第25個冬天

表單傳送值方式基本的有兩種(跟ASP一樣) GET (串後頭URL) formTest.html 1 2 3 4 5 6 7 8 9 10 11 12 13 <html> <head> <meta charset="UTF-8" > </head> <body> <form action="getPhone.php" method="get" > <div> 電話 </div> <input type="text" name ="phone" > <input type="submit" value="發送" > </form> </body> </html> getPhone.php 1 2 3 <?php echo "電話號碼:" . $_GET [ "phone" ]; ?> POST (表單傳送) formTest.html 1 2 3 4 5 6 7 8 9 10 11 12 13 <html> <head> <meta charset="UTF-8" > </head> <body> <form action="getPhone.php" method="post" > <div> 電話 </div> <input type="text" name ="phone" > <input type="submit" val...

[PHP_Day 8]_基本語法function

PHP函數的使用在參數名稱上不能重複 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 <?php #無傳入參數的function(無回傳值) function printWebSiteTitle (){ echo "This is Title<br/>" ; } printWebSiteTitle(); #有傳入參數的function(無回傳值) function printSayHello ( $name ){ echo "Hello " . $name . "<br/>" ; } printSayHello( "Jack" ); #無傳入參數的function(有回傳值) function getPI (){ return 3.1415 ; } echo getPI(). "<br/>" ; #有傳入參數的function(有回傳值) function getMinusResult ( $num1 , $num2 ){ return ( $num1 - $num2 ); } echo getMinusResult( 8 , 2 ). "<br/>" ; ?> 函數中optional參數(有預設值，可省略的) optional 參數通常放於最後這裡大括弧是用來相應輸出變數(前面要有$不然會變一般文字輸出)用的 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 <?php function Notify ( $title , $msg , $level = "Error" ){ if ( $level == "Error" ){ echo "<h1 style='color:red;...

[PHP_Day 7]_基本語法break 和 continue

Break 跟 Continue操作 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 <?php echo "continue使用<br/>" ; for ( $idx = 0 ; $idx < 10 ; $idx ++){ if ( $idx == 3 ) continue ; echo $idx ; } echo "<br/>" ; $idxVal = 0 ; while ( $idxVal < 10 ){ $idxVal ++; if ( $idxVal == 5 ) continue ; echo $idxVal ; } echo "<br/>break使用<br/>" ; $idxVal1 = 1 ; while ( $idxVal1 ){ echo $idxVal1 ; $idxVal1 ++; if ( $idxVal1 > 10 ) break ; } ?>

[PHP_Day 6]_基本語法part6_迴圈for_foreach

for loop 跟 foreach寫法 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 <?php $arr = [ "張三" , "李四" , "王五" ]; #$count = count($arr); #echo $count."<br/>"; echo "=======while loop======<br/>" ; $idx = 0 ; while ( $idx < count ( $arr )){ echo "名字:[" . $idx . "]" . $arr [ $idx ]. "<br/>" ; $idx ++; } echo "=======for loop======<br/>" ; for ( $idx2 = 0 ; $idx2 < count ( $arr ) ; $idx2 ++){ echo "名字:[" . $idx2 . "]" . $arr [ $idx2 ]. "<br/>" ; } echo "=======for v.s. foreach ======<br/>" ; echo "=======for======<br/>" ; $Students = [ [ "name" => "小明" , "數學成績" => 80 ], [ "name" => "小菲...

[PHP_Day 5]_基本語法part5_迴圈while_do..while

PHP迴圈 while 1 2 3 4 5 6 7 8 9 10 <?php $count = 5 ; while ( $count != 0 ){ echo "<h1>My Test</h1>" ; echo "Count: " . $count . "<br/>" ; $count --; } ?> Array遍歷(倒序) 1 2 3 4 5 6 7 8 9 10 <?php $arr = [ "blue" , "green" , "yello" , "white" ]; $count = count ( $arr ); echo $count . "<br/>" ; while ( $count --){ echo $arr [ $count ]. "<br/>" ; } ?> Array遍歷(正序) 1 2 3 4 5 6 7 8 9 10 11 12 <?php $arr = [ "blue" , "green" , "yello" , "white" ]; $count = count ( $arr ); $idx = 0 ; echo $count . "<br/>" ; while ( $count --){ echo $arr [ $idx ]. "<br/>" ; $idx ++; } ?> do ... while do裡面會先做 while裡面要改成先減減不然會offset 1 2 3...

[PHP_Day 4]_基本語法part4_Array、HashTable

陣列(可以不只侷限一種型態，可以是Object) 陣列的初始化有兩種寫一種是透過array小括號一種則是直接一組方括號可以用print_r來輸出整個array索引對應成員 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 <?php $arrStr = array ( "apple" , "banana" , "cherry" , "桃子" , "葡萄柚" ); var_dump ( $arrStr ); //陣列中string各自大小(Byte)，一個中文字佔3Byte。 echo "<br/>" ; print_r ( $arrStr ); echo "<br/>" ; echo $arrStr [ 3 ]; echo "<br/>" ; $arrStr2 = [ "a1" , "a2" , "a3" ]; var_dump ( $arrStr2 ); echo "<br/>" ; print_r ( $arrStr2 ); echo "<br/>" ; echo $arrStr2 [ 1 ]; echo "<br/>" ; $arrInt = [ 15 , 68 , 77 , 98 ]; var_dump ( $arrInt ); echo "<br/>" ; print_r ( $arrInt ); echo "<br/>" ; $arrFloat = [ 9.8 , 5.4 , 3.1 , 6.24 ]; var_dump...

[PHP_Day 3]_基本語法part3_單行條件判斷(三元運算子)_switch case

單行條件判斷(三元運算子)_switch case 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 <?php $res = true ; // Before if ( $res ) echo "真<br/>" ; else echo "假<br/>" ; // After $str = ( $res == true ) ? "真<br/>" : "假<br/>" ; echo $str ; $result = 8 ; // Before if ( $result == 1 ) echo "1<br/>" ; else if ( $result == 2 ) echo "2<br/>" ; else if ( $result == 3 ) echo "3<br/>" ; else echo "else<br/>" ; // After switch ( $result ){ case 1 : echo "case.1<br/>" ; echo "1<br/>" ; break ; case 2 : echo "case.2<br/>" ; break ; case 3 : echo "case.3<br/>" ; break ; d...

[PHP_Day 2]_基本語法part2_字串、數字型態、布林_算數運算_比較運算_邏輯運算

字串、數字型態、數值相關內建函數操作型態打印函數:var_dump (常用!!!) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 <?php //整數int echo "整數int<br/>" ; $intVal = 10 ; var_dump ( $intVal ); echo "<br/>" ; echo $intVal ; //背後有進行轉型為string，因為echo只接受string。 echo "<br/>" ; echo "負整數int<br/>" ; $intVal2 = - 88 ; var_dump ( $intVal2 ); echo "<br/>" ; echo $intVal2 ; echo "<br/>" ; //16進制表示 echo "整數16進制表示<br/>" ; $intHexVal = 0xff ; var_dump ( $intHexVal ); echo "<br/>" ; echo $intHexVal ; echo "<br/>" ; //float echo "浮點數float<br/>" ; $floatVal = 9.567 ; var_dump ( $floatVal ); echo "<br/>" ; echo $f...