is_scalar

PHP 4 >= 4.0.5, PHP 5, PHP 7, PHP 8
is_scalar - Finds whether a variable is a scalar
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is_scalar( mixed$value ): bool

Finds whether the given variable is a scalar.

Scalar variables are those containing an int, float, string or bool. Types array, object, resource and null are not scalar.

Note:

is_scalar does not consider resource type values to be scalar as resources are abstract datatypes which are currently based on integers. This implementation detail should not be relied upon, as it may change.

Note:

is_scalar does not consider NULL to be scalar.

Parameters

value

The variable being evaluated.

Return Values

Returns true if value is a scalar, false otherwise.

Related Functions

  • is_array - Finds whether a variable is an array
  • is_bool - Finds out whether a variable is a boolean
  • is_float - Finds whether the type of a variable is float
  • is_int - Find whether the type of a variable is integer
  • is_numeric - Finds whether a variable is a number or a numeric string
  • is_object - Finds whether a variable is an object
  • is_real - Alias of <function>is_float</function>
  • is_string - Find whether the type of a variable is string

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