The following example demonstrates 5 methods for PHP to get the URL suffix:
Example
$url="http://www.example.com/html/html-tutorial.html";
//String cutting
function get_ext1($url){
return substr(strrchr($url,"."),1);
}
//Using pathinfo
function get_ext2($url){
$p=pathinfo($url);
return $p['extension'];
}
//String cutting
function get_ext3($url){
return substr($url,strrpos($url,'.')+1);
}
//Using array_pop
function get_ext4($url){
$arr=explode('.',$url);
return array_pop($arr);
}
//Using pathinfo and its constants
function get_ext5($url){
return pathinfo($url,PATHINFO_EXTENSION);
}
echo get_ext1($url) . PHP_EOL;
echo get_ext2($url) . PHP_EOL;
echo get_ext3($url) . PHP_EOL;
echo get_ext4($url) . PHP_EOL;
echo get_ext5($url) . PHP_EOL;
The test output is:
html html html html html