Backend Development 2 min read

PHP is_dir() Function: Determine if a Path is a Directory

This article explains the PHP is_dir() function, describing its purpose to check whether a given filename refers to an existing directory, detailing its parameter, return values, and providing example code snippets demonstrating true and false outcomes for various path inputs.

Laravel Tech Community
Laravel Tech Community
Laravel Tech Community
PHP is_dir() Function: Determine if a Path is a Directory

The is_dir() function in PHP returns a boolean indicating whether the supplied filename corresponds to an existing directory.

Signature: bool is_dir(string $filename)

Description: It checks the given path; if the filename exists and is a directory, it returns TRUE , otherwise FALSE . Relative paths are resolved against the current working directory.

Parameter: $filename – the path to test; can be absolute or relative.

Return value: TRUE if the path is a directory, FALSE otherwise.

Example:

backendfile systemfunctionis_dir
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