal position of the menu to the left by it’s width

tipobj.style.left=ie? ietruebody().scrollLeft+event.clientX-tipobj.offsetWidth+"px" : window.pageXOffset+e.clientX-tipobj.offsetWidth+"px"

else if (curX<leftedge)

tipobj.style.left="5px"

else

//position the horizontal position of the menu where the mouse is positioned

tipobj.style.left=curX+offsetxpoint+"px"

//same concept with the vertical position

if (bottomedge<tipobj.offsetHeight)

tipobj.style.top=ie? ietruebody().scrollTop+event.clientY-tipobj.offsetHeight-offsetypoint+"px" : window.pageYOffset+e.clientY-tipobj.offsetHeight-offsetypoint+"px"

else

tipobj.style.top=curY+offsetypoint+"px"

tipobj.style.visibility="visible"

}

}

function hideddrivetip(){

if (ns6||ie){

enabletip=false

tipobj.style.visibility="hidden"

tipobj.style.left="-1000px"

tipobj.style.backgroundColor=”

tipobj.style.width=”

}

}

document.onmousemove=positiontip

// –>

Now just edit your link with the following information.

onMouseover="ddrivetip(‘JavaScriptKit.com JavaScript tutorials’,'yellow’, 300)";

onMouseout="hideddrivetip()"

This is the breakdown of how the code works

ddrivetip(‘TEXT TO DISPLAY’, ‘OPTIONAL BACKGROUND COLOR’, OPTIONAL TIP WIDTH)

Here are some examples of using the code in the links

<a onmouseover="ddrivetip(‘Visit Yahoo.com’)" href="http://www.yahoo.com">

</a> onMouseout="hideddrivetip()">Search Engine

<div onmouseover="ddrivetip(‘This DIV has a tip!’, ‘#EFEFEF’)">

onMouseout="hideddrivetip()">Some text here. Some text here.</div>

<a onmouseover="ddrivetip(‘Yahoo\’s Site’, ‘yellow’, 250)" href="http://yahoo.com">

</a> onMouseout="hideddrivetip()">Yahoo

This is a very helpful and attractive addon for your site. Be sure to leave in the credit for dynamic drive and check out the actual full page devoted to the addon HERE.

PHP: Delete File If Exists

err0r — Mon, 09 Jun 2008 08:45:10 +0000

I ran across this function to delete a file from the server if it exists some time ago. It has been very useful to me.

$DelFilePath = "/home/path/to/file";

if (file_exists($DelFilePath))  { 

unlink($DelFilePath);

} 

?>

PHP: Get File Extension

err0r — Mon, 09 Jun 2008 08:06:38 +0000

There are many ways to get the file extension of a file. Here is an example of a php function I found to do just that.

function file_extension($fname)

{

$path_info = pathinfo($fname);

return $path_info[‘extension’];

}

?>

Another way would be to check the actual string and use what’s after the last slash. I picked this up on a forum I visit.

$filetype = substr($file, strrpos($file, ‘.’) + 1);

?>

TG007 DevBlog » Code

How to truncate text / cut off text at certain length

Code: ToolTips

PHP: Delete File If Exists

PHP: Get File Extension