I have a website which is used for ads listings like backpage and craigslist.
I have inserted a Banner Ad on every sidebar on every city: for example the banner image filename is
myimage.jpg
now what I want to happen is: whenever they visit a city (for example mysite.com/boston), I want the filename to be like this:
src="myimage-boston.jpg"
and when they visit
mysite.com/birmingham
the image filename will be
src="myimage-birmingham.jpg"
I'm doing this for SEO purposes. I hope I've explained it well. Thank you in advance :) btw im using codeigniter.
Googlebot couldn't crawl this URL because it points to a non-existent page. Generally, 404s don't harm your site's performance in search, but you can use them to help improve the user experience.
If you can use mod-rewrite, try this rewrite rule in Apache server config .htaccess or httpd.conf (if you have images in /images path):
RewriteRule ^images/(.*)-.*\.jpg$ /images/$1.jpg
After that, you can substitute image src for anything you want:
<img src="/images/<?=$imageName."-".$whateverYouWant.".".jpg";?>" />
And the rewrite module will substitute it for /images/$imageName.jpg
Assign the __CLASS__ magic constant to your view, and you should know wich controler is being called.
more info here:
http://php.net/manual/en/language.constants.predefined.php
its should look like something like this:
$mydata['class'] = strtolower(__CLASS__);
and on your view
src="myimage-<?php echo $class; ?>.jpg"
The solution is simple, use javascript. U can access the URL via document.location. Then say detect the name of city using regex or substring and create image name dynamically.
This can also be done on the server side. But Javascript is better for a job like this.
Related
I've created a page with an article. On top of that there's a title. If people try to click this title I want them to be redirected to the same page.
Like this: https://gyazo.com/74350b4fe91c670c4101449ee1c928a4 If I click on the article it just refreshes the page.
I can't do this manually for every article because I'm using a script.
The code I've written looks like this:
echo ' <h1 class="entry-title">'.$row['postTitle'].'</h1>';
As you can see I wrote
<a href="/">
and that's will not redirect me / refresh the page i'm viewing.
This is how it looks for me: https://gyazo.com/8a15ae274d8a7240b07100395460568d
as you can see it does not redirect me to the same page when i click the title.
How can I do this?
To make your custom PHP blog post template be able to display a title link that points back to the page, one way is to make use of your $row[.... variable.
Provided that,
your URLS will look like your screenshots, such as http://localhost/viewpost.php?id=8 when running locally and for example http://www.yourwebsite.com/viewpost.php?id=8 when online
you know how to refer to the post's id that is used in the ...viewpost.php?id=8, for example $row['postID']
you don't yet have any variable or means to refer to your current domain http://localhost when local or http://www.yourwebsite.com when online
Then, I recommend a two-part approach:
Somewhere at the top of your code, or perhaps in an include you might use for such code-reuse purposes, define for example $host:
$host='http://' . $_SERVER['SERVER_NAME'];
Then, for your actual title link::
echo ' <h1 class="entry-title">' . $row['postTitle'] . '</h1>';
Explanation
Separated HTML from the concatenation dots . with spaces, to be easier to read, as well as to support any helper programs such as fmt that you might use for wrapping long lines, so they have spaces to use for wrapping lines.
Uses PHP's predefined $_SERVER variable's SERVER_NAME , which, combined with the http://, the $host will be http://localhost when local and http://www.yourwebsite.com when online.
Define $host as a variable once at the top of the page, because it is clearer that way and likely you will have a use for it elsewhere on the page, so this helps avoid having to repeat yourself writing 'http://'.$_SERVER['SERVER_NAME'] everywhere else you may need to start forming the absolute URL
$host is then combined with the pattern for the rest of the URL, to assemble the absolute URL
Absolute URL is helpful so that if a user saves your article to their computer, then later clicks the title link on their locally saved article, the user can still correctly reach the original online page
As the article author, setting a link this way also means it can serve as a permalink, which helps with search engine optimization (SEO)
Please use # in href attribute! that will redirect you on the same page.
Problem solved. I used
echo '<h1>'.$row['postTitle'].'</h1>';
Thank you everyone.
I try to design a web in different languages.
How can make the link that gives a clean url? Some pages are dynamic so, I do not know the url, I am searching for a way to make that links work in any page.
I know I can do this because it works in any page:
<a href='?lang=en'>en</a>
<a href='?lang=fr'>fr</a>
But, how to do that and be able to get a clean url like this?:
myDomain/someFolder/file.php // the default in English
myDomain/fr/someFolder/file.php // fr for French
(Beware that it is not just change fr to en. In English there is no /en/)
I have found that I have tu use a rewrite rule in the htaccess to change from myDomain/someFolder/file.php to myDomain/Folder/file.php?lang=en But this is not the point, my question is different, I ask: how to make clean links in the html if I do not know the url?
What I would do, which is not anywhere as fancy as an .htaccess rewrite tool...
First, I would do something to get the current page name. This can be as simple as:
$pagename = "contactme.html";
Now, I have an array of available languages:
$languages = array('en'=>'English','fr'=>'French','es'=>'Spanish');
With that, I can slap this on the top of every page:
Select your language: <?php
foreach($languages as $ln=>$language)
print " <a href='mysite.com/$ln/$pagename'>$ln</a> ";
That will spit out a list of abbreviations. Can they be little flags (a lot of people like those). Sure. Change $ln in the anchor to <img src='$ln.png' border='0'> and make sure you have all the images. Can they be in a form with a select list? Sure. Make a select list. Add an 'onchange' trigger to the form to reload to the correct URL. Can they be is a super-fancy rotating flash animation? Yes - if you really want to do something that silly.
