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\u8cc7\u6599\u4f86\u6e90\uff1ahttp:\/\/php.igt.com.tw\/unit_111.htm<\/a><\/p>\n

PHP \u652f\u63f4\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\uff0c\u96d6\u7136\u5c31\u7d14\u7cb9\u7684\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\u7684\u89c0\u9ede\u4f86\u770b\uff0c\u5b83\u7684\u652f\u63f4\u4e26\u4e0d\u662f\u5f88\u5b8c\u6574\uff0c\u4f46\u662f\uff0c\u53ea\u8981\u6211\u5011\u9075\u5faa\u826f\u597d\u7684\u7a0b\u5f0f\u8a2d\u8a08\u7fd2\u6163\uff0c\u6211\u5011\u9084\u662f\u53ef\u4ee5\u5584\u7528 PHP \uff0c\u4f86\u958b\u767c\u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u3002<\/p>\n

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\u8ab2\u7a0b111\uff1a\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08<\/td>\n<\/tr>\n
\u6458\u8981\uff1a <\/p>\n
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\n
\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\u89c0\u5ff5 <\/p>\n
<\/td>\n<\/tr>\n
\n

PHP \u652f\u63f4\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\uff0c\u96d6\u7136\u5c31\u7d14\u7cb9\u7684\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\u7684\u89c0\u9ede\u4f86\u770b\uff0c\u5b83\u7684\u652f\u63f4\u4e26\u4e0d\u662f\u5f88\u5b8c\u6574\uff0c\u4f46\u662f\uff0c\u53ea\u8981\u6211\u5011\u9075\u5faa\u826f\u597d\u7684\u7a0b\u5f0f\u8a2d\u8a08\u7fd2\u6163\uff0c\u6211\u5011\u9084\u662f\u53ef\u4ee5\u5584\u7528 PHP \uff0c\u4f86\u958b\u767c\u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u3002<\/p>\n

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    \n
  1. \u5c6c\u6027(Property)\uff1a\u5373\u7269\u4ef6\u88e1\u7684\u8cc7\u6599(\u8b8a\u6578)\u3002<\/li>\n
  2. \u65b9\u6cd5(Method)\uff1a\u5373\u7269\u4ef6\u88e1\u7684\u529f\u80fd(\u51fd\u5f0f)\u3002<\/li>\n
  3. \u6210\u54e1(Member)\uff1a\u5373\u985e\u5225\u88e1\u6240\u5b9a\u7fa9\u7684\u8b8a\u6578\u6216\u51fd\u5f0f\u3002<\/li>\n
  4. \u7269\u4ef6\uff1a\u985e\u5225\u7684\u5be6\u4f8b\u3002<\/li>\n
  5. \u985e\u5225\uff1a\u7269\u4ef6\u7684\u5b9a\u7fa9\u3002\u7531\u4f7f\u7528\u8005\u6240\u5b9a\u7fa9\u7684\u8cc7\u6599\u578b\u614b\u3002<\/li>\n<\/ol>\n

    \u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\u7684\u652f\u67f1<\/strong><\/p>\n

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    \u6240\u8b02\u7e7c\u627f\uff0c\u5c31\u662f\u5b50\u985e\u5225\u85c9\u7531\u7e7c\u627f\u7236\u985e\u5225\u7684\u65b9\u5f0f\uff0c\u53d6\u5f97\u7236\u985e\u5225\u6240\u5b9a\u7fa9\u7684\u5c6c\u6027\u53ca\u65b9\u6cd5\u3002\u901a\u5e38\uff0c\u7236\u985e\u5225\u6703\u5b9a\u7fa9\u901a\u7528\u7684\u5c6c\u6027\u53ca\u65b9\u6cd5\uff0c\u800c\u5b50\u985e\u5225\u5247\u5ef6\u4f38\u7236\u985e\u5225\u5b9a\u7fa9\u7279\u5b9a\u7684\u5c6c\u6027\u53ca\u65b9\u6cd5\uff0c\u4ee5\u89e3\u6c7a\u7279\u5b9a\u7684\u554f\u984c\u3002<\/p>\n

    \u5982\u4f55\u4f7f\u7528\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\u4f86\u958b\u767c\u7a0b\u5f0f<\/strong><\/p>\n

