{"id":30411,"date":"2023-02-09T16:54:10","date_gmt":"2024-03-11T08:26:09","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/php5%e5%92%8cphp7%e7%9a%84%e5%b7%ae%e5%bc%82%ef%bc%88%e6%89%a9%e5%b1%95%e9%83%a8%e5%88%86%ef%bc%89\/"},"modified":"2025-08-12T19:03:21","modified_gmt":"2025-08-12T11:03:21","slug":"php5%e5%92%8cphp7%e7%9a%84%e5%b7%ae%e5%bc%82%ef%bc%88%e6%89%a9%e5%b1%95%e9%83%a8%e5%88%86%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/php5%e5%92%8cphp7%e7%9a%84%e5%b7%ae%e5%bc%82%ef%bc%88%e6%89%a9%e5%b1%95%e9%83%a8%e5%88%86%ef%bc%89\/","title":{"rendered":"PHP5\u548cPHP7\u7684\u5dee\u5f02\uff08\u6269\u5c55\u90e8\u5206\uff09"},"content":{"rendered":"

PHP5\u7528\u7684extension\u5728PHP7\u4e0a\u4e0d\u80fd\u8fd0\u884c\u800c\u4e0d\u4fee\u6539\u3002\u6839\u636e\u6211\u7684\u8c03\u67e5\uff0c\u8bb8\u591aextension\u4f3c\u4e4e\u662f\u5728\u53e6\u4e00\u4e2a\u5206\u652f\u4e0a\u8fdb\u884c\u5f00\u53d1\uff08\u4f8b\u5982APCu\u3001msgpack\u3001memcached\u7b49\uff09\u3002\u5728\u4f7f\u7528#if\u8fdb\u884c\u5206\u652f\u6761\u4ef6\u5224\u65ad\u5e76\u5b9e\u73b0\u53cc\u5411\u517c\u5bb9\u4e5f\u662f\u4e00\u9879\u8270\u5de8\u7684\u4efb\u52a1\u3002<\/p>\n

\u6211\u5199\u4e86\u4e00\u4e2a\u5b9e\u9a8c\u6027\u7684PHP7\u6269\u5c55\u201cphp7_explorer\u201d\u3002\u5728\u5199\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u518d\u6b21\u611f\u53d7\u5230\u4e86\u4e0ePHP5\u6269\u5c55\u7684\u4e0d\u540c\u4e4b\u5904\uff0c\u6240\u4ee5\u6211\u5c06\u5927\u81f4\u603b\u7ed3\u4e00\u4e0b\u8fd9\u4e9b\u533a\u522b\u3002<\/p>\n

\u4e0d\u518d\u9700\u8981\u5199”\u304a\u307e\u3058\u306a\u3044”\u4e86\u3002<\/h1>\n

\u5728PHP5\u4e4b\u524d\uff0c\u9700\u8981\u5728Zend API\u7684\u539f\u578b\u58f0\u660e\u7684\u6700\u540e\u6dfb\u52a0TSRMLS_DC\uff0c\u5e76\u5728\u8c03\u7528\u65f6\u53c2\u6570\u5217\u8868\u7684\u6700\u540e\u6dfb\u52a0TSRMLS_CC\uff0c\u8fd9\u662f\u4e00\u4e2a\u6240\u8c13\u7684”\u5492\u8bed”\u3002\u8fd9\u662f\u4e3a\u4e86\u652f\u6301ZTS\uff08Zend Thread Safety\uff09\uff0c\u53ea\u5728\u9700\u8981\u7684\u65f6\u5019\u624d\u4f20\u9012\u989d\u5916\u7684\u53c2\u6570\u7684\u5b8f\u5b9a\u4e49\u3002<\/p>\n

\u5728PHP7\u7684\u6539\u8fdb\u4e2d\u53d8\u5f97\u4e0d\u518d\u9700\u8981\u3002\u56e0\u6b64\uff0c\u5728PHP7\u7684\u6269\u5c55\u4e2d\u53ef\u4ee5\u66f4\u7b80\u6d01\u5730\u7f16\u5199\u3002\u5f53\u7136\uff0c\u5982\u679c\u662fPHP5\/7\u517c\u5bb9\u7684\u6269\u5c55\uff0c\u6309\u7167\u4ee5\u5f80\u7684\u65b9\u5f0f\u7f16\u5199\u4e5f\u80fd\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n

