一、 沒有對應的方法與權限會如何呈現呢
1. 基本樣式
〈html〉〈head〉 〈meta http-equiv="content-type" content="text/html; charset=utf-8" /〉 〈title〉沒有對應的方法與權限會如何呈現呢〈/title〉〈/head〉 〈body〉 class cbox { private $lenght1; private $breadth1; private $height1; function getdata( ) { return $this-〉breadth1*$this-〉height1*$this-〉lenght1; } } $box1 = new cbox; $box1-〉titlename="php"; echo $box1-〉titlename; $box1-〉test2(123);〈/body〉〈/html〉 |
2. 處理方式【另存新檔後增加或修改內容】
function __get($var) { echo "沒有對應的屬性可處理，若無此函數該屬性會自動產生：".$var."〈br〉"; } function __set($a,$b) { echo "沒有對應的屬性可接收，若無此函數該屬性會自動產生：".$a."〈br〉"; echo "第二個參數：".$b."〈br〉"; } function __call($a,$b) { echo "沒有對應的函數可處理，若無此函數會產生錯誤訊息：".$a."〈br〉"; echo "第二個參數：".$b."〈br〉"; } |
3. 權限不合的處理方式？【另存新檔後增加或修改內容】
$box1 = new cbox; $box1-〉lenght1="php"; echo $box1-〉lenght1; $box1-〉test2(123); |
二、 物件複製是否有錯？
〈html〉〈head〉 〈meta http-equiv="content-type" content="text/html; charset=utf-8" /〉 〈title〉物件複製是否有錯〈/title〉〈/head〉〈body〉 class cbox { private $lenght1; private $breadth1; private $height1; function __construct($a,$b,$c) { $this-〉lenght1=$a; $this-〉breadth1=$b; $this-〉height1=$c; } function setlength1($lenght1) { $this-〉lenght1=$lenght1; } function getlength1( ) { return $this-〉lenght1; } function getdata( ) { return $this-〉breadth1*$this-〉height1*$this-〉lenght1; } } $box1 = new cbox(20,20,20); $box2 = $box1; $box2-〉setlength1(30); echo "第1個箱子length1=".$box1-〉getlength1( )."〈br〉"; echo "第2個箱子length1=".$box2-〉getlength1( )."〈br〉";〈/body〉〈/html〉 |
三、 繼承
1. 基本樣式
〈html〉〈head〉 〈meta http-equiv="content-type" content="text/html; charset=utf-8" /〉 〈title〉繼承〈/title〉〈/head〉〈body〉 class cat extends animal { function __construct( ) { echo "產生一隻貓科動物"."〈br〉"; } } class tiger extends cat{ function __construct( ) { echo "產生一隻老虎"."〈br〉"; } } class animal { function __construct( ) { echo "產生一隻動物"."〈br〉"; } } $tiger1 = new tiger; echo "〈hr〉"; $cat1 = new cat; echo "〈hr〉"; $animal2 = new animal; echo "〈hr〉";〈/body〉〈/html〉 |
2. 子類別執行父類別的建構子
class cat extends animal { function __construct( ) { parent::__construct( );//new echo "產生一隻貓科動物"."〈br〉"; } } |
3. 父子類別都有相同的方法
class cat extends animal { function __construct( ) { parent::__construct( );//new echo "產生一隻貓科動物"."〈br〉"; } function run( ) { echo "貓科動物跑得快"."〈br〉"; } } class tiger extends cat{ function __construct( ) { echo "產生一隻老虎"."〈br〉"; } function run( ) { echo "老虎跑得快"."〈br〉"; } } |
4. 子類別執行父類別的方法
class tiger extends cat{ function __construct( ) { echo "產生一隻老虎"."〈br〉"; } function run( ) { echo "老虎跑得快"."〈br〉"; return parent::run( ); } } |
四、 影像處理：劃框線
$img = ImageCreateFromPNG('img.png'); $color_black = ImageColorAllocate($img, 0, 0, 0); drawBorder($img, $color_black, 30); header('Content-type: image/png'); Imagepng($img); function drawBorder(&$img, &$color, $thickness = 1) { $x1 = 0; $y1 = 0; $x2 = ImageSX($img) - 1; $y2 = ImageSY($img) - 1; for($i = 0; $i 〈 $thickness; $i++) { ImageRectangle($img, $x1++, $y1++, $x2--, $y2--, $color_black); } } |
