PHP6 -VS CODE 開始

--- title: PHP6 -VS CODE 開始 tags: PHP --- http://localhost:8012/phpmyadmin/tbl_sql.php?db=2022030501&table=%E5%AD%B8%E7%94%9F%E8%B3%87%E6%96%99 C:\xampp\htdocs\myphp ![](https://i.imgur.com/Inndf7Q.png) 邏輯運算子 ==等於 === 全等 ! 不是要把下面兩個都打開.網頁才可以打開 ![](https://i.imgur.com/k4X3Lt7.png) ![](https://i.imgur.com/ukKNpUh.png) http://localhost:8012/myphp/0312-01.php ![](https://i.imgur.com/mQPpliG.png) --- unset 是指移除變數 ![](https://i.imgur.com/quIj4Yb.png) --- if 判斷式 http://localhost:8012/myphp/0319-01.php ![](https://i.imgur.com/xnm9nfJ.png) ![](https://i.imgur.com/qlnoXSm.png) ![](https://i.imgur.com/0xqJbRa.png) ```` <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <?php $mynum = 100; if($mynum == 100){ echo "很棒喔~滿分100分"; } ?> </body> </html> ```` --- if +else 否則就..... ![](https://i.imgur.com/fkPzTRz.png) ![](https://i.imgur.com/2KOIZIm.png) --- if +else if+ else ![](https://i.imgur.com/DMlkVVu.png) --- 排好=格式化文件 =shift+alt+f ![](https://i.imgur.com/m3H5eFK.png) ![](https://i.imgur.com/SRRY9oG.png) ![](https://i.imgur.com/vZMHe3N.png) ```` <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <?php $mynum = 22; if ($mynum == 100) { echo "很棒喔~滿分100分"; } else if ($mynum >= 60) { echo "恭喜及格"; } else { echo "不及格 =補考"; } ?> </body> </html> ```` 兩個等號才是相等 ![](https://i.imgur.com/jZ7VZXg.png) --- 這樣寫0會出現不及格..但是不會寫補考...所以有錯... ![](https://i.imgur.com/nUREelI.png) ![](https://i.imgur.com/2BDSrVC.png) --- ![](https://i.imgur.com/RMp7Etn.png) ![](https://i.imgur.com/Xyx3CR5.png) --- 產生前端語法- ![](https://i.imgur.com/98aQ9KV.png) --- 現在想要做出來的成果- ![](https://i.imgur.com/ZoGhxqk.jpg) --- 程式碼- ```` <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <?php if(!isset($h)){$h=1.72;} if(!isset($w)){$w=60;} $bmi = round($w/($h*$h),1); echo "<br>"; if($bmi >=30 ){$status = "肥胖!";} elseif ($bmi >=25 ){$status = "過重!";} elseif ($bmi >=18.5 ){$status = "標準!";} else{$status = "過輕!";} ?> <div> <p>您的身高是:<?php echo $h*100; ?></p> <p>您的體重是:<?php echo $w; ?>公斤</p> <p>您的BMI數值是:<?php echo $bmi; ?></p> <p>您的BMI判斷標準為:<?php echo $status; ?></p> </div> </body> </html> ```` ![](https://i.imgur.com/p3brjg6.png) ![](https://i.imgur.com/GcLiFkK.png) --- 判斷式- 判斷是否為文字 is_string() / 數字 is_numeric() /整數 is_int() --- 成績要做出來的成果 ![](https://i.imgur.com/91Z6CKf.jpg) ```` ```` --- switch ![](https://i.imgur.com/NCXZfUl.png) if 的都可以寫成 switch ![](https://i.imgur.com/XQzENCf.png) --- while 迴圈 - 執行重複動作 -跑了10次 **注意邏輯..最怕無窮迴圈** ![](https://i.imgur.com/zABiR0n.png) ```` ```` --- do while 迴圈 - ![](https://i.imgur.com/fuSUjmT.jpg) ```` ```` --- for 迴圈 - 嚴謹 ![](https://i.imgur.com/qGvD6Zg.png) ![](https://i.imgur.com/mx9adOd.jpg) ```` ```` --- 放10張圖檔在自己的myphp 裡面- C:\xampp\htdocs\myphp ![](https://i.imgur.com/kK343ro.png) ![](https://i.imgur.com/TiZWHtL.png) 網頁裡面的/是這個方向會跟複製的相反 ![](https://i.imgur.com/2kzew8P.png) ![](https://i.imgur.com/7Gz8Vgw.png) 加入FOR 迴圈讓照片1-10顯示 -用3行取代很多行 ```` <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body>  <?php //<img src="pic1/1.jpg"> //外面是2個" for ($a = 1 ;$a <= 10 ; $a ++ ){ echo"<img src='pic1/$a.jpg'>"; //裡面是一個' } ?> </body> </html> ```` ![](https://i.imgur.com/uQx1RyG.jpg) --- 在BODY 下面怎麼不能用 // 註解 ![](https://i.imgur.com/tuD3C1R.png) 要用 ```` body裡面註解是  ```` ![](https://i.imgur.com/AOYgPwy.png) --- HTML的註解長這樣在VS CODE 也可以按 CTRL +L 會加上相對位置的註解 ```` body裡面註解是  css註解 /* */ js註解是 // ```` --- 再放入100張圖- C:\xampp\htdocs\myphp ![](https://i.imgur.com/qRG9vJX.png) http://localhost:8012/myphp/0319-04.php \n 代表程式碼換行- ```` ```` 另外一種寫法- 之後只要改資料夾名稱- ```` ```` --- ```` ```` --- 抓100張照片方法1 ![](https://i.imgur.com/BtHosL2.jpg) 抓100張照片方法2 ![](https://i.imgur.com/0Hy3rwS.jpg) ---- 其他- ![](https://i.imgur.com/uIcjm45.jpg) 把不規則檔案全部抓進來的方法- ![](https://i.imgur.com/JD81hAv.jpg) --- 面試必考題 9×9法表 ```` ```` 用 FOR 迴圈試試 ```` ```` ---

Syntax	Example	Reference
# Header	Header	基本排版
- Unordered List	Unordered List
1. Ordered List	Ordered List
- [ ] Todo List	Todo List
> Blockquote	Blockquote
Bold font	Bold font
Italics font	Italics font
~~Strikethrough~~	~~Strikethrough~~
19^th^	19^th
H~2~O	H₂O
++Inserted text++	Inserted text
==Marked text==	Marked text
[link text](https:// "title")	Link
![image alt](https:// "title")	Image
`Code`	`Code`	在筆記中貼入程式碼
```javascript var i = 0; ```	`var i = 0;`
:smile:		Emoji list
{%youtube youtube_id %}	Externals
$L^aT_eX$	L^aT_eX
:::info This is a alert area. :::	This is a alert area.