    \u4f7f \u7528\u7269\u4ef6\u5c0e\u5411\u7684\u65b9\u5f0f\u4f86\u958b\u767c\u7a0b\u5f0f\uff0c\u6700\u4e3b\u8981\u7684\u95dc\u9375\uff0c\u5728\u65bc\u7a0b\u5f0f\u8a2d\u8a08\u89c0\u5ff5\u7684\u6539\u8b8a\u3002\u4e4b\u524d\uff0c\u6211\u5011\u4f7f\u7528\u51fd\u5f0f\u4f86\u958b\u767c\u7559\u8a00\u7248\u7684\u6642\u5019\uff0c\u6211\u5011\u8457\u91cd\u5728\u65bc\u627e\u51fa\u7559\u8a00\u7248\u61c9\u8a72\u5177\u6709\u7684\u529f\u80fd\uff0c\u7136 \u5f8c\uff0c\u6309\u7167\u529f\u80fd\u4f86\u64b0\u5beb\u5c0d\u61c9\u7684\u51fd\u5f0f\u3002\u5916\u754c\u7684\u7db2\u9801\u7a0b\u5f0f\uff0c\u628a\u8cc7\u6599\u9935\u7d66\u9019\u4e9b\u529f\u80fd\uff0c\u4f86\u5b8c\u6210\u5b83\u7684\u5de5\u4f5c\u3002\u4f7f\u7528\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\u6642\uff0c\u6211\u5011\u5fc5\u9808\u628a\u7a0b\u5f0f\u6240\u4f01\u5716\u89e3\u6c7a\u7684\u554f\u984c\uff0c\u770b\u505a\u662f \u4e00\u500b\u7368\u7acb\u7684\u500b\u9ad4\u3002\u5728\u9019\u500b\u500b\u9ad4\u4e2d\uff0c\u5305\u542b\u4e86\u5b83\u61c9\u8a72\u8655\u7406\u7684\u8cc7\u6599\uff0c\u4ee5\u53ca\u8655\u7406\u9019\u4e9b\u8cc7\u6599\u7684\u529f\u80fd\u3002\u9019\u4e9b\u529f\u80fd\u662f\u70ba\u4e86\u8655\u7406\u9019\u4e9b\u8cc7\u6599\u6240\u7522\u751f\u7684\u3002\u6240\u4ee5\uff0c\u5728\u64b0\u5beb\u7559\u8a00\u7248\u7684\u7a0b\u5f0f\u6642\uff0c\u6211 \u5011\u8981\u628a\u7559\u8a00\u7248\u7576\u4f5c\u662f\u4e00\u500b\u81ea\u7d66\u81ea\u8db3\u7684\u500b\u9ad4\u3002\u628a\u7a0b\u5f0f\u6240\u8981\u89e3\u6c7a\u7684\u554f\u984c\uff0c\u5b9a\u7fa9\u6210\u70ba\u500b\u5225\u7684\u500b\u9ad4\uff0c\u9019\u500b\u904e\u7a0b\u7a31\u4e4b\u70ba\u62bd\u8c61\u5316(Abstraction)\u3002<\/p>\n

    \u7576 \u6211\u5011\u7684\u8166\u5b50\u88e1\uff0c\u6709\u4e86\u9019\u500b\u500b\u9ad4\u6240\u9700\u8981\u7684\u8cc7\u6599\u4ee5\u53ca\u529f\u80fd\u5f8c\uff0c\u6211\u5011\u5c31\u53ef\u4ee5\u5c08\u6ce8\u65bc\u5b9a\u7fa9\u9019\u500b\u500b\u9ad4\u7684\u985e\u5225\u3002\u628a\u500b\u9ad4\u7684\u8cc7\u6599\uff0c\u5b9a\u7fa9\u6210\u985e\u5225\u7684\u5c6c\u6027\uff1b\u628a\u500b\u9ad4\u7684\u529f\u80fd\uff0c\u5b9a\u7fa9\u6210\u985e\u5225\u7684 \u65b9\u6cd5\u3002\u5728\u5b9a\u7fa9\u985e\u5225\u6642\uff0c\u5148\u5225\u7ba1\u5916\u754c\u7684\u7a0b\u5f0f\u5982\u4f55\u904b\u4f5c\uff0c\u5168\u5fc3\u5168\u529b\u5c08\u6ce8\u65bc\u5982\u4f55\u6309\u7167\u9019\u500b\u500b\u9ad4\u7684\u9700\u6c42\uff0c\u5beb\u597d\u9019\u500b\u985e\u5225\u3002\u985e\u5225\u5b9a\u7fa9\u5b8c\u4e4b\u5f8c\uff0c\u5916\u754c\u7684\u7a0b\u5f0f\uff0c\u4fbf\u53ef\u85c9\u7531\u7269\u4ef6\u8b8a\u6578\uff0c \u4f86\u4f7f\u7528\u9019\u500b\u6211\u5011\u5b9a\u7fa9\u7684\u985e\u5225(\u4f7f\u7528\u8005\u5b9a\u7fa9\u7684\u8cc7\u6599\u578b\u614b)\u3002\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\uff0c\u540d\u7a31\u4e0a\u96d6\u7136\u662f\u7269\u4ef6\uff0c\u4f46\u662f\uff0c\u5be6\u969b\u4e0a\uff0c\u7a0b\u5f0f\u8a2d\u8a08\u5e2b\u5927\u90e8\u5206\u7684\u5fc3\u529b\uff0c\u5728\u65bc\u627e\u51fa\u554f\u984c\u4e2d\u7684\u500b \u9ad4\uff0c\u5b9a\u7fa9\u9019\u500b\u500b\u9ad4\u7684\u985e\u5225\u3002\u4f7f\u7528\u9019\u985e\u5225\u7684\u7a0b\u5f0f\u90e8\u5206\uff0c\u53cd\u800c\u82b1\u7684\u6642\u9593\u4e0d\u591a\u3002<\/p>\n

    \u5728\u4e0b\u4e00\u7bc0\u4e2d\uff0c\u6211\u5011\u5c07\u4f7f\u7528\u5be6\u969b\u7684\u4f8b\u5b50\uff0c\u4f86\u5be6\u4f5c PHP\u7684\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\u3002<\/p>\n

     <\/p>\n<\/td>\n<\/tr>\n

\n
PHP \u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\u5be6\u4f8b\u6f14\u7df4 <\/p>\n
<\/td>\n<\/tr>\n
\n

\u8aaa\u660e\uff1a<\/p>\n

\u5728\u9019\u4e00\u7bc0\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u7bc4\u4f8b\uff0c\u4f86\u5b78\u7fd2\u5982\u4f55\u64b0\u5beb\u985e\u5225\uff1a<\/p>\n

