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    <p>Use <a href="http://php.net/file_exists" rel="nofollow noreferrer"><code>file_exists()</code></a> function to check if a file exists:</p> <pre><code>if($_FILES['myprofilepicture']['type'] != 'image/jpeg' &amp;&amp; $_FILES['photo']['type'] != 'image/jpg' &amp;&amp; $_FILES['photo']['type'] != 'image/png') { header("location: wrongfile.php"); } else { $info = pathinfo($_FILES['photo']['name']); $randomfile = substr(str_shuffle("abcdefghijklmnopqrstuvwxyz0123456789"),0,$length); $target = 'picture/'.$randomfile; if(!file_exists($target)) //if file doesn't exist { $now = time(); move_uploaded_file( $_FILES['myprofilepicture']['tmp_name'], $target); mysql_query("Insert into photos(name,photo,date)values('$myname','$randomfile','$now')")or die('database error occured'); header("location:home.php"); } } </code></pre> <p>The <code>if</code> conditional statement in the above piece of code will check if the file already exists, and if not, execute the statements in the block. However, if you want to repeat the process until a unique file path is found, you can use a loop instead:</p> <pre><code>while(!file_exists($target)) { # code ... } </code></pre> <hr> <p>As a sidenote: you're currently inserting user input directly into your SQL query. This is a very bad practice and it makes your query vulnerable to <a href="https://stackoverflow.com/questions/60174/how-can-i-prevent-sql-injection-in-php?rq=1">SQL injection</a>. You should stop using the deprecated <code>mysql_*</code> functions and start using PDO or MySQLi.</p>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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