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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
                ## 1.舍去取整 ~~~ floor(123.12321); ~~~ ## 2.進1取整 ~~~ ceil(15.3424); ~~~ ## 3.返回類型(混合類型) ~~~ gettype($str); ~~~ ## 4.回調函數 ~~~ //系統回調函數 function fun2($name){ echo $name.'我唉你'; } call_user_func('fun2','波波'); 數組回調函數 $a = [20,30,40]; echo call_user_func_array('add',$a); ~~~ ## 5.獲取傳入數組參數的個數 ~~~ function foo() { $numargs = func_num_args(); echo "Number of arguments: $numargs\n"; } foo(1, 2, 3); ~~~ ## 6.獲取數組傳入的參數 ~~~ function foo() { $numargs = func_num_args(); echo "Number of arguments: $numargs<br />\n"; if ($numargs >= 2) { echo "Second argument is: " . func_get_arg(1) . "<br />\n"; } } foo (1, 2, 3); ~~~ ## 7.回調調用數組(傳入數組值到函數) ~~~ $arr = [1,2,3,4,5,6]; call_user_func_array('函數名',$arr); ~~~ ## 8.返回文件路徑的目錄部分 ~~~ dirname(); ~~~ ## 9.讓代碼延遲幾微妙再執行 ~~~ usleep(); ~~~ ## 10.生成一個唯一隨機id ~~~ uniqid(); ~~~ ## 11.讓代碼延遲到指定時間再執行 ~~~ time_sleep_until(); ~~~ ## 12.讓代碼延遲幾秒再執行 ~~~ sleep(); ~~~ ## 13.對文件進行語法高亮顯示 ~~~ show_source(); ~~~ ## 14.把字符串轉換為php變量 ~~~ eval(); ~~~ ## 15.檢查常量是否存在; ~~~ defined(); ~~~
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                              哎呀哎呀视频在线观看