Multiple file extensions for uploading

[AquaticDublol]

<?php 

$uploaddir="uploads/images"; 
$allowed_ext="jpg, gif, png"; 
$max_size="500000"; 
$max_height="2000"; 
$max_width="2000"; 

//Check extension 
$extension=pathinfo($_FILES['file']['name']); 
$extension=$extension[extension]; 
$allowed_paths=explode(",",$allowed_ext); 
for($i=0; $i < count($allowed_paths); $i++){ 
if ($allowed_paths[$i]=="$extension"){ 
$ok="1"; 
} 
} 

//Check File Size 
if ($ok =="1"){ 
if($_FILES['file']['size']>$max_size) 
{ 
print"Yor file is too big!"; 
exit; 
} 

//Check Length & Width 
if ($max_width && $max_height) { 
    list($width, $hieght, $type, $w)= 
    getimagesize($_FILES['file']['tmp_name']); 
    if($width > $max_height || $height > $max_height) 
    { 
        print"File height/width is too big!"; 
        exit; 
    } 
} 

//Upload part 
if(is_uploaded_file($_FILES['file']['tmp_name'])) 
{ 
move_uploaded_file($_FILES['file']['tmp_name'],$uploaddir.'/'.$_FILES['file']['name']); 
} 
print"Your file uploaded successfully! Cookie?"; 
}else{ 
print"Wrong file extension, BRO."; 
} 

?>

My problem is that under: $allowed_ext="jpg, gif, png";
When I try to upload, it only accepts .jpg file extension -.-
Could someone help me figure out how to get the other file extensions accessible?

[Derokorian]

You are exploding on the comma, however there are spaces after the comma so you end up checking if "gif" is equal to " gif" which it is not.

[AquaticDublol]

Thanks a lot. Worked perfectly 🙂

[Weedpacket]

And look at [man]in_array[/man], too.