<div>
$type!=&quot;gif&quot; or ($type==&quot;gif&quot;)<br />
is allways true, remove ($type==&quot;gif&quot;) or replace it with<br />
($type!=&quot;png&quot;)
</div>


$type!="gif" or ($type=="gif")
is allways true, remove ($type=="gif") or replace it with
($type!="png")

<div>
You need an AND condition and don't need the $type==&quot;gif&quot;<br />
<br />
<br />
$type=&quot;gif&quot;;<br />
if(($type!=&quot;gif&quot;)&amp;&amp; ($type!=&quot;jpeg&quot;) )<br />
{<br />
echo &quot;You can only upload a photo&quot;;<br />
}
</div>


You need an AND condition and don't need the $type=="gif"


$type="gif";
if(($type!="gif")&& ($type!="jpeg") )
{
echo "You can only upload a photo";
}

<div>
<div class="content wysiwyg-content">
$type=&quot;gif&quot;;<br />
if(($type!=&quot;gif&quot;) || ($type!=&quot;jpeg&quot;) || ($type==&quot;gif&quot;))<br />
{<br />
echo &quot;You can only upload a photo&quot;;<br />
}<br />
<br />
and when i run it i get<br />
You can only upload a photo<br />
why?
</div>
</div>


$type="gif";
if(($type!="gif") || ($type!="jpeg") || ($type=="gif"))
{
echo "You can only upload a photo";
}

and when i run it i get
You can only upload a photo
why?

what is wrong with this statment in php?

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.