    \n
  1. \u985e\u5225\u7684\u8a9e\u6cd5\u7d50\u69cb\u3002<\/li>\n
  2. \u5c01\u88dd\uff1a\u5b9a\u7fa9\u5c6c\u6027\u53ca\u65b9\u6cd5\u3002<\/li>\n
  3. \u4f7f\u7528\u7269\u4ef6\uff1a\u985e\u5225\u7684\u5be6\u4f8b\u5316\u3002<\/li>\n
  4. \u7e7c\u627f\u3002<\/li>\n<\/ol>\n<\/td>\n<\/tr>\n
\u4e00\u3001\u985e\u5225\u7684\u8a9e\u6cd5\u7d50\u69cb<\/td>\n<\/tr>\n
\n

class \u985e\u5225\u540d\u7a31 [extends][\u7236\u985e\u5225\u540d\u7a31]{<\/p>\n

\n

\u985e\u5225\u7684\u5b9a\u7fa9<\/p>\n<\/blockquote>\n

}<\/p>\n<\/td>\n<\/tr>\n

\n

\u8aaa\u660e\uff1a<\/p>\n

    \n
  1. \u5b9a\u7fa9\u985e\u5225\u6642\uff0c\u5728 class \u4fdd\u7559\u5b57\u4e4b\u5f8c\uff0c\u662f\u4f7f\u7528\u8005\u6240\u5b9a\u7fa9\u7684\u985e\u5225\u540d\u7a31\u3002<\/li>\n
  2. \u5982\u679c\uff0c\u6240\u5b9a\u7fa9\u7684\u985e\u5225\u8981\u7e7c\u627f\u5176\u4ed6\u985e\u5225\u6642\uff0c\u9700\u52a0\u4e0a extends \u4fdd\u7559\u5b57\uff0c\u7136\u5f8c\uff0c\u52a0\u4e0a\u7236\u985e\u5225\u7684\u540d\u7a31\u3002\u5426\u5247\uff0c\u7701\u7565 extends\u548c\u7236\u985e\u5225\u540d\u7a31\u3002<\/li>\n
  3. \u4e4b\u5f8c\u662f\u7531 { \u548c }\u6240\u5305\u570d\u7684\u985e\u5225\u5b9a\u7fa9\u3002\u5728\u9019\u88e1\uff0c\u985e\u5225\u7684\u5b9a\u7fa9\uff0c\u5305\u62ec\u4e86\u5c6c\u6027\u53ca\u65b9\u6cd5\u3002 <\/li>\n<\/ol>\n<\/td>\n<\/tr>\n
\u4e8c\u3001\u5c01\u88dd\uff1a\u5b9a\u7fa9\u5c6c\u6027\u53ca\u65b9\u6cd5\u3002<\/td>\n<\/tr>\n
\n

class \u985e\u5225\u540d\u7a31 [extends][\u7236\u985e\u5225\u540d\u7a31]{<\/p>\n

\n

\/\/ \u5c6c\u6027\u7684\u5b9a\u7fa9<\/p>\n

var $\u8b8a\u6578\u540d\u7a31;<\/p>\n

\/\/ \u65b9\u6cd5\u7684\u5b9a\u7fa9<\/p>\n

function \u65b9\u6cd5\u540d\u7a31([\u53c3\u6578\u5217]){<\/p>\n

}<\/p>\n<\/blockquote>\n

}<\/p>\n<\/td>\n<\/tr>\n

\n

\u8aaa\u660e\uff1a<\/p>\n

    \n
  1. \u5b9a\u7fa9\u985e\u5225\u7684\u500b\u5225\u5c6c\u6027\u6642\uff0c\u524d\u9762\u5fc5\u9808\u52a0 var \u4fdd\u7559\u5b57\u3002\u4ee3\u8868\u9019\u8b8a\u6578\u662f\u9019\u500b\u985e\u5225\u7684\u5c6c\u6027\u3002<\/li>\n
  2. \u5b9a\u7fa9\u5c6c\u6027\u6642\uff0c\u53ef\u4ee5\u7d66\u521d\u59cb\u503c\u3002<\/li>\n
  3. \u5b9a\u7fa9\u65b9\u6cd5\u6642\uff0c\u898f\u5247\u540c\u51fd\u5f0f\u3002<\/li>\n
  4. \u5728\u65b9\u6cd5\u4e2d\uff0c\u5982\u679c\u8981\u5b58\u53d6\u985e\u5225\u7684\u5c6c\u6027\u6642\uff0c\u5fc5\u9808\u7528 $this->\u8b8a\u6578\u540d\u7a31<\/font> \u9019\u500b\u683c\u5f0f\u3002\u8b8a\u6578\u540d\u7a31\u5728\u9019\u88e1\uff0c\u4e0d\u53ef\u4ee5\u52a0 $\u7b26\u865f\u3002<\/li>\n
  5. \u5982\u679c\uff0c\u985e\u5225\u4e2d\u7684\u65b9\u6cd5\u540d\u7a31\u8207\u985e\u5225\u540d\u7a31\u76f8\u540c\u6642\uff0c\u9019\u500b\u65b9\u6cd5\u7a31\u4e4b\u70ba\u9019\u500b\u985e\u5225\u7684\u5efa\u69cb\u65b9\u6cd5\u3002\u5efa\u69cb\u65b9\u6cd5\u5728\u985e\u5225\u88ab\u5be6\u4f8b\u5316\u6642\u57f7\u884c\u3002\u985e\u5225\u5be6\u4f8b\u5316\uff0c\u8aaa\u767d\u4e00\u9ede\uff0c\u5c31\u662f\u5728\u5916\u754c\u7684\u7a0b\u5f0f\u4e2d\uff0c\u7522\u751f\u9019\u500b\u985e\u5225\u7684\u7269\u4ef6\u8b8a\u6578\u3002 <\/li>\n<\/ol>\n<\/td>\n<\/tr>\n
\u7bc4\u4f8b\uff1a\u5b9a\u7fa9\u985e\u5225<\/td>\n<\/tr>\n
\n
<?php
\/* \u6a94\u540d\uff1a111_01.php
\u5b9a\u7fa9 Dog \u985e\u5225
*\/

class Dog{
     var $food = '\u9aa8\u982d';
     var $name;
<\/pre>\n
     function Dog(){
          echo '\u7522\u751f Dog \u985e\u5225\u7684\u7269\u4ef6\u6642\uff0c\u4fbf\u6703\u547c\u53eb\u9019\u500b\u65b9\u6cd5(\u5efa\u69cb\u65b9\u6cd5)';
     }<\/pre>\n
     function Eat(){
          echo $this->name.'\u5403'.$this->food;
     }
}
?>

