php check if a image file name end is not .jpg, .jpeg, .png or .gif.
mime-types, php, regex
Solution
You can try like this
$type=Array(1 => 'jpg', 2 => 'jpeg', 3 => 'png', 4 => 'gif'); //store all the image extension types in array
$imgname = ""; //get image name here
$ext = explode(".",$imgname); //explode and find value after dot
if(!(in_array($ext[1],$type))) //check image extension not in the array $type
{
//your code here
}
Problem
I tried to save web image to local, I use code here to make a judge, if image file name end is not .jpg, .jpeg, .png or .gif, add them. I use `stripos`, but I meet some trouble when an image url like this. So how to solve? Thanks. ``` $webimage = 'http://pcdn.500px.net/5953805/d0dd841969187f47e8ad9157713949b4b95b3bda/4.jpg?1333782904356'; $pieces = explode("/", $webimage); $pathend = end($pieces); $imageinfo = @getimagesize($webimage); $imagetype= $imageinfo['mime']; if($imagetype=='image/jpeg'){ if(stripos($pathend,'.jpg')==0){ $newpathend = $pathend.'.jpg'; // if image end is't '.jpg', add '.jpg' }else if(stripos($pathend,'.jpeg')==0){ $newpathend = $pathend.'.jpeg'; // if image end is't '.jpg', add '.jpeg' }else{ $newpathend = $pathend;// if image end is '.jpg' or '.jpeg', do not change } } if($imagetype=='image/png'){ if(stripos($pathend,'.png')==0){ $newpathend = $pathend.'.png'; // if image end is't '.png', add '.png' }else{ $newpathend = $pathend;// if image end is '.png', do not change } } if($imagetype=='image/gif'){ if(stripos($pathend,'.gif')==0){ $newpathend = $pathend.'.gif'; // if image end is't '.gif', add '.gif' }else{ $newpathend = $pathend;// if image end is '.gif', do not change } } ```