No need to use string functions. You can use something that&#39;s actually designed for what you want: [`pathinfo()`][1]:

    $path = $_FILES[&#39;image&#39;][&#39;name&#39;];
    $ext = pathinfo($path, PATHINFO_EXTENSION);


  [1]: http://php.net/manual/en/function.pathinfo.php

This will work as well:

    $array = explode(&#39;.&#39;, $_FILES[&#39;image&#39;][&#39;name&#39;]);
    $extension = end($array);

A better method is using strrpos + substr (faster than explode for that) :

    $userfile_name = $_FILES[&#39;image&#39;][&#39;name&#39;];
    $userfile_extn = substr($userfile_name, strrpos($userfile_name, &#39;.&#39;)+1);

But, to check the type of a file, using mime_content_type is a better way :
http://www.php.net/manual/en/function.mime-content-type.php

You could try with this for mime type

    $image = getimagesize($_FILES[&#39;image&#39;][&#39;tmp_name&#39;]);
`$image[&#39;mime&#39;]` will return the mime type.

This function doesn&#39;t require GD library. You can find the documentation [here][1].

This returns the mime type of the image.

Some people use the `$_FILES[&quot;file&quot;][&quot;type&quot;]` but it&#39;s not reliable as been given by the browser and not by PHP.

You can use `pathinfo()` as ThiefMaster suggested to retrieve the image extension.

First make sure that the image is being uploaded successfully while in development before performing any operations with the image.


  [1]: http://php.net/manual/en/function.getimagesize.php

How about 

    $ext = array_pop($userfile_extn);



I can&#39;t seem to get any search results that explain how to do this.

All I want to do is be able to know if a given path is a file or a directory (folder).

Node.js check if path is file or directory

I&#39;ve spent a few months trying to grasp the concepts behind WCF and recently I&#39;ve developed my first WCF service application. 
 
I&#39;ve struggled quite a bit to understand all the settings in the config file.  
I am not convinced about the environment but it seems that you can do amazing stuff with it.  

The other day I&#39;ve found out that Microsoft has come out with a new thing called **ASP.NET Web API**.  

For what I can read it&#39;s a **RESTful framework**, very easy to use and implement.  

Now, I am trying to figure out what are the main differences between the 2 frameworks and if I should try and convert my *old* WCF service application with the new API.

Could someone, please, help me to understand the differences and usage of each?

WCF vs ASP.NET Web API

I wish to get the file extension of an image I am uploading, but I just get an array back. 

    $userfile_name = $_FILES[&#39;image&#39;][&#39;name&#39;];
    $userfile_extn = explode(&quot;.&quot;, strtolower($_FILES[&#39;image&#39;][&#39;name&#39;]));

Is there a way to just get the extension itself?


How to get the file extension in PHP?

I wish to get the file extension of an image I am uploading, but I just get an array back.
<pre><code class="hljs language-ini">$userfile_name = $_FILES['image']['name'];
$userfile_extn = explode(".", strtolower($_FILES['image']['name']));
</code></pre>
Is there a way to just get the extension itself?

I noticed that you can&#39;t have abstract constants in PHP.

Is there a way I can force a child class to define a constant (which I need to use in one of the abstract class internal methods) ?

Abstract constants in PHP - Force a child class to define a constant

Is it possible to generate a single entity from database using the Symfony2 console tool?

In the middle of coding I had to add a table and there are modifications made to the existing entity classes. So I don&#39;t want all my entities regenerated. 

Any suggestions will be appreciated!

Generating a single Entity from existing database using symfony2 and doctrine

I&#39;m using phpmailer on my website and to help with spam issues I have created a mailbox to send these emails from (using SMTP).

