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PHP filesize () function

PHP Filesystem Reference Manual Complete PHP Filesystem Reference Manual

Definition and Usage

filesize () function returns the specified file size.

If successful, the function returns the number of bytes in the file size. If it fails, it returns FALSE.

grammar

filesize(filename)

参数 描述
filename 必需。规定要检查的文件。


Tips and Notes

Note: The results of this function are cached.Use clearstatcache () to clear the cache.


Examples

<?php
echo filesize("test.txt");
?>

The code above will output:

20


PHP Filesystem Reference Manual Complete PHP Filesystem Reference Manual