<\/pre>\n<\/td>\n<\/tr>\n
\u4e09\u3001\u4f7f\u7528\u7269\u4ef6\uff1a\u985e\u5225\u7684\u5be6\u4f8b\u5316\u3002<\/td>\n<\/tr>\n
\n
\/\/ \u7522\u751f\u7269\u4ef6\u6642
     $\u7269\u4ef6\u8b8a\u6578\u540d\u7a31 = new \u985e\u5225\u540d\u7a31;<\/pre>\n
\/\/ \u547c\u53eb\u7269\u4ef6\u65b9\u6cd5\u6216\u5b58\u53d6\u5c6c\u6027\u6642
     $\u7269\u4ef6\u8b8a\u6578\u540d\u7a31->\u7269\u4ef6\u7684\u65b9\u6cd5\u6216\u5c6c\u6027;
             <\/pre>\n<\/td>\n<\/tr>\n
\n

\u8aaa\u660e\uff1a<\/p>\n

    \n
  1. \u8981\u7522\u751f\u7269\u4ef6\u6642\uff0c\u5fc5\u9808\u4ee5\u4e00\u500b\u8b8a\u6578\u4f86\u5b58\u653e\u7269\u4ef6\u3002<\/li>\n
  2. \u5fc5\u9808\u4f7f\u7528 new \u4fdd\u7559\u5b57\u4f86\u7522\u751f\u7269\u4ef6\u3002\u7522\u751f\u7269\u4ef6\u6642\uff0c\u6703\u57f7\u884c\u9019\u500b\u7269\u4ef6\u7684\u5efa\u69cb\u65b9\u6cd5\u3002<\/li>\n
  3. \u5b58\u53d6\u7269\u4ef6\u7684\u5c6c\u6027\u6216\u547c\u53eb\u7269\u4ef6\u65b9\u6cd5\u6642\uff0c\u7269\u4ef6\u8207\u5176\u6210\u54e1\u4e4b\u9593\uff0c\u5fc5\u9808\u52a0 -><\/font>\u3002<\/li>\n
  4. \u7269\u4ef6\u7684\u5c6c\u6027\u4e4b\u524d\uff0c\u4e0d\u53ef\u52a0 $ \u7b26\u865f\u3002 <\/li>\n<\/ol>\n<\/td>\n<\/tr>\n
\u7bc4\u4f8b\uff1a\u4f7f\u7528\u7269\u4ef6<\/td>\n<\/tr>\n
\n

\u7a0b\u5f0f\u78bc\uff1a<\/p>\n

<?php
\/* \u6a94\u540d\uff1a111_02.php
\t\u4f7f\u7528 Dog \u985e\u5225
*\/
\/\/ \u542b\u62ec 111_01.php \u5b9a\u7fa9 Dog \u985e\u5225\u7684PHP\u6a94
include_once('111_01.php');<\/pre>\n
\/\/ \u7522\u751f Dog \u985e\u5225\u7684\u7269\u4ef6
$mydog = new Dog;
$mydog->name = '\u4f86\u798f';
echo '<br>';
$mydog->Eat();
?><\/pre>\n<\/td>\n<\/tr>\n
\u57f7\u884c\u7a0b\u5f0f<\/a><\/td>\n<\/tr>\n
\u56db\u3001\u7e7c\u627f<\/td>\n<\/tr>\n
\n

\u8aaa\u660e\uff1a<\/p>\n

    \n
  1. \u7576\u5b50\u985e\u5225\u7e7c\u627f\u7236\u985e\u5225\u6642\uff0c\u5b50\u985e\u5225\u53d6\u5f97\u7236\u985e\u5225\u6240\u6709\u7684\u6210\u54e1(\u5c6c\u6027\u53ca\u65b9\u6cd5)\u3002<\/li>\n
  2. \u5728\u5b50\u985e\u5225\u7684\u65b9\u6cd5\uff0c\u8981\u547c\u53eb\u7236\u985e\u5225\u7684\u65b9\u6cd5\u6642\uff0c\u4f7f\u7528 $this->\u7236\u985e\u5225\u7684\u65b9\u6cd5\u540d\u7a31\u3002<\/li>\n
  3. \u7236\u985e\u5225\u901a\u5e38\u53ea\u5b9a\u7fa9\u901a\u7528\u7684\u6210\u54e1\u3002<\/li>\n
  4. \u5b50\u985e\u5225\u5ef6\u4f38\u7236\u985e\u5225\u539f\u6709\u7684\u529f\u80fd\uff0c\u53ef\u53e6\u884c\u5b9a\u7fa9\u5c08\u5c6c\u65bc\u5b50\u985e\u5225\u7684\u529f\u80fd\u3002<\/li>\n
  5. \u7576\u7236\u985e\u5225\u7684\u6210\u54e1\u6539\u8b8a\u6642\uff0c\u5b50\u985e\u5225\u7684\u6210\u54e1\u8ddf\u8457\u6539\u8b8a\u3002\u6240\u4ee5\uff0c\u85c9\u8457\u7e7c\u627f\u7684\u95dc\u4fc2\uff0c\u53ef\u4ee5\u8b93\u6211\u5011\u7684\u7a0b\u5f0f\u7dad\u8b77\u6027\u5927\u70ba\u63d0\u9ad8\u3002<\/li>\n<\/ol>\n<\/td>\n<\/tr>\n
\u7bc4\u4f8b\uff1a\u7e7c\u627f<\/td>\n<\/tr>\n
\n