\u53ea\u6709\u51fd\u6570\u53c2\u6570\u5217\u8868\u4e2d\u7684\u201c\u5492\u8bed\u201d\u4e0d\u518d\u5b58\u5728\uff0cZTS\u652f\u6301\u672c\u8eab\u4ecd\u7136\u5b58\u5728\u3002\u6b64\u5916\uff0c\u8fd8\u9700\u8981\u6ce8\u610f\u5176\u4ed6\u5730\u65b9\u7684\u201c\u5492\u8bed\u201d\u53ef\u80fd\u6709\u4e9b\u53d8\u5316\u3002<\/p>\n

\u73b0\u5728\u6211\u4e60\u4ee5\u4e3a\u5e38\u7684\u578b\u53f7\u5df2\u7ecf\u6d88\u5931\u4e86\u3002<\/h1>\n

zend_uint \u5ec3\u6b62 \u2192 uint32_t \u3092\u4f7f\u3046\u3088\u3046\u306b<\/p>\n

\u7136\u800c\uff0c\u5176\u4e2d\u7684zend_ulong\u7b49\u9879\u5374\u4fdd\u7559\u4e86\u4e0b\u6765\uff0c\u8ba9\u4eba\u611f\u5230\u4e0d\u6ee1\u3002<\/p>\n

\u5f53\u5728\u4f7f\u7528zend_parse_parameters()\u51fd\u6570\u89e3\u6790\u5b57\u7b26\u4e32\u53c2\u6570\u65f6\uff0c\u7c7b\u578b\u53d1\u751f\u4e86\u53d8\u5316\u3002<\/h1>\n

\u5f53\u5728zend_parse_parameters()\u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e2d\u6307\u5b9a\u4e3a”s”\u65f6\uff0c\u53ef\u4ee5\u89e3\u91caPHP\u51fd\u6570\u7684\u5b57\u7b26\u4e32\u7c7b\u578b\u53c2\u6570\u5e76\u5c06\u5176\u8f6c\u6362\u4e3aC\u4e16\u754c\u7684\u53d8\u91cf\u503c\u3002<\/p>\n

\u7136\u800c\uff0c\u5728PHP5\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7\u4f20\u9012char **\u548cint *\u6765\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u503c\uff0c\u5e76\u5c06\u5176\u586b\u5145\u4e3a\u6240\u9700\u7684\u503c\u3002\u4f46\u662f\u4ecePHP7\u5f00\u59cb\uff0c\u8fd9\u79cd\u65b9\u5f0f\u5df2\u66f4\u6539\u4e3achar **\u548csize_t *\u3002\u7531\u4e8eint\u548csize_t\u572864\u4f4d\u73af\u5883\u4e0b\u5177\u6709\u4e0d\u540c\u7684\u5927\u5c0f\uff0c\u5982\u679c\u4e0d\u6ce8\u610f\u4f7f\u7528\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u610f\u60f3\u4e0d\u5230\u7684\u9519\u8bef\u3002\u8bf7\u52a1\u5fc5\u8c28\u614e\u4f7f\u7528\u3002<\/p>\n

\u8fd9\u4e2a\u6587\u5b57\u4e32\u80fd\u5426\u8f6c\u5316\u4e3azend_string *\u3002<\/h1>\n

\u5728\u67d0\u4e9bAPI\u4e2d\uff0cconst char *str, size_t str_len\u8fd9\u4e24\u4e2a\u53c2\u6570\u4f1a\u53d8\u6210zend_string *str\u7684\u4e00\u4e2a\u53c2\u6570\u3002\u800c\u5728\u53e6\u4e00\u4e2aAPI\u4e2d\uff0c\u4ecd\u7136\u4fdd\u6301\u539f\u6765\u7684\u4e24\u4e2a\u53c2\u6570\u3002\u6211\u4e0d\u77e5\u9053\u5728\u4f55\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u751f\u8fd9\u79cd\u53d8\u5316\u3002<\/p>\n

