PHP to achieve a simple picture upload

File upload. LINUX+APACHE+PHP3/4 test passed. IIS test failed, win+apache+php not tested
<?php
if ($HTTP _post_vars["upload"]== "upload") {
file://Here you can add check file name, format, picture size and so on function,
file://$picurl The full path of the local system
file://$picurl _name The temporary file name after uploading
file://$picurl _size File Size (in bytes)
MIME type of file://$picurl _type file

Copy ("$picurl", "/where/you/want/put/the/uploaded/files/in/$picurl _name");
Exit
}
?>
<form action= "." Method= "POST" enctype= "Multipart/form-data" name= "UL" >
<!--Note: Here must be added ' enctype= ' multipart/form-data ', otherwise it will not produce on
Movement-->
<input type= "File" Name= "Picurl" size= "15"
accept= "Image/x-png,image/gif,image/jpeg" >
<input type= "Submit" name= "Upload" value= "upload" >
</form>