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                # 6 函數返回值 本章目錄 * [1. 一個特殊的參數:return_value](6.1.md) * [2. 引用與函數的執行結果](6.2.md) * [3. 小結](6.3.md) PHP語言中函數的返回值是通過return來完成的,就像下面的程序: ````php <?php function sample_long() { return 42; } $bar = sample_long(); ```` C語言也一樣使用return關鍵字 ````c int sample_long(void) { return 42; } int main(void) { int bar = sample_long(); return 1; } ```` 那我們在擴展中編寫的PHP函數如何把返回值回饋給用戶端的函數調用者呢?看好,這里指的是回饋給,而不是單單的return~ ## links * 5.5 [第五章小結](<5.5.md>) * 6.1 [一個特殊的參數:return_value](<6.1.md>)
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