get XHTML map area coords using PHP
I am having trouble getting the attributes from within an Area Map example below
<area shape="poly" class="areaSelect" coords="475,241,495,220,515,215,531,226,534,262,530,290,493,307,472,287" href="http://www.someURL" title="Area Title" alt="Link Title"/>
I have been using simple_html开发者_StackOverflow_dom.php to retrieve other elements from the page. Any help would be greatly appreciated. As I have been going around and around on this I did try using Xpath and loading the XHTML file but when I tried to get the coords I only got 42 cases of "DOMAttr Object ()" there is 42 areas on the map but...... help!
Ok I'll try and give as much details as I can for anyone else who wants to do something similar.
Here is a quick example file.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style>
body{font:Arial, Helvetica, sans-serif;}
</style>
</head>
<body>
<div class="title" style="font-size: 14px; color: #009"><h2>Get any information</h2> </div>
<div id="image-holder">
<img src="http://mrg.bz/sb3gG9" alt="microchips" width="496px" height="343px" border="0" usemap="#MicroChips"/>
<map name="MicroChips" id="MicroChips2">
<area class="areaSelect" shape="poly" coords="46,91,157,43,217,106,101,159" href="http://www.someplace.com" title="Main Chip" alt="Main Chip" />
</map>
<div id="body" style="width:496px">
<p>This is to demonstrate how to get as much out of a file as possible. Well a least some of it anyway.</p>
<p>Here is another paragraph to show how to get multiple items</p>
</div>
</div>
</body>
</html>
Ok now here is the php. You will need to download 'PHP Simple HTML DOM Parser' and load it onto your test server. so that you can access the additional functions.
<?php
include('simple_html_dom.php'); //Load/include the PHP Simple HTML DOM Parser
$html = file_get_html('http://www.YourServer.com/test.html'); // Load your html file
// create a series of variables to call on later
$imgtitle = $html->find('div.title', 0)->plaintext; //here we reference the HTML file, and find the div with the class "title" and display it as plaintext
// ok for some reason and hopefully someone out there can add why
// I had to reference the fist instance of each element here
// referenced as the ',0' in each case.
// here you can see we search for the div 'image-holder'
// and then search in that div for the first image and save it to a variable
$imageurl = $html->find('#image-holder',0)->find('img',0);
// here we target the image scr, width, height, style, alt, border and usemap and assign them to variables
$imagesrc = $imageurl->src;
$imageWidth = $imageurl->width;
$imageHeight = $imageurl->height;
$imageStyle = $imageurl->style;
$imageAlt = $imageurl->alt;
$imageBrd = $imageurl->border;
$imageUsemap = $imageurl->usemap;
$map = $html->find('map',0); // here we look for the map and assign it to a variable
// here we target the map ID and Name and usemap and assign them to variables
$mapID = $map->id;
$mapName = $map->name;
// we assigned a class to the map areas to find them easier
$imgmaparea = $html->find('.areaSelect');
// ok although the example only has one map area this will find multiple
// areas and print them on the screen using the 'foreach' function
foreach ($imgmaparea as $value){
$areaShape = $value->shape;
$areaCoords = $value->coords;
$areaHref = $value->href;
$areaTitle = $value->title;
$areaAlt = $value->alt;
// print them on the screen
echo 'Shape: '.$areaShape. '<br>';
echo 'Coords: '.$areaCoords. '<br>';
echo 'Href: '.$areaHref. '<br>';
echo 'Title: '.$areaTitle. '<br>';
echo 'Alt: '.$areaAlt. '<br>';
}
// print them on the screen
echo 'name: '.$mapName. '<br>';
echo 'Id: '.$mapID. '<br>';
echo 'filename: '.$filename. '<br>';
echo 'Src: '.$imagesrc. '<br>';
echo 'Width: '.$imageWidth. '<br>';
echo 'Height: '.$imageHeight. '<br>';
echo 'Style: '.$imageStyle. '<br>';
echo 'Alt: '.$imageAlt. '<br>';
echo 'Usemap: '.$imageUsemap. '<br>';
?>
I have tried to explain thoroughly but if anyone has any further questions or suggestions I would be happy to here them
加载中,请稍侯......
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