PHP How to get the file extension _php tutorial

There are a number of ways to get the suffix of a file, as described below.

The Strtolower () function converts a string to lowercase.

The Strrev () function reverses the string.

The Strpos () function returns the position of the first occurrence of a string in another string.

is to first find the symbol '. ' , and then calculates the length of the extension. The length of the total length of the string minus the extension length is used to calculate how long to intercept.

http://www.bkjia.com/PHPjc/752561.html www.bkjia.com true http://www.bkjia.com/PHPjc/752561.html techarticle There are a number of ways to get the suffix of a file, as described below. Php$file_name = "Bkjia.txt"; Echo get_exname ($file _name);/** * Get file extension * @param unknown_ Ty ...

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