is_countable

Verify that the contents of a variable is a countable value

Syntax

is_countable(mixed $value): bool

Parameters

value

The value to check

Return

Returns true if value is countable, false otherwise.

Examples

1

<?

$value = array();

$return = is_countable($value);

var_export($return);

?>
true

2

<?

$value = array(0, 1);

$return = is_countable($value);

var_export($return);

?>
true

3

<?

$value = new ArrayIterator();

$return = is_countable($value);

var_export($return);

?>
true

4

<?

$array = array(0, 1);

$value = new ArrayIterator($array);

$return = is_countable($value);

var_export($return);

?>
true

boolval

debug_zval_dump

doubleval

empty

floatval

get_debug_type

get_defined_vars

get_resource_id

get_resource_type

gettype

intval

is_array

is_bool

is_callable

is_double

is_float

is_int

is_integer

is_iterable

is_long

is_null

is_numeric

is_object

is_real

is_resource

is_scalar

is_string

isset

print_r

serialize

settype

strval

unserialize

unset

var_dump

var_export

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