Course Recommendation:
PHP is_writeable() Function
Definition and Usage
is_writeable() function determines whether the specified file is writable. This function is is_writable()
Alias of the function.
is_writeable(file)
| Parameters | Description |
|---|---|
| file | Required. Specifies the file to be checked. |
Description
If the file exists and is writable, it will return true.file The parameter can be a directory name that allows for whether the file is writable check.
Tips and Comments
Note:The result of this function will be cached. Please use clearstatcache() to clear the cache.
Example
<?php
$file = "test.txt";
if(is_writeable($file))
{
echo("$file is writeable");
}
else
{
echo("$file is not writeable");
}
?>
Output:
test.txt is writeable
