使用する値の型を調べる関数一覧
- is_array
- is_bool
- is_float
- ＋is_double (is_floatのエイリアス)
- ＋is_real (is_floatのエイリアス)
- is_int
- ＋is_integer (is_intのエイリアス)
- ＋is_long (is_intのエイリアス)
- is_null
- is_object
- is_resource
- is_scalar
- is_string
- is_callable
型が合っていればTRUE、違えばFALSEを返す。
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