I have an upload script that I need to check the file extension, then run separate functions based on that file extension. Does anybody know what code I should use?
if (FILE EXTENSION == ???)
{
FUNCTION1
}
else if
{
FUNCTION2
}
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7 Answers
pathinfo is what you're looking for
$file_parts = pathinfo($filename);
switch($file_parts['extension'])
{
case "jpg":
break;
case "exe":
break;
case "": // Handle file extension for files ending in '.'
case NULL: // Handle no file extension
break;
}
3 Comments
swl1020
What's the case for no extension? case NULL? case ""?
Brombomb
Updated. empty string
"" is for files then end with .. NULL is for no file extension. You could break out the case statement, but for the example I just group them together.
medilies
pathinfo($pathtofile, PATHINFO_EXTENSION)$info = pathinfo($pathtofile);
if ($info["extension"] == "jpg") { .... }
2 Comments
M Smith
I've used this code on a section of my website. However, when executing it along with
echo "$info" it always returns the value Array. Why is this?
Alon Eitan
@user2910074 This question is OLD, and I'll have you see your code in order to provide with any help. I suggest that you'll post a question here on SO
$file_parts = pathinfo($filename);
$file_parts['extension'];
$cool_extensions = Array('jpg','png');
if (in_array($file_parts['extension'], $cool_extensions)){
FUNCTION1
} else {
FUNCTION2
}
1 Comment
CousinCocaine
you might want to change the order of the 'needle' and the 'haystack' in
in_array.For php 5.3+ you can use the SplFileInfo() class
$spl = new SplFileInfo($filename);
print_r($spl->getExtension()); //gives extension
Also since you are checking extension for file uploads, I highly recommend using the mime type instead..
For php 5.3+ use the finfo class
$finfo = new finfo(FILEINFO_MIME);
print_r($finfo->buffer(file_get_contents($file name));
Comments
$path = 'image.jpg';
echo substr(strrchr($path, "."), 1); //jpg
Comments
$original_str="this . is . to . find";
echo "<br/> Position: ". $pos=strrpos($original_str, ".");
$len=strlen($original_str);
if($pos >= 0)
{
echo "<br/> Extension: ". substr($original_str,$pos+1,$len-$pos) ;
}
1 Comment
user229044
@jurchiks
this . is . to . find is absolutely a valid file name in most operating systems.$file = $_FILES["file"] ["tmp_name"];
$check_ext = strtolower(pathinfo($file,PATHINFO_EXTENSION));
if ($check_ext == "fileext") {
//code
}
else {
//code
}
