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Three ways to get file extension in php_PHP tutorial
- WBOYOriginal
- 2016-07-21 16:00:39743browse
Copy code The code is as follows:
//Method 1:
function extend_1($file_name)
{
$retval="";
$pt=strrpos($file_name, ".");
if ($pt) $retval=substr($file_name, $pt+1, strlen($file_name) - $pt);
return ($retval);
}
//Method 2
function extend_2($file_name)
{
$ extend = pathinfo($file_name);
$extend = strtolower($extend["extension"]);
return $extend;
}
//Method 3
function extend_3($file_name)
{
$extend =explode("." , $file_name);
$va=count($extend)-1;
return $extend[$va];
}
?>
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