\u7a0b\u5f0f\u78bc\uff1a<\/p>\n

<?php
\/* \u6a94\u540d\uff1a111_03.php
\t\u5b9a\u7fa9 Pet, Dog, Cat \u985e\u5225
*\/<\/pre>\n
class Pet{
     var $food;
     var $name;
     var $language;<\/pre>\n
     function Pet(){
          echo '\u7522\u751f Pet \u985e\u5225\u7684\u7269\u4ef6\u6642\uff0c\u4fbf\u6703\u547c\u53eb\u9019\u500b\u65b9\u6cd5(\u5efa\u69cb\u65b9\u6cd5)';
     }<\/pre>\n
     function Eat(){
          echo $this->name.'\u5403'.$this->food;
     }<\/pre>\n
     function Speak(){
          echo $this->name.'\u8aaa'.$this->language;
     }
}<\/pre>\n
class Dog extends Pet{
     function Dog(){
          $this->food = '\u9aa8\u982d';
          $this->language = '\u6c6a\u6c6a';
          echo '\u7522\u751f Dog \u985e\u5225\u7684\u7269\u4ef6\u6642\uff0c\u4fbf\u6703\u547c\u53eb\u9019\u500b\u65b9\u6cd5(\u5efa\u69cb\u65b9\u6cd5)';
     }
}<\/pre>\n
class Cat extends Pet{
     function Cat(){
          $this->food = '\u9b5a';
          $this->language = '\u55b5\u55b5';
          echo '\u7522\u751f Cat \u985e\u5225\u7684\u7269\u4ef6\u6642\uff0c\u4fbf\u6703\u547c\u53eb\u9019\u500b\u65b9\u6cd5(\u5efa\u69cb\u65b9\u6cd5)<br>';
          $this->Pet();
     }<\/pre>\n
     function showFear(){
          echo $this->name.'\u6015\u6c34';
     }
}
?><\/pre>\n
<?php
\/* \u6a94\u540d\uff1a111_04.php
   \u4f7f\u7528 Dog, Cat \u985e\u5225
*\/
\/\/ \u542b\u62ec 111_03.php \u5b9a\u7fa9 Pet, Dog, Cat \u985e\u5225\u7684PHP\u6a94
include_once('111_03.php');<\/pre>\n
\/\/ \u7522\u751f Dog \u985e\u5225\u7684\u7269\u4ef6
$mydog = new Dog;
$mydog->name = '\u4f86\u798f';
echo '<br>';
$mydog->Eat();
echo '<br>';
$mydog->Speak();
echo '<hr>';
$mycat = new Cat;
echo '<br>';
$mycat->Eat();
echo '<br>';
$mycat->Speak();
echo '<br>';
$mycat->showFear();
?><\/pre>\n<\/td>\n<\/tr>\n
\u57f7\u884c\u7a0b\u5f0f<\/a><\/td>\n<\/tr>\n
\n
\u5c07\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\u61c9\u7528\u5728\u7559\u8a00\u7248\u7684\u8cc7\u6599\u5eab\u7db2\u9801 <\/p>\n
<\/td>\n<\/tr>\n
\n

\u8aaa\u660e\uff1a<\/p>\n

\u5728\u9019\u4e00\u7bc0\u7576\u4e2d\uff0c\u6211\u5011\u5c07\u628a\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\uff0c\u61c9\u7528\u5728\u7559\u8a00\u7248\u7684\u7db2\u9801\u7a0b\u5f0f\u4e2d\u3002<\/p>\n

\u6211\u5011\u6309\u7167\u4ee5\u4e0b\u7684\u6b65\u9a5f\uff0c\u4f86\u4fee\u6539\u7559\u8a00\u7248\u7684\u7a0b\u5f0f\uff1a<\/p>\n

    \n
  1. \u6e96\u5099\u5de5\u4f5c<\/li>\n
  2. \u7522\u751f\u7db2\u7ad9\u8a2d\u5b9a\u6a94\uff1aweb_config.php<\/li>\n
  3. \u7522\u751f\u8cc7\u6599\u5eab\u985e\u5225\u6a94\uff1adb.php<\/li>\n
  4. \u7522\u751f\u61c9\u7528\u7a0b\u5f0f\u8a2d\u5b9a\u6a94\uff1aapp_config.php<\/li>\n
  5. \u7522\u751f\u7559\u8a00\u7248\u985e\u5225\u6a94\uff1aGuestbook.php<\/li>\n
  6. \u4fee\u6539\u539f\u672c\u7684\u7a0b\u5f0f\uff1a index.php, add.php, update.php, delete.php<\/li>\n<\/ol>\n<\/td>\n<\/tr>\n
\u4e00\u3001\u6e96\u5099\u5de5\u4f5c<\/td>\n<\/tr>\n
\n

\u8aaa\u660e\uff1a<\/p>\n

\u5c07\u4e4b\u524d110\u8ab2\u7a0b\u6240\u505a\u597d\u7684PHP\u7a0b\u5f0f\uff0c\u653e\u5728\u53e6\u4e00\u500b\u65b0\u7684\u76ee\u9304 guestbook111 \u4e4b\u4e0b\u3002\u7136\u5f8c\uff0c\u5728\u7db2\u7ad9\u7684\u6839\u76ee\u9304\u5e95\u4e0b\uff0c\u5efa\u7acb\u4e00\u500b inc \u7684\u76ee\u9304\u3002\u5b58\u653e\u7db2\u7ad9\u6574\u9ad4\u5404\u9805\u8a2d\u5b9a\u7684\u6a94\u6848\uff0c\u4ee5\u53ca\u5b58\u53d6\u8cc7\u6599\u5eab\u7269\u4ef6\u7684\u7236\u985e\u5225\u6a94\u6848\u3002 <\/p>\n<\/td>\n<\/tr>\n

