PHP is_writable()Function
Complete PHP Filesystem Reference Manual
Definition and Usage
The is_writable() function checks whether the specified file is writable.
If the file is writable, the function returns TRUE.
Syntax
is_writable(file)
| Parameter | Description |
|---|---|
| file | Required. Specifies the file to be checked. |
Tips and Notes
Note:The results 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");
}
?>
$file = "test.txt";
if(is_writable($file))
{
echo ("$file is writeable");
}
else
{
echo ("$file is not writeable");
}
?>
The above code will output:
test.txt is writeable
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