\u5173\u4e8e\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\uff0c\u7edf\u4e00\u89c4\u5b9a\u4e0d\u5305\u62ec\u6700\u540e\u7684\u7a7a\u5b57\u7b26\u3002<\/h1>\n

\u5728\u4e00\u90e8API\u4e2d\uff0cchar *\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u8ba1\u7b97\u65b9\u5f0f\u53d1\u751f\u4e86\u53d8\u5316\u3002\u4f8b\u5982\uff0cPHP5\u65f6\u4ee3\u65f6\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528strlen\u51fd\u6570\u6765\u8ba1\u7b97\u957f\u5ea6\u3002<\/p>\n

add_assoc_bool_ex<\/span>(<\/span>&<\/span>zv<\/span>,<\/span> \"foo\"<\/span>,<\/span> sizeof<\/span>(<\/span>\"foo\"<\/span>),<\/span> 0<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u4ecePHP7\u5f00\u59cb\uff0c\u8fd9\u88ab\u5199\u6210<\/p>\n
add_assoc_bool_ex<\/span>(<\/span>&<\/span>zv<\/span>,<\/span> \"foo\"<\/span>,<\/span> sizeof<\/span>(<\/span>\"foo\"<\/span>)<\/span> -<\/span> 1<\/span>,<\/span> 0<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u5728\u4e2d\u56fd\uff0c\u60a8\u53ef\u4ee5\u8fd9\u6837\u6765\u8f6c\u8ff0\u8fd9\u6bb5\u8bdd\uff1aPHP5\u548cPHP7\u4f7f\u7528\u76f8\u540c\u7684\u539f\u578b\u58f0\u660e\uff0c\u4f46\u53c2\u6570\u7684\u610f\u4e49\u5374\u6709\u6240\u4e0d\u540c\uff0c\u8fd9\u771f\u662f\u4ee4\u4eba\u6076\u5fc3\u3002\u6211\u4e00\u4e0d\u5c0f\u5fc3\u5c31\u4f1a\u751f\u6c14\u5730\u5927\u5e45\u4fee\u6539\u4ee3\u7801\uff0c\u4ee5\u4f7f\u7528zend_string\u3002<\/p>\n
\u6307\u9488\u53ef\u80fd\u4f1a\u51cf\u5c11\u4e24\u4e2a\u7ea7\u522b\uff0c\u4e5f\u53ef\u80fd\u51cf\u5c11\u4e00\u4e2a\u7ea7\u522b\uff0c\u6216\u8005\u4e0d\u51cf\u5c11\u3002<\/h1>\n
\u5728PHP7\u4e2d\uff0czval\u7684\u9ed8\u8ba4\u4f20\u9012\u65b9\u5f0f\u4ece\u6307\u9488\u4f20\u9012\u6539\u4e3a\u503c\u4f20\u9012\uff0c\u5bfc\u81f4\u5404\u79cdZend API\u7684\u53c2\u6570\u53d1\u751f\u4e86\u91cd\u5927\u53d8\u5316\u3002\u56e0\u6b64\uff0c\u9700\u8981\u91cd\u65b0\u7f16\u5199\u5927\u90e8\u5206API\u8c03\u7528\u90e8\u5206\u3002<\/p>\n
\u4f5c\u4e3a\u4e00\u4e2a\u4f8b\u5b50\uff0c\u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u8c03\u7528\u7528\u6237\u51fd\u6570\u7684API call_user_function_ex()\u3002<\/p>\n
ZEND_API<\/span> int<\/span> call_user_function_ex<\/span>(<\/span>HashTable<\/span> *<\/span>function_table<\/span>,<\/span>\r\n                                   zval<\/span> **<\/span>object_pp<\/span>,<\/span>\r\n                                   zval<\/span> *<\/span>function_name<\/span>,<\/span>\r\n                                   zval<\/span> **<\/span>retval_ptr_ptr<\/span>,<\/span>\r\n                                   zend_uint<\/span> param_count<\/span>,<\/span>\r\n                                   zval<\/span> **<\/span>params<\/span>[],<\/span>\r\n                                   int<\/span> no_separation<\/span>,<\/span>\r\n                                   HashTable<\/span> *<\/span>symbol_table<\/span> TSRMLS_DC<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u5728PHP7\u4e2d\uff0c\u5b83\u5df2\u7ecf\u6539\u53d8\u4e3a\u4ee5\u4e0b\u65b9\u5f0f\u3002<\/p>\n