\u8907\u88fd\u6a94\u6848\uff1a<\/td>\n<\/tr>\n
\n
    \n
  1. \u4f7f\u7528putty\u9023\u7dda\u5230\u4f3a\u670d\u4e3b\u6a5f\u3002<\/li>\n
  2. \u8f38\u5165\u4ee5\u4e0b\u7684\u547d\u4ee4\uff0c\u9032\u5165 public_html \u76ee\u9304\uff1a
    cd public_html <\/li>\n
  3. \u8f38\u5165\u4ee5\u4e0b\u7684\u547d\u4ee4\uff0c\u7522\u751f\u65b0\u7684\u76ee\u9304 guestbook111\uff0c\u4e26\u5c07 guestbook110 \u4e2d\u6240\u6709\u6a94\u6848\uff0c
    \u8907\u88fd\u5230guestbook111\uff1a
    cp -r guestbook110 guestbook111<\/li>\n
  4. \u8f38\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u7522\u751f\u65b0\u7684\u76ee\u9304 inc\u3002\u7528\u4f86\u5b58\u653e\u6574\u9ad4\u7db2\u7ad9\u7684\u8a2d\u5b9a\u6a94\u53ca\u7236\u985e\u5225\u6a94\u3002
    mkdir inc<\/li>\n
  5. \u8f38\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u7522\u751f web_config.php \u548c db.php \u9019\u5169\u500b\u6a94\u6848\u3002
    touch inc\/web_config.php inc\/db.php<\/li>\n<\/ol>\n<\/td>\n<\/tr>\n
\u4e8c\u3001\u7522\u751f\u7db2\u7ad9\u8a2d\u5b9a\u6a94\uff1aweb_config.php<\/td>\n<\/tr>\n
\n

\u8aaa\u660e\uff1a<\/p>\n

\u5728 web_config.php \u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e00\u4e9b\u6709\u95dc\u6574\u9ad4\u7db2\u7ad9\u5404\u542b\u62ec\u76ee\u9304\u6240\u9700\u7684\u53c3\u6578\uff0c\u4ee5\u53ca\u5b58\u53d6\u8cc7\u6599\u5eab\u7684\u8a2d\u5b9a\uff0c\u65b9\u4fbf\u7db2\u7ad9\u7684\u7ba1\u7406\u8005\uff0c\u65e5\u5f8c\u4fee\u6539\u7db2\u7ad9\u7684\u8a2d\u5b9a\u3002<\/p>\n<\/td>\n<\/tr>\n

\n

\u7a0b\u5f0f\u78bc\uff1a<\/p>\n

<?php
\/* \u6a94\u540d\uff1aweb_config.php
\t\u5b9a\u7fa9\u5404\u76ee\u9304\u53ca\u8cc7\u6599\u5eab\u53c3\u6578\u7684\u5e38\u6578
*\/<\/pre>\n
\/\/ \u5b9a\u7fa9\u7db2\u7ad9\u76ee\u9304\u7684\u8a2d\u5b9a
define(WEB_DIR, '\/home\/lib13\/public_html\/');
define(INCLUDE_DIR, WEB_DIR.'inc\/');<\/pre>\n
\/\/ \u5b9a\u7fa9\u8cc7\u6599\u5eab\u7684\u8a2d\u5b9a
define(DB_HOST, 'localhost');
define(DB_USER, 'lib13');
define(DB_PASSWORD, 'mypassword');
define(DB_DATABASE, 'lib13');
?><\/pre>\n<\/td>\n<\/tr>\n
\u4e09\u3001\u7522\u751f\u8cc7\u6599\u5eab\u985e\u5225\u6a94\uff1adb.php<\/td>\n<\/tr>\n
\n

\u8aaa\u660e\uff1a<\/p>\n

\u5728 db.php \u6a94\u6848\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u5b58\u53d6\u8cc7\u6599\u5eab\u7684\u7236\u985e\u5225\uff0c\u4f9b\u7db2\u7ad9\u4e2d\u6240\u6709\u9700\u8981\u5b58\u53d6\u8cc7\u6599\u5eab\u7684\u985e\u5225\u7e7c\u627f\u4e4b\u7528\u3002\u5728\u9019\u500b\u985e\u5225\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u8cc7\u6599\u5eab\u9023\u7dda\u53ca\u9078\u7528\u8cc7\u6599\u5eab\u7684\u65b9\u6cd5 init()\u3002\u540c\u6642\uff0c\u6211\u5011\u4e5f\u64f7\u53d6\u51fa\u5b58\u53d6\u8cc7\u6599\u5eab\u7684\u901a\u7528\u529f\u80fd\uff0c\u5206\u5225\u4f9d\u7167\u529f\u80fd\u5b9a\u7fa9\u6210\u5404\u7a2e\u65b9\u6cd5\u3002\u900f\u904e\u7e7c\u627f\u9019\u500b\u7236\u985e\u5225\uff0c\u5176\u4ed6\u5b50\u985e\u5225\u5c31\u53ef\u7e7c\u627f\u7236\u985e\u5225\u7684\u65b9\u6cd5\uff0c\u7121\u9808\u518d\u500b\u5225 \u5b9a\u7fa9\u5b58\u53d6\u8cc7\u6599\u5eab\u7684\u65b9\u6cd5\u3002\u5b50\u985e\u5225\u53ea\u9700\u5b9a\u7fa9\uff0c\u500b\u5225\u985e\u5225\u6240\u9700\u7684\u7279\u5b9a\u529f\u80fd\u3002\u9019\u6a23\u5b50\u7684\u505a\u6cd5\uff0c\u4e00\u4f86\uff0c\u6e1b\u8f15\u4fee\u6539\u7a0b\u5f0f\u7684\u8ca0\u64d4\uff0c\u63d0\u9ad8\u6574\u500b\u7db2\u7ad9\u7a0b\u5f0f\u7684\u7dad\u8b77\u4fbf\u5229\u6027\u3002\u4e8c\u4f86\uff0c\u8981\u65b0\u589e \u5176\u4ed6\u985e\u4f3c\u7684\u8cc7\u6599\u5eab\u7db2\u9801\u6642\uff0c\u53ef\u4ee5\u900f\u904e\u7e7c\u627f\u7236\u985e\u5225\u7684\u65b9\u5f0f\uff0c\u6e1b\u5c11\u7a0b\u5f0f\u78bc\u7684\u64b0\u5beb\uff0c\u63d0\u9ad8\u7a0b\u5f0f\u958b\u767c\u7684\u6548\u7387\u3002<\/p>\n<\/td>\n<\/tr>\n