I have set the emails to come **from** the mailbox address and then I have added a **reply to** address for where I want the replies to go to:

    $mail = new PHPMailer();
   
    $mail-&gt;IsSMTP();
    $mail-&gt;SMTPAuth   = true;
    $mail-&gt;SMTPSecure = &#39;tsl&#39;;
    $mail-&gt;SMTPDebug  = 1;
    $mail-&gt;Host       = EMAIL_HOST;
    $mail-&gt;Port       = EMAIL_PORT;
    $mail-&gt;Username   = EMAIL_USER;
    $mail-&gt;Password   = EMAIL_PASS;

    $mail-&gt;SetFrom(&#39;mailbox@email.com&#39;, &#39;Mailbox name&#39;);
    $mail-&gt;AddReplyTo(&#39;replyto@email.com&#39;, &#39;Reply to name&#39;);
    $mail-&gt;AddAddress(&#39;user@email.com&#39;, &#39;User name);

The emails send successfully and seem to get through the spam filters ok, **but when I press reply it includes both the mailbox account and the reply to account**.

Is this what is meant to happen?  I only want the reply to address to appear when you press reply.  Is this even possible?

Many thanks in advance for any help offered!


----------

**Edit:**

Looking at the email headers it seems like the from address is getting included in the reply to field.  I have no idea why!

    Date: Tue, 1 May 2012 11:16:25 +0100
    To: User name &lt;user@email.com&gt;
    From: Mailbox name &lt;mailbox@email.com&gt;
    Reply-to: Mailbox name &lt;mailbox@email.com&gt;, Reply to name &lt;replyto@email.com
    Subject: Email subject
    Message-ID: &lt;54c530c0d1f3ff33fc87c4c41c2c9ffd@localhost&gt;
    X-Priority: 3
    X-Mailer: PHPMailer 5.1 (phpmailer.sourceforge.net)
    MIME-Version: 1.0
    Content-Type: multipart/alternative;
         boundary=&quot;b1_54c530c0d1f3ff33fc87c4c41c2c9ffd&quot;
    
    --b1_54c530c0d1f3ff33fc87c4c41c2c9ffd
    Content-Type: text/plain; charset = &quot;iso-8859-1&quot;
    Content-Transfer-Encoding: 8bit

phpmailer: Reply using only &quot;Reply To&quot; address

I&#39;ve created my own service and I need to inject doctrine EntityManager, but I don&#39;t see that `__construct()` is called on my service, and injection doesn&#39;t work. 

Here is the code and configs:

    &lt;?php

    namespace Test\CommonBundle\Services;
    use Doctrine\ORM\EntityManager;

    class UserService {
    
        /**
         *
         * @var EntityManager 
         */
        protected $em;
    
        public function __constructor(EntityManager $entityManager)
        {
            var_dump($entityManager);
            exit(); // I&#39;ve never saw it happen, looks like constructor never called
            $this-&gt;em = $entityManager;
        }
    
        public function getUser($userId){
           var_dump($this-&gt;em ); // outputs null  
        }
    
    }

Here is `services.yml` in my bundle

    services:
      test.common.userservice:
        class:  Test\CommonBundle\Services\UserService
        arguments: 
            entityManager: &quot;@doctrine.orm.entity_manager&quot;
    
I&#39;ve imported that .yml in `config.yml` in my app like that

    imports:
        # a few lines skipped, not relevant here, i think
        - { resource: &quot;@TestCommonBundle/Resources/config/services.yml&quot; }

And when I call service in controller

        $userservice = $this-&gt;get(&#39;test.common.userservice&#39;);
        $userservice-&gt;getUser(123);

I get an object (not null), but `$this-&gt;em` in UserService is null, and as I already mentioned, constructor on UserService has never been called

One more thing, Controller and UserService are in different bundles (I really need that to keep project organized), but still: everyting else works fine, I can even call

    $this-&gt;get(&#39;doctrine.orm.entity_manager&#39;)

in same controller that I use to get UserService and get valid (not null) EntityManager object.

Look like that I&#39;m missing piece of configuration or some link between UserService and Doctrine config.

