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is_numeric

(PHP 4, PHP 5)

is_numeric --  Finds whether a variable is a number or a numeric string

Description

bool is_numeric ( mixed var )

Finds whether the given variable is numeric.

Parameters

var

The variable being evaluated.

Return Values

Returns TRUE if var is a number or a numeric string, FALSE otherwise.

See Also

is_bool()
is_null()
is_float()
is_int()
is_string()
is_object()
is_array()

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