| function extend_2($file_name)
{
$extend = pathinfo($file_name);
$extend = strtolower($extend["extension"]);
return $extend;
}
Definition and usage
The pathinfo() function returns file path information in the form of an array.
Grammar
pathinfo(path,options)
pathinfo() returns an associative array containing path information.
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function getextension($filename)
{
return substr(strrchr($filename,”.”),1);
}
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Includes the following array elements:
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function GetFiletype($filename){
$filer=explode(".",$filename);
$count=count($filer)-1;
return strtolower(".".$filer[$count]);
}
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[dirname]
[basename]
[extension]
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function getfile($filestr){
// 用点号分隔文件名到数组
$get = explode('.',$filestr);
//把上面数组倒序
$get = array_reverse($get);
//返回倒序数组的第一个值
return $get[0];
}
$filename = getfile('nowamagic.doc');
echo $filename; |
//Get the file extension
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function getextension($filename)
{
Return substr(strrchr($filename,”.”),1);
} |
Use segmentation method
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function GetFiletype($filename){
$filer=explode(".",$filename);
$count=count($filer)-1;
return strtolower(".".$filer[$count]);
}
Use the segmentation method to bring the system’s own function array_reverse
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function getfile($filestr){
// Use dots to separate file names into arrays
$get = explode('.',$filestr);
//Reverse the above array
$get = array_reverse($get);
//Return the first value of the reversed array
Return $get[0];
}
$filename = getfile('nowamagic.doc');
echo $filename;
Detailed explanation of array_reverse
(PHP 4, PHP 5)
array_reverse - Returns an array with its contents reversed
Description
array_reverse(array$array[, boolean$preserve_keys=false])
A command that takes an input array and returns a new array with the contents reversed.
http://www.bkjia.com/PHPjc/629188.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/629188.htmlTechArticleTo get the file suffix name, there are many advertisements in php, such as $extend after the result of php function pathinfo ["extension"] is a good method. The following are private customizations that need to be understood...
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