ZEND_API<\/span> int<\/span> call_user_function_ex<\/span>(<\/span>HashTable<\/span> *<\/span>function_table<\/span>,<\/span>\r\n                                   zval<\/span> *<\/span>object<\/span>,<\/span>\r\n                                   zval<\/span> *<\/span>function_name<\/span>,<\/span>\r\n                                   zval<\/span> *<\/span>retval_ptr<\/span>,<\/span>\r\n                                   uint32_t<\/span> param_count<\/span>,<\/span>\r\n                                   zval<\/span> params<\/span>[],<\/span>\r\n                                   int<\/span> no_separation<\/span>,<\/span>\r\n                                   zend_array<\/span> *<\/span>symbol_table<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u9019\u500b\u6a23\u672c\u76f8\u7576\u53ef\u6015\u3002\u7b2c\u4e8c\u548c\u7b2c\u56db\u500b\u53c3\u6578\u7684 zval ** \u7d93\u904e\u4e00\u6b21\u6307\u91dd\u6e1b\u5c11\u8b8a\u6210 zval *\uff0c\u800c\u7b2c\u4e09\u500b\u53c3\u6578\u5247\u4fdd\u6301\u70ba zval *\u3002\u7136\u800c\uff0c\u7b2c\u516d\u500b\u53c3\u6578\u5247\u5f9e zval *** \u8b8a\u6210\u4e86 zval *\u3002\u5176\u5be6\uff0c\u6211\u81ea\u5df1\u4e5f\u4e0d\u592a\u6709\u628a\u63e1\uff0c\u4f46\u6211\u60f3\u61c9\u8a72\u662f\u6b63\u78ba\u7684\u3002<\/p>\n
zend_hash_*() \u7cfb\u5217\u7684API\u7ecf\u5386\u4e86\u76f8\u5f53\u5927\u7684\u53d8\u5316\u3002<\/h1>\n
\u867d\u7136\u5df2\u7ecf\u4ecb\u7ecd\u8fc7\u76f8\u4f3c\u7684\u5185\u5bb9\uff0c\u4f46\u662f\u5927\u591a\u6570\u54c8\u5e0c\u64cd\u4f5c\u7cfb\u7684 API \u5728\u53c2\u6570\u7684\u6570\u91cf\u548c\u7c7b\u578b\u4e0a\u5df2\u7ecf\u53d1\u751f\u4e86\u53d8\u5316\uff0c\u5982\u679c\u60f3\u5c06 PHP5 \u7684\u6269\u5c55\u8fdb\u884c PHP7 \u517c\u5bb9\u6027\u9002\u914d\uff0c\u4f1a\u611f\u89c9\u9700\u8981\u82b1\u8d39\u76f8\u5f53\u5927\u7684\u529f\u592b\u3002\u4f8b\u5982\uff0czend_hash_find() \u5728\u53c2\u6570\u4e2d\u4f20\u9012\u4e86 zval *** \u5e76\u63a5\u6536\u503c\uff0c\u4f46\u73b0\u5728\u5b83\u4f5c\u4e3a\u51fd\u6570\u8fd4\u56de\u503c\u8fd4\u56de\u4e86 zval *\uff0c\u8d85\u51fa\u4e86\u80fd\u591f\u901a\u8fc7 #if \u5207\u6362\u7684\u9650\u5ea6\uff0c\u7ed9\u4eba\u7559\u4e0b\u4e86\u8fd9\u6837\u7684\u5370\u8c61\u3002<\/p>\n
