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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ### 可變函數 所謂可變函數,即通過變量的值來調用函數,因為變量的值是可變的,所以可以通過改變一個變量的值來實現調用不同的函數。經常會用在回調函數、函數列表,或者根據動態參數來調用不同的函數。可變函數的調用方法為變量名加括號。 ~~~ function name() { echo 'jobs'; } $func = 'name'; $func(); //調用可變函數 ~~~ 可變函數也可以用在對象的方法調用上。 ~~~ class book { function getName() { return 'bookname'; } } $func = 'getName'; $book = new book(); $book->$func(); ~~~
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