Symfony 2 EntityManager injection in service

I have a table called products with primary key `Id`. I want to select all items in the table. This is the code is I&#39;m using:

    $batch_get_response = $dynamodb-&gt;batch_get_item(array(
        &#39;RequestItems&#39; =&gt; array(
            
            &#39;products&#39; =&gt; array(
                &#39;Keys&#39; =&gt; array(
                    array( // Key #1
                        &#39;HashKeyElement&#39;  =&gt; array( AmazonDynamoDB::TYPE_NUMBER =&gt; &#39;1&#39;),
                        &#39;RangeKeyElement&#39; =&gt; array( AmazonDynamoDB::TYPE_NUMBER =&gt; $current_time),
                    ),
                    array( // Key #2
                        &#39;HashKeyElement&#39;  =&gt; array( AmazonDynamoDB::TYPE_NUMBER =&gt; &#39;2&#39;),
                        &#39;RangeKeyElement&#39; =&gt; array( AmazonDynamoDB::TYPE_NUMBER =&gt; $current_time),
                    ),
                )
            )
        )	
    ));

Is it possible to select all items without specifying the primary key? I&#39;m using the AWS SDK for PHP.

How can I fetch all items from a DynamoDB table without specifying the primary key?

I&#39;m wondering what the difference between .phtml and .php files is, and when to use one over the other.

What is phtml, and when should I use a .phtml extension rather than .php?

I know that, if I wanted to grep for a pattern only on files with certain extensions, I could do this:

    // searches recursively and matches case insensitively in only javascript files
    // for &quot;res&quot; from the current directory
    grep -iIr --include=*.js res ./

I&#39;ve been trying to search for a way to do this via git grep as well (to take advantage of git grep&#39;s speed from the indexes it stores with its tree), but to no avail. I saw [here][1] that excluding certain file types is not possible.


  [1]: http://git.661346.n2.nabble.com/git-grep-while-excluding-files-in-a-blacklist-td7195648.html

git grep by file extensions

I have a directory full of files with one extension (.txt in this case) that I want to automatically convert to another extension (.md).

Is there an easy terminal one-liner I can use to convert all of the files in this directory to a different file extension?

Or do I need to write a script with a regular expression?



Changing file extensions for all files in a directory on OS X

I often use `JPEG` images, and I have noticed that there are two very similar file extensions: `.jpg`, which my mobile&#39;s camera and the _Preview_ application use, and `.jpeg`, with which _Image Capture_ saves the images from scanning with my _Canon MX455_ printer. _LaTeX_ doesn&#39;t seem to distinguish, as I gave it a `.jpeg` with the extension changed to `.jpg` and the result seems to be the same as if it had been a `.jpg` right from the start. I have wondered what the difference between the two is. I have come across [this question](https://stackoverflow.com/questions/419584/what-is-the-difference-between-jpg-jpeg-png-bmp-gif-tiff-i), and will certainly read through it, though at the moment I&#39;m slightly out of time. However, from what I saw giving it a quick look, it seems not to distinguish the two extensions. In fact, it seems the file type&#39;s name is `JPEG` and the file extension is `.jpg`:

&gt;JPEG (or JPG, for the file extension; Joint Photographic Experts Group)

(excerpted from the first answer there). So is there any big difference between the two extensions? And if so, what is it?

JPG vs. JPEG image formats

I&#39;d like to find all *.html files in src folder and all its sub folders using nodejs. What is the best way to do it? 

    var folder = &#39;/project1/src&#39;;
    var extension = &#39;html&#39;;
    var cb = function(err, results) {
       // results is an array of the files with path relative to the folder
       console.log(results);

    }
    // This function is what I am looking for. It has to recursively traverse all sub folders. 
    findFiles(folder, extension, cb);

I think a lot developers should have great and tested solution and it is better to use it than writing one myself. 




Content Type	Original Author	Original Content on Stackoverflow
Question	Keith Power	View Question on Stackoverflow
Solution 1 - Php	ThiefMaster	View Answer on Stackoverflow
Solution 2 - Php	Andrey	View Answer on Stackoverflow
Solution 3 - Php	Julien	View Answer on Stackoverflow
Solution 4 - Php	Balan	View Answer on Stackoverflow
Solution 5 - Php	ilanco	View Answer on Stackoverflow

How to get the file extension in PHP?

Php Problem Overview

Php Solutions

Solution 1 - Php

Solution 2 - Php

Solution 3 - Php

Solution 4 - Php

Solution 5 - Php

WCF vs ASP.NET Web API

Node.js check if path is file or directory

Attributions