\n

\u7a0b\u5f0f\u78bc\uff1a<\/p>\n

<?php
\/* \u6a94\u540d\uff1adb.php
\u5b9a\u7fa9\u8cc7\u6599\u5eab\u7236\u985e\u5225\uff0c\u4f9b\u5176\u4ed6\u9700\u8981\u5b58\u53d6\u8cc7\u6599\u5eab\u7684\u985e\u5225\u7e7c\u627f\u4e4b\u7528\u3002
*\/<\/pre>\n
class DB{
     var $add_sql;
     var $update_sql;
     var $delete_sql;
     var $select_sql;
     var $retrieve_sql;<\/pre>\n
     function DB(){
          $this->init();
     }<\/pre>\n
     function init(){
          mysql_pconnect(DB_HOST, DB_USER, DB_PASSWORD) 
                 || die('\u7121\u6cd5\u8207\u8cc7\u6599\u5eab\u5efa\u7acb\u9023\u7d50');
          mysql_select_db(DB_DATABASE) 
                 || die('\u7121\u6cd5\u9078\u64c7\u8cc7\u6599\u5eab\uff1a'.DB_DATABASE);
     }<\/pre>\n
     function Add(){
          $this->setSQL();
          return mysql_query($this->add_sql);
     }<\/pre>\n
     function Update(){
          $this->setSQL();
          return mysql_query($this->update_sql);
     }<\/pre>\n
     function Delete(){
          $this->setSQL();
          return mysql_query($this->delete_sql);
     }<\/pre>\n
     function Select(){
          $this->setSQL();
          return $this->recordset($this->select_sql);
     }
               
     function recordset($sql){
          $rs = array();
          $result = mysql_query($sql);
          if($result){
               while($record = mysql_fetch_assoc($result)){
               array_push($rs, $record);
               }
               return $rs;
          }else{
               return false;
          }
     }<\/pre>\n
     function Retrieve(){
          $this->setSQL();
          $result = mysql_query($this->retrieve_sql);
          if($result and mysql_num_rows($result) == 1){
               return mysql_fetch_assoc($result);
          }else{
               return false;
          }
     }
}
?><\/pre>\n<\/td>\n<\/tr>\n
\u56db\u3001\u7522\u751f\u61c9\u7528\u7a0b\u5f0f\u8a2d\u5b9a\u6a94\uff1aapp_config.php<\/td>\n<\/tr>\n
\n

\u8aaa\u660e\uff1a<\/p>\n

app_config.php \u9019\u500b\u6a94\u6848\uff0c\u5b9a\u7fa9\u4e86\u6709\u95dc\u7559\u8a00\u7248\u6240\u6709\u7db2\u9801\u7a0b\u5f0f\u7684\u8a2d\u5b9a\u3002\u5176\u4ed6\u7559\u8a00\u7248\u7684\u7db2\u9801\uff0c\u53ea\u9700\u542b\u62ec\u9019\u500b\u6a94\u6848\uff0c\u4fbf\u53ef\u4ee5\u4f7f\u7528\u5b9a\u7fa9\u597d\u7684\u5404\u7a2e\u8a2d\u5b9a\u3002<\/p>\n

\u85c9\u7531\u4f7f\u7528\u76ee\u9304\u4f86\u5b58\u653e\u5404\u76f8\u95dc\u5b50\u7cfb\u7d71\u7684\u65b9\u5f0f\uff0c\u53ef\u4ee5\u8b93\u6211\u5011\u7db2\u7ad9\u7684\u529f\u80fd\u6a21\u7d44\u5316\uff0c\u65e5\u5f8c\u9700\u8981\u589e\u6e1b\u529f\u80fd\u6642\uff0c\u53ea\u8981\u65b0\u589e\u6216\u522a\u9664\u76ee\u9304\u5373\u53ef\u3002\u5728\u5404\u76ee\u9304\u4e2d\uff0c\u653e\u7f6e\u500b\u5225\u7684 app_config.php \u6a94\uff0c\u4f86\u8ca0\u8cac\u500b\u5225\u5b50\u7cfb\u7d71\u7684\u74b0\u5883\u8a2d\u5b9a\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u6607\u5404\u6a21\u7d44\u7684\u53ef\u651c\u6027\uff0c\u65b9\u4fbf\u7db2\u7ad9\u7a0b\u5f0f\u958b\u767c\u7684\u7ba1\u7406\u3002 <\/p>\n<\/td>\n<\/tr>\n

