PHP is_dir() Function: Description, Parameters, Return Values, and Usage Examples
The article explains PHP's is_dir() function, detailing its signature, parameter description, return values, and provides two practical code examples demonstrating how to check if a path is a directory and handle the result.
The PHP is_dir() function determines whether a given filename refers to an existing directory.
Signature: bool is_dir(string $filename)
Parameters: $filename – the path to check; if it exists and is a directory, the function returns true , otherwise false . Relative paths are resolved against the current working directory.
Return value: true if the path is a directory, false otherwise.
Example 1:
Output:
bool(false)
bool(false)
bool(true)Example 2:
This will echo whether images is a directory.
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