WP_Filesystem_Direct::mkdir( string $path, int|false $chmod = false, string|int|false $chown = false, string|int|false $chgrp = false ): bool

Source

public function mkdir( $path, $chmod = false, $chown = false, $chgrp = false ) {
	// Safe mode fails with a trailing slash under certain PHP versions.
	$path = untrailingslashit( $path );

	if ( empty( $path ) ) {
		return false;
	}

	if ( ! $chmod ) {
		$chmod = FS_CHMOD_DIR;
	}

	if ( ! @mkdir( $path ) ) {
		return false;
	}

	$this->chmod( $path, $chmod );

	if ( $chown ) {
		$this->chown( $path, $chown );
	}

	if ( $chgrp ) {
		$this->chgrp( $path, $chgrp );
	}

	return true;
}

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