PHP 6 ways to get a file extension _php tutorial

Yesterday, and a friend in the PHP Exchange group (276167802, verify: CSL, interested words can join in the discussion together) mentioned PHP6 ways to get the file extension, now take it out and share it with you:

1. How to find and intercept strings

$extension =substr (STRRCHR ($file, '. '), 1);

2, String search and interception method two

$extension =substr ($file, Strrpos ($file, '. ') +1);

3, the method of array segmentation

$extension =end (Explode ('. ', $file));

4, the use of PathInfo Direct analysis method

$info = PathInfo ($file); $extension = $info [' extension '];

5. Use the second parameter of PathInfo

$extension =pathinfo ($file, pathinfo_extension);

6. Using the Finfo_file function

$finfo = Finfo_open (fileinfo_mime_type), $extension = Finfo_file ($finfo, $file); Echo $extension; Finfo_close ($finfo);

http://www.bkjia.com/PHPjc/621640.html www.bkjia.com true http://www.bkjia.com/PHPjc/621640.html techarticle yesterday, and a friend in the PHP Exchange group (276167802, verify: CSL, interested words can join in the discussion together) mentioned in PHP to get the extension of the file 6 methods, now take out ...

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