Fixing Image Orientation using its Exif data
Sometimes photos are wrongly taken, eg: upside down, sideways etc, and most newbie users don’t know how to rotate image, so they might just upload image “as it is”. This might cause the problem later, unless you have some kind of image rotate program to set it right.
Grab Picture From Remote URL
It’s a really easy function to that copies remote picture into local folder. You can just use PHP copy() directly, but this function does little more than that, enjoy.
function grab_remote_pic($new_file_name, $local_dir_path, $remote_picture_url)
{
if(!is_dir($local_dir_path)){ //create new dir if doesn't exist
mkdir($local_dir_path);
}
$local_file_path = $local_dir_path .'/'.$new_file_name;
if(copy($remote_picture_url, $local_file_path))
{
return true;
}
}
Usage :
//grab_remote_pic(NEW FILE NAME, LOCAL SAVE PATH, REMOTE IMAGE URL)
grab_remote_pic('new_file_name.gif', 'home/path/to/local/images/', 'http://graph.facebook.com/1442161041/picture?width=120&height=120');
Redirect users to a new Page
There are various methods we can use to redirect users to different URL. Let’s have a look at codes below with just one goal.
HTML Meta Refresh Tag
Most common way to redirect users to another location is using HTML refresh meta tag, just have this code placed within the <head></head> section of your HTML page :
Javascript Location
And here is another method using Javascript window.location, only downside is if browser doesn’t support Javascript, this code will fail to redirect user to new location:
//Will take you to sanwebe.com
window.location.href = 'http://www.sanwebe.com';
PHP Header
We can use PHP header to redirect user to new URL easily, but remember there must be NO other output before this code, such as echo code which will trigger “headers already sent” error.
Perl Location
Here’s perl code to redirect user to sanwebe.com.
#!/usr/bin/perl
$url = "https://www.sanwebe.com/";
print "Location: $url\n\n";