Easy question about PHP
<p>i have an android app, that connects to a remote DB with PHP. OK, i have it done and working, but i need something special.</p>

<p>I need to pass one parameter more to each PHP, and in the PHP code, i need to check if this extra parameter is equal to this word "sea", and only if it is equal, my php will do the remote DB querys. ¿why i want to do this? to make more safe my php codes, because they can be accesed by internet, but i want to add this extra parameter to certificate that only my app will do querys to the DB, because only my app knows this extra parameter "sea".</p>

<p>but i dont know how to do it, because my skills on PHP are null (the phps of my app are done by a friend)</p>

<p>can someone complete my code with the check i need? the parameter name will be "app_password" and the correct value of the parameter will be "sea"</p>

<p>this is my php code where i need the comprobation:</p>

<pre><code>&lt;?php

$link =mysql_connect(("theip","theuser","thepass"););
mysql_select_db("pervasive_locations", $link );

$q=mysql_query("Delete From permission Where 
fk_email1='".$_REQUEST['email1']."' and 
fk_email2='".$_REQUEST['email2']."'",$link );


while($e=mysql_fetch_assoc($q))
        $output[]=$e;

print(json_encode($output));

mysql_close($link);

?&gt;
</code></pre>
