PHP short_open_tag = On should not be used

After a fresh installation you could find that PHP short_open_tag disabled by default in php.ini file.

 

You can check by using phpinfo() PHP function.

Under PHP Core setting you can find as below

 

Directive Local Value Master Value
short_open_tag Off Off

 

If “short_open_tag” is found off in your php.ini file then you cannot use short form (<? ?>) of PHP’s open tag and you must use long form of PHP tags (<?php ?>) instead, otherwise any PHP code inside these tags will not be parsed as PHP.

 

Drawback of PHP short_open_tag if you have enabled.

 

1) Setting this value to off allows for easier use alongside XML by providing the ability to use <?xml ?> inline without having to print it with PHP echo ‘<?xml version=”1.0″?>’; ?>.

 

With the wide spread use of XML(SOAP, XMLRPC, REST-XML) and use of these tags by other languages, the server can become easily confused and end up parsing the wrong code in the wrong context. But because this short cut has been a feature for such a long time, it’s currently still supported for backwards compatibility, but it’s recommend you don’t use them.

 

2) All the standard library use <?php ?>, full php tags so we can say it’s a standard, if you are open source script (distributable or portable script) writer or have PHP open sources community member then it’s always recommended to use full tag instead of short_tag as by default PHP have it disabled in php.ini settings.

 

3) Due to security reasons in some extent it’s advised to not to use short_open_tag.

 

If you still want to use short_open_tag or if you have just entered in a large application that is previously build by any other developer and he have used short_tags in many places, but your you php setting is was disabled then you should enabled short_open_tag, let me tell how you should do this quickly.

 

1) Open you root’s .htaccess file and add the following in that

[sourcecode language=”plain”]php_flag short_open_tag on[/sourcecode]

or

[sourcecode language=”plain”]php_value short_open_tag 1[/sourcecode]

 

2) If you php.ini access and can update any php directive and setting then open php.ini file and change
short_open_tag = Off to short_open_tag = On

It’s always advised to start Apache services after any changes in php.ini settings.

 

3)

[php] ini_set( "short_open_tag", 1 ); [/php]

will not work, if you are trying to do as it (short_open_tag) is marked as PHP_INI_PERDIR in PHP < 5.3.0, which means you can’t change it with ini_set(). You can check this by below link.

 

Description of core php.ini directives

 

 

Advantages: Let Google Host jQuery For Your Website

Most of us (Web Developer) use JQuery during the development, if you are not aware about the jQuery or interested in any other JavaScript Library then below is just a very quick overview about the jQuery.

 

jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. With a combination of versatility and extensibility, jQuery has changed the way that millions of people write JavaScript.”

 

Well, how you include that in your file, generally as below.

[code lang=”js”]<script type="text/javascript" src="/js/jQuery.1.8.x.min.js"></script>[/code]

 

We all know that the load of JavaScript directly affect the site page load time and Obviously on SEO. Then how to get rid by jQuery?
No worries, you know as usual Google always help us so let Google host jQuery for your website.

 

You can let Google AJAX Libraries CDN (content delivery network) serve jQuery directly from Google’s network as below.
There are three main benefits of doing this is Decreased latency, Increased parallelism and Better caching that directory affect you site page load.

 

You should use/include JQuery as below

[code lang=”js”]<script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>[/code]

 

Benefits of Google CDN Networks(Google hosted JavaScript Libraries)

 

Decreased Latency
A Content Delivery Network (CDN) distributes static content across various servers, diverse physical locations worldwide. When a user visits a page serving files from a CDN, their download will automatically target the closest available server in the network which can reduce download times.

 

Increased Parallelism
All browsers limit the number of connections that can be made simultaneously. Depending on which browser, this limit may be as low as two connections per hostname.
Using the Google AJAX Libraries CDN eliminates one request to your site, allowing more of your local content to be downloaded in parallel.

 

Better Caching
When a user visits a site, their browser will download static files so that when the user visits that page the files will not have to be downloaded again, saving bandwidth usage, server load.
Google AJAX Libraries CDN is that your users may not need to download jQuery at all.

 

If you’re curious why the <script> reference is missing the leading http:, It’s a trick which allows you to use a single reference that works on both HTTP and HTTPS pages.

 

“Protocol-less” URL is the best way to reference third party content that’s available via both HTTP and HTTPS.