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Dynamically adding hyperlinks

 
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RTAdams89
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Joined: 06 Nov 2005
Posts: 102
PostPosted: Fri Mar 02, 2007 4:16 am    Post subject: Dynamically adding hyperlinks Reply with quote
I am looking for a script (javascript or PHP) that I can insert into one of my web pages that will search the text on the page and add hyperlinks to key words. Anyone know of a script like this?
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abyssisthebest
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Joined: 30 Jun 2005
Posts: 319
Location: Boston, UK
PostPosted: Fri Mar 02, 2007 8:21 pm    Post subject: Reply with quote
you can try and make a php (mysql) database with the words in it with the links, so foe example

key_word and href as the colums

then try a code like

Code:
<?php
mysql_connect("localhost","username","password");
mysql_select_db("db");

$query = mysql_query("SELECT * FROM `links`");

while ($row = mysql_fetch_assoc($query))
{
     $text = str_replace(); // cant rember the syntax...
}

print $text;
?>

that would work but it will need some fine tuning...
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cmxflash
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Joined: 11 Dec 2004
Posts: 872
PostPosted: Fri Mar 02, 2007 8:39 pm    Post subject: Reply with quote
abyssisthebest wrote:
you can try and make a php (mysql) database with the words in it with the links, so foe example

key_word and href as the colums

then try a code like

Code:
<?php
mysql_connect("localhost","username","password");
mysql_select_db("db");

$query = mysql_query("SELECT * FROM `links`");

while ($row = mysql_fetch_assoc($query))
{
     $text = str_replace(); // cant rember the syntax...
}

print $text;
?>

that would work but it will need some fine tuning...


This code would make the word abyss link to Apreliums site:

Code:
<?php
while ($row = mysql_fetch_assoc($query))
{
     $text = str_replace("abyss", "<a href='http://www.aprelium.com'>abyss</a>", $text);
}
?>
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RTAdams89
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Joined: 06 Nov 2005
Posts: 102
PostPosted: Fri Mar 02, 2007 9:23 pm    Post subject: Reply with quote
I was hoping for something non-dependent on SQL. Ideally it would be just a script I could insert into the head of a document and not require any other resources.

I want to be able to define a list like:

mountain = "http://locationofmountain.com"
river = "http://maps.com/river/"

So that when ever "mountain" is found on the page it is hyper linked to http://locationofmountain.com.
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abyssisthebest
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Joined: 30 Jun 2005
Posts: 319
Location: Boston, UK
PostPosted: Sat Mar 03, 2007 11:41 am    Post subject: Reply with quote
thanks, cmxflash...


you could try is as an array....

Code:

$words = array(
                        "areplium" => "http://www.aprelium.com"
                        "my site" => "http://www.shroodoo.co.uk"
                      );

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cmxflash
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Joined: 11 Dec 2004
Posts: 872
PostPosted: Sat Mar 03, 2007 1:07 pm    Post subject: Reply with quote
Here's a simple script that will read the contents of index.txt and replace some keywords with links.

Code:
<?php
$html = file_get_contents("index.txt");

$replace_urls = array(
"abyss",
"jolt",
"cnn"
);

$replace_with = array(
"<a href='http://www.aprelium.com/'>Abyss</a>",
"<a href='http://www.joltcola.com/'>jolt</a>",
"<a href='http://www.cnn.com/'>cnn</a>"
);

$html = str_replace($replace_urls, $replace_with, $html);

echo $html;

?>


array_flip() would probably be useful in such a script to avoid two arrays.
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RTAdams89
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Joined: 06 Nov 2005
Posts: 102
PostPosted: Sat Mar 03, 2007 11:36 pm    Post subject: Reply with quote
That works perfectly. Is there anyway to make it grab the contents of the file it is embedded in though? I would rather this not have to have two separate files.
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pkSML
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Joined: 29 May 2006
Posts: 952
Location: Michigan, USA
PostPosted: Fri Mar 09, 2007 2:04 am    Post subject: Reply with quote
RTAdams89 wrote:
That works perfectly. Is there anyway to make it grab the contents of the file it is embedded in though? I would rather this not have to have two separate files.


Yes. You could put the html in your page as a string.

Code:
$html='the file
goes here
in a
multi-line string';


Just be sure to escape the ' character. Otherwise your script will contain syntax errors.
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