PHP is_writable() Function
Complete PHP Filesystem Reference
Definition and Usage
The is_writable() function checks whether the specified file is writeable.
This function returns TRUE if the file is writeable.
Syntax
is_writable(file)
| Parameter | Description |
|---|---|
| file | Required. Specifies the file to check |
Tips and Notes
Note: The result of this function are cached. Use clearstatcache() to clear the cache.
Example
<?php
$file = "test.txt";
if(is_writable($file))
{
echo ("$file is writeable");
}
else
{
echo ("$file is not writeable");
}
?>
The output of the code above could be:
test.txt is writeable
Complete PHP Filesystem Reference
