助詞N3
〜って
I heard that... / called... (quotation)
Structure
句子 + って（引用・伝聞）；N + って（話題）
Explanation
The casual form of と/という, used for quotation or hearsay, "I heard that... / called...". Also introduces topics.
Examples
田中さんは来月、結婚するって。
I heard Tanaka is getting married next month.
「さくら」って花は知ってる？
Do you know a flower called sakura?
Note
って is the casual contraction of と/という, informal in tone.