Not sure if this is possible but wanted to know if htaccess has a trick...
Say I have anchor tag href like this -
Click here
I have changed the URL structure using mod_rewrite but wanted to know if i can hide the actual URL in href using htaccess.
i.e when a user hover over the anchor tag, the browser displays http://example.com/index.php?id=12345 at the bottom. All I want the browser to display is http://example.com/index/12345 without changing it manually on all my pages.
Thanks for the help !
Why don't you change the link to the following?
Click here
As you can change the .htaccess I expect that you own or adminstrate this domain. So it should be possible.
If the links are generated by PHP code, then I suggest you to implement and use a translation function like:
function beautify($ugly) {
// your logic comes here
return $nice; // ;)
}
... and wrap it around the existing code that currently outputs the urls. This would have two advantages:
It's easy and more failsafe to migrate to the new url scheme
From now on you have control over all url related code using a single function
I agree, htaccess can't help you. I guess you'll have to change them manually.
I wish I could be of more help
No. htaccess is for processing input to the web server, not data sent back from the server.
If you use jQuery you could have it rewrite the href when the page loads using something like this.
$(function(){
$("a").each(function() {
this.href = 'some_new_url that you made based on the one in this.href';
});
});
I'm having problems with the paths to my first wordpress theme. Post images and stuff not related to css is located in wordpress_folder/blog-images/ and in index.php when I link to images I use this path: blog-images/img.jpg
The problem is now that when I want to link to the same image from another file (not index.php) in this case single.php wich displays one blog post, the correct path is now ../../../blog-images/img.jpg
This is causing problems in the includes like sidebar etc. sidebar.php works fine when called from index.php but the images path is changed if sidebar.php is called from single.php.
Does anyone know what's going on?
If you are creating these links from within php scripts, I would suggest using the site_url() function to get the URL for your wordpress install and then appending your images path to the end of that. If you are editing static theme files like css, then you should use /wordpress_folder/blog_images/img.jpg.
Something like <img src="<?php echo site_url() ?>/blog_images/img.jpg" /> should be sufficient from theme files.
The reason that paths are chaning is because if you are in wordpress_folder then the path blog_images/img.jpg resolves to wordpress_folder/blog_images/img.jpg but if you are on a post that has the url yoursite.com/wordpress_folder/2011/09/category/my_great_post then the path would resolve to wordpress_folder/2011/09/category/blog_images/img.jpg which is obviously incorrect.
For this reason you should try to use the absolute path or full URL so that no matter what file/folder/url you are linking from, the path will always be correct.
The main downside you may run into is that if you were to change the name of your wordpress folder, or remove it altogether, then you may need to make a lot of edits to reflect that. But in any case, you should put the / in front of your path so that it can be referenced the same from everywhere.
Also check out the site_url() reference page, it lists some other helpful functions at the bottom that may be useful to you.
I thought this was a little unclear from drew's answer, so I am adding a little bit more in a separate answer. His advice is sound and I agree with him.
If you prepend a url with a / then it will navigate based on your site url. Without the slash it uses relative navigation.
So here are some examples for www.mydomain.com
//always shows the image located at http://www.mydomain.com/myfolder/pic.png
//no matter what the url is
<img src="/myfolder/pic.png" />
//shows the image located relative to the current path
//if current url is http://www.mydomain.com/posts/ then the image will come from
//http://www.mydomain.com/posts/myfolder/pic.png
<img src="myfolder/pic.png" />
If you are creating links dynamically from php side then you will want to use site_url().
If you are creating links to your theme directory folder then you will want to use bloginfo('template_directory')
I have a php file that loads an article from a db based on the given variables. There is also an .htacces file in the root of the site. I used this in the htaccess to redirect
RewriteRule
^articles/([a-zA-Z0-9-_\s]+).html$
template/index.php?action=viewarticle&alias=$1
after redirecting, the page shows fine but the html in the page goes wrong, for example:
media/2011/02/21/logos.jpg turns in to articles/media/2011/02/21/logos.jpg
This happens because the htacces is redirecting. Is there anyway to do this redirect while keeping the root dir unchanged?
This happens coz the htacces is redirecting.
No, this happens because the browser thinks that
example.com/articles/my_article.html
is a resource in the /articles sub-directory, and treats all relative URLs as relative to /articles.
There is no way to change that behaviour.
You will need to start using absolute image references, or relative image references that consider the additional directory:
<img src="/media/2011/02/21/logos.jpg"> <------ recommended
<img src="../media/2011/02/21/logos.jpg">
you could also use <base> as suggested by #Boris but absolute paths (or full URLs) are a vastly cleaner solution to the problem in my opinion.
First, what do you mean by "html in the pages goes wrong":
Is it the link showed in the status bar?
Is it the actual href? If it is, you probably use some view helper which construct your "base url"
Maybe you "link" your resource without specifing an absolute path (using /), then your resource are "relatively" linked to current page (/articles/)
.htaccess don't change anything in your code.
There is an html element which allow you to define base url used everywhere in your page.
<base href="/root" />
if you have for example Article 12 then when clicking on the link, you will redirect to /root/articles/12
Also, mixing Pekka's answer with Boris', you should define somewhere in your application which is the root path of your application and output all paths as absolute, prepending the base dir you defined earlier.
for example: in config.inc.php
define("ROOT_URI", "http://myserver.com/myapp");
everywhere:
<img src="<?php echo ROOT_URI;?>/media/2011/02/21/logos.jpg
This is like using the base element as Boris suggested, without using it (I also dislike base), and makes your application able to work in whatever folder under the webserver it is stored.