\n

\u7a0b\u5f0f\u78bc\uff1a<\/p>\n

<?php
\/* \u6a94\u540d\uff1aapp_config.php
\t\u5b9a\u7fa9\u9019\u500b\u76ee\u9304\u6240\u9700\u7684\u5404\u9805\u8a2d\u5b9a
*\/<\/pre>\n
\/\/ \u542b\u62ec\u7db2\u7ad9\u8a2d\u5b9a\u6a94 web_config.php
include_once('..\/inc\/web_config.php');
?><\/pre>\n<\/td>\n<\/tr>\n
\u4e94\u3001\u7522\u751f\u7559\u8a00\u7248\u985e\u5225\u6a94\uff1aGuestbook.php<\/td>\n<\/tr>\n
\n

\u8aaa\u660e\uff1a<\/p>\n

Guestbook.php\uff0c\u5b9a\u7fa9\u4e86\u7559\u8a00\u7248\u6240\u9700\u8981\u4f7f\u7528\u7684\u985e\u5225 Guestbook\u3002Guestbook\u985e\u5225\u85c9\u7531\u7e7c\u627f\u7236\u985e\u5225 DB\uff0c\u53d6\u5f97\u4e86\u5b58\u53d6\u8cc7\u6599\u5eab\u7684\u901a\u7528\u529f\u80fd\u3002\u6240\u4ee5\uff0c\u5728\u9019\u500b\u985e\u5225\uff0c\u53ea\u8981\u5b9a\u7fa9\u5c08\u5c6c\u65bc\u7559\u8a00\u7248\u7684\u5404\u7a2e\u5c6c\u6027\u53ca\u529f\u80fd\u5373\u53ef\u3002 <\/p>\n<\/td>\n<\/tr>\n

\n

\u7a0b\u5f0f\u78bc\uff1a<\/p>\n

<?php
\/* \u6a94\u540d\uff1aGuestbook.php
\t\u5b9a\u7fa9 Guestbook \u985e\u5225
*\/<\/pre>\n
\/\/ \u85c9\u7531\u542b\u62ec\u5b50\u7cfb\u7d71\u7684\u8a2d\u5b9a\u6a94\uff0c\u53d6\u5f97\u7db2\u7ad9\u53ca\u5b50\u7cfb\u7d71\u7684\u5404\u7a2e\u8a2d\u5b9a
include_once('app_config.php');<\/pre>\n
\/\/ \u542b\u62ec\u7236\u985e\u5225 db.php 
include_once(INCLUDE_DIR.'db.php');<\/pre>\n
class Guestbook extends DB{
\/\/ \u5b9a\u7fa9\u5c6c\u6027
\/ \u901a\u5e38\u53ef\u4ee5\u7528\u6240\u8981\u5b58\u53d6\u7684\u8cc7\u6599\u8868\u7684\u5404\u500b\u6b04\u4f4d\uff0c\u4f5c\u70ba\u9019\u500b\u985e\u5225\u7684\u5c6c\u6027
     var $id;
     var $name;
     var $email;
     var $web;
     var $content;
     var $post_time;
     var $fk_icon;<\/pre>\n
 \/\/ \u985e\u5225\u7684\u5efa\u69cb\u65b9\u6cd5
     function Guestbook(){
          $this->DB();
     }
               
\/\/ setProperties \u65b9\u6cd5\u7528\u4f86\u9023\u63a5\u8868\u55ae\u7684\u6b04\u4f4d\u4ee5\u53ca\u985e\u5225\u7684\u5c6c\u6027
     function setProperties(){
          $this->id = $_POST[id];
          $this->name = $_POST[name];
          $this->email = $_POST[email];
          $this->web = $_POST[web];
          $this->content = $_POST[content];
     }<\/pre>\n
 \/\/ setSQL \u65b9\u6cd5\u5b9a\u7fa9\u5b58\u53d6\u8cc7\u6599\u8868\u6240\u9700\u7684\u5404\u500b SQL \u547d\u4ee4
     function setSQL(){
          $this->add_sql = 'INSERT INTO Guestbook "; 
          $this->add_sql .= "(name, email, web, content, post_time) ';
          $this->add_sql .= "VALUES('$this->name','$this->email','$this->web',";
          $this->add_sql .= "'$this->content',NOW())";
          $this->update_sql = "UPDATE Guestbook SET name='$this->name', ";
          $this->update_sql .= "email='$this->email', web='$this->web', ";
          $this->update_sql .= "content='$this->content' WHERE id=$this->id";
          $this->delete_sql = "DELETE FROM Guestbook WHERE id=$this->id";
          $this->select_sql = "SELECT * FROM Guestbook ORDER BY post_time DESC";
          $this->retrieve_sql = "SELECT * FROM Guestbook WHERE id=$this->id";
     }
}
?><\/pre>\n<\/td>\n<\/tr>\n
\u516d\u3001\u4fee\u6539\u539f\u672c\u7684\u7a0b\u5f0f\uff1a index.php, add.php, update.php, delete.php<\/td>\n<\/tr>\n
\n

\u8aaa\u660e\uff1a<\/p>\n

\u5728\u9019\u88e1\uff0c\u6211\u5011\u542b\u62ec Guestbook.php\u6a94\u6848\u3002\u85c9\u7531\u7522\u751f Guestbook\u7684\u7269\u4ef6 $obj\uff0c\u6309\u7167\u5404\u7db2\u9801\u7a0b\u5f0f\u6240\u9700\u8981\u7684\u529f\u80fd\uff0c \u900f\u904e $obj\u7269\u4ef6\uff0c\u547c\u53ebGuestbook\u6240\u5b9a\u7fa9\u53ca\u7e7c\u627f\u7684\u5404\u500b\u65b9\u6cd5\u3002 <\/p>\n<\/td>\n<\/tr>\n

index.php<\/a><\/td>\n<\/tr>\n
add.php<\/a><\/td>\n<\/tr>\n
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