is_numeric
Description
bool is_numeric ( mixed var)Returns TRUE if var is a number or a numeric string, FALSE otherwise.
See also is_bool(), is_float(), is_int(), is_string(), is_object(), is_array(), and is_integer().
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Returns TRUE if var is a number or a numeric string, FALSE otherwise.
See also is_bool(), is_float(), is_int(), is_string(), is_object(), is_array(), and is_integer().