Automattic\WooCommerce\Vendor\GraphQL\Utils

Utils::isValidNameError │ public static │ WC 1.0

Returns an Error if a name is invalid.

Method of the class: Utils{}

No Hooks.

Returns

null. Nothing (null).

Usage

$result = Utils::isValidNameError( $name, ?Node $node ): ?Error;
$name(string) (required)
.
?Node $node
.
Default: null

Utils::isValidNameError() code WC 11.1.2

woocommerce/lib/packages/GraphQL/Utils/Utils.php 
public static function isValidNameError(string $name, ?Node $node = null): ?Error
{
    if (isset($name[1]) && $name[0] === '_' && $name[1] === '_') {
        return new Error(
            "Name \"{$name}\" must not begin with \"__\", which is reserved by Automattic\WooCommerce\Vendor\GraphQL introspection.",
            $node
        );
    }

    if (preg_match('/^[_a-zA-Z][_a-zA-Z0-9]*$/', $name) !== 1) {
        return new Error(
            "Names must match /^[_a-zA-Z][_a-zA-Z0-9]*\$/ but \"{$name}\" does not.",
            $node
        );
    }

    return null;
}