\u53e6\u5916\uff0c\u76f4\u5230PHP5\u4e3a\u6b62\uff0c\u5185\u90e8\u54c8\u5e0c\u8868\u662f\u901a\u8fc7\u7ba1\u7406\u6307\u9488\u6765\u8fdb\u884c\u64cd\u4f5c\u7684\uff0c\u5c06\u5176\u89e3\u91ca\u4e3azval *\u548c\u5176\u4ed6\u6307\u9488\u3002\u4f46\u662f\uff0c\u5728PHP7\u4e2d\uff0c\u5f00\u59cb\u7ba1\u7406zval\u3002\u4e3a\u4e86\u5728\u5904\u7406\u9664zval\u4e4b\u5916\u7684\u6307\u9488\u503c\u65f6\u4f7f\u7528\uff0c\u65b0\u7684API\u88ab\u521b\u5efa\uff0c\u5e76\u52a0\u4e0a\u4e86_ptr\u540e\u7f00\uff0c\u4f8b\u5982zend_hash_find_ptr()\u3002<\/p>\n
\u6b64\u5916\uff0c\u8fd8\u5f15\u5165\u4e86\u7c7b\u4f3c\u4e8eZEND_HASH_FOREACH_VAL(ht, val)\u7684hash\u7cfb\u5b8f\u51fd\u6570\u3002\u987e\u540d\u601d\u4e49\uff0c\u8fd9\u662f\u4e00\u4e2a\u7528\u4e8e\u5bf9\u54c8\u5e0c\u7684\u6240\u6709\u5143\u7d20\u6267\u884c\u64cd\u4f5c\u7684\u5b8f\u51fd\u6570\uff0c\u975e\u5e38\u65b9\u4fbf\u5b9e\u7528\uff0c\u5e0c\u671b\u80fd\u591f\u5c06\u5176\u56de\u6eaf\u81f3PHP5\u7cfb\u5217\u3002<\/p>\n
\u521b\u5efa\u4e0e\u81ea\u5b9a\u4e49\u7c7b\u76f8\u5bf9\u5e94\u7684\u7ed3\u6784\u4f53\u7684\u65b9\u5f0f\u53d1\u751f\u4e86\u6539\u53d8\u3002<\/h1>\n
\u5f53\u4f7f\u7528extension\u6765\u521b\u5efa\u7c7b\u65f6\uff0c\u5728PHP5\u4e2d\u901a\u5e38\u4f1a\u521b\u5efa\u4e00\u4e2a\u7ed3\u6784\u4f53\uff0c\u5176\u4e2d\u5c06zend_object\u653e\u5728\u5f00\u5934\uff0c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
struct custom_object {\r\n   zend_object std;\r\n   void  *custom_data;\r\n}\r\n<\/code><\/pre>\n
\u5bf9\u6b64\uff0c\u5728PHP7\u4e2d\uff0c\u9700\u8981\u5c06zend_object\u653e\u7f6e\u5728\u672b\u5c3e\uff0c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
struct custom_object {\r\n   void  *custom_data;\r\n   zend_object std;\r\n}\r\n<\/code><\/pre>\n
\u5bf9\u5e94\u4e8e\u8fd9\u4e2a\u7ed3\u6784\u4f53\u7684\u5185\u5b58\u5206\u914d\u65b9\u5f0f\u4e5f\u53d1\u751f\u4e86\u53d8\u5316\uff0c\u5e76\u4e14\u53d8\u6210\u4e86\u4e0b\u9762\u8fd9\u6837\u7684\u4ee3\u7801\u3002<\/p>\n
     struct custom_object *intern = ecalloc(1, \r\n         sizeof(struct custom_object) + \r\n         zend_object_properties_size(ce));\r\n<\/code><\/pre>\n
\u8fd9\u662f\u4e00\u4e2a\u7528\u4e8e\u5c06zend_object\u7684properties_table\u53d8\u6210\u53ef\u53d8\u4e2a\u6570\u7684\u6280\u5de7\u3002<\/p>\n
\u53ef\u80fd\u8fd8\u6709\u5176\u4ed6\u5bf9\u8c61\u751f\u6210\u51fd\u6570\u7684\u8fd4\u56de\u7c7b\u578b\u53d1\u751f\u53d8\u5316\uff0c\u53ef\u80fd\u4f1a\u6709\u4e00\u4e9b\u68d8\u624b\u7684\u5730\u65b9\u9700\u8981\u6ce8\u610f\u3002<\/p>\n
\u8bf7\u53c2\u8003<\/h1>\n
    \n
  • \n
      Upgrading PHP extensions from PHP5 to NG<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        PHP RFC: Native TLS<\/ul>\n","protected":false},"excerpt":{"rendered":"
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