Type builtins

Type builtins

Function	Signature	Returns
boolval()	(mixed $value): bool	bool
ctype_alnum()	(string $text): bool	bool
ctype_alpha()	(string $text): bool	bool
ctype_digit()	(string $text): bool	bool
ctype_space()	(string $text): bool	bool
floatval()	(mixed $value): float	float
get_resource_id()	(resource $resource): int	int
get_resource_type()	(resource $resource): string	string
gettype()	(mixed $value): string	string
intval()	(mixed $value): int	int
is_array()	(mixed $value): bool	bool
is_bool()	(mixed $value): bool	bool
is_callable()	(mixed $value): bool	bool
is_float()	(mixed $value): bool	bool
is_int()	(mixed $value): bool	bool
is_iterable()	(mixed $value): bool	bool
is_null()	(mixed $value): bool	bool
is_numeric()	(mixed $value): bool	bool
is_object()	(mixed $value): bool	bool
is_resource()	(mixed $value): bool	bool
is_scalar()	(mixed $value): bool	bool
is_string()	(mixed $value): bool	bool
settype()	(mixed $var, string $type): bool	bool