五、 繪製圖表-1
header("Content-type: image/png"); $arrval = array(12,123,21,32,77,85,166,176,163,121); $height = 260; $width = 330; $im = imagecreate($width,$height); $white = imagecolorallocate($im,255,255,255); $gray = imagecolorallocate($im,200,200,200); $black = imagecolorallocate($im,0,0,0); $red = imagecolorallocate($im,255,0,0); $x = 21; $y = 11; $num = 0; while($x〈=$width && $y〈=$height){ $prcnt = ((($height-50)-($y-1))/($height-60))*100; imageline($im, 21, $y, $width-10, $y, $gray); imageline($im, $x, 11, $x, $height-50, $gray); imagestring($im,2,1,$y-10,$prcnt.'%',$red); imagestring($im,2,$x-3,$height-40,$num,$red); $x += 30; $y += 20; $num++; } $tx = 20; $ty = 210; foreach($arrval as $values){ $cx = $tx + 30; $cy = 200-$values; imageline($im,$tx,$ty,$cx,$cy,$red); imagestring($im,5,$cx-3,$cy-13,'.',$red); $ty = $cy; $tx = $cx; } imageline($im, 20, 11, 20, $height-50, $black); imageline($im, 20, $height-49, $width-10, $height-49, $black); imagestring($im,3,10,$height-20,'Line Graph by: Roseindia Technologies',$red); imagepng($im); |
六、 繪製圖表-2
$image = imagecreatetruecolor(300, 300); $white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF); $gray = imagecolorallocate($image, 0xC0, 0xC0, 0xC0); $darkgray = imagecolorallocate($image, 0x90, 0x90, 0x90); $navy = imagecolorallocate($image, 0x00, 0x00, 0x80); $darknavy = imagecolorallocate($image, 0x00, 0x00, 0x50); $red = imagecolorallocate($image, 0xFF, 0x00, 0x00); $darkred = imagecolorallocate($image, 0x90, 0x00, 0x00); for ($i = 160; $i 〉 150; $i--) { imagefilledarc($image, 150, $i, 200, 100, 0, 45, $darknavy, IMG_ARC_PIE); imagefilledarc($image, 150, $i, 200, 100, 45, 75 , $darkgray, IMG_ARC_PIE); imagefilledarc($image, 150, $i, 200, 100, 75, 360 , $darkred, IMG_ARC_PIE); } imagefilledarc($image, 150, 150, 200, 100, 0, 45, $navy, IMG_ARC_PIE); imagefilledarc($image, 150, 150, 200, 100, 45, 75 , $gray, IMG_ARC_PIE); imagefilledarc($image, 150, 150, 200, 100, 75, 360 , $red, IMG_ARC_PIE); header('Content-type: image/png'); imagepng($image); imagedestroy($image); |
七、 繪製圖表與資料庫
include "db.php"; $qt=mysql_query("select * from gd_graph"); header ("Content-type: image/jpg"); $x_gap=40; $x_max=$x_gap*13; $y_max=250; $im = @ImageCreate ($x_max, $y_max) or die ("Cannot Initialize new GD image stream"); $background_color = ImageColorAllocate ($im, 234, 234, 234); $text_color = ImageColorAllocate ($im, 233, 14, 91); $graph_color = ImageColorAllocate ($im,25,25,25); $x1=0; $y1=0; $first_one="yes"; while($nt=mysql_fetch_array($qt)){ $x2=$x1+$x_gap; $y2=$y_max-$nt[sales]; //ImageString($im,2,$x2,$y2,$nt[month].$nt[sales],$graph_color); ImageString($im,2,$x2,$y2,$nt[month],$graph_color); if($first_one=="no"){ imageline ($im,$x1, $y1,$x2,$y2,$text_color); } $x1=$x2; $y1=$y2; $first_one="no"; } ImageJPEG ($im); |
八、 其他
