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200 OK - bigxu.com
HTTP Status: 200
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: nginx/1.27.2
Date: Thu, 08 May 2025 19:18:36 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/7.2.34
Via: 1.0 httpd (nginx/1.18.0)

HTTP Code 200 OK

200 status code is a standard successful HTTP server response. It means that the client’s request (e.g., from a browser) was successfully processed, and the server is delivering the requested data.

When is Code 200 used?

  • When loading a web page
  • When successfully receiving an API response
  • When processing a form or another HTTP request

What does Code 200 mean for the user?

The user receives content without errors, and the page or application functions properly. If Code 200 is accompanied by data, the browser or program processes and displays it to the user.

GET / HTTP/1.1
Host: bigxu.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

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	 今日(2025-05-08 19:18:36)推荐: PHP7源码阅读笔记（不断更新）

zend_API.h Zend引擎提供的常用API函数
RETURN_STR(s)
作用：返回一个zend_string字符串。参考：参考示例

RETURN_STRING(s)
作用：返回一个char *字符串。参考：参考示例

ZEND_PARSE_PARAMETERS_START(min_num_args, max_num_args)
作用：在使用FAST ZPP方式解析PHP方法传入的参数时，会用到这个宏方法。这个宏方法用于指定参数的最小个数和最大个数。参考：参考示例

ZEND_API int zend_parse_parameters(int num_args, const char *type_spec, ...);
作用：解析PHP方法函数传入的参数。把传入的参数转换为PHP内核相应的类型。参考：参考示例

int zend_set_local_var(zend_string *name, zval *value, int force);
设置本地变量，变量名为zend_string. 参考示例

int zend_set_local_var_str(const char *name, size_t len, zval *value, int force);
设置本地变量，变量名为字符串指针。参考示例

array_init(arg)
初始化数组。宏方法。参考示例

object_init_ex(arg, ce)
使用指定的class_entry初始化对象。宏方法。参考示例

zend_execute_API.h 类的操作，方法的执行等相关API方法
zend_class_entry *zend_fetch_class(zend_string *class_name, int fetch_type)
获取类。参考示例

zend_string.h 字符串zend_string结构相关操作
ZSTR_LEN(zstr)
作用：用于获取zend_string字符串的长度。参考示例

ZSTR_VAL(zstr)
作用：用于获取zend_string字符串的值。参考示例

zend_string *zend_string_init(const char *str, size_t len, int persistent)
初始化zend_string字符串。参考示例

void zend_string_release(zend_string *s)
释放zend_string，如果引用数为0，则释放内存。参考示例

zend_typs.h 对于zval结构体的操作方法
zval操作相关宏方法命名规律：
ZVAL_ 开头的方法，是用于设置值的相关方法。

ZVAL_NULL(zval *)
设置值为null。宏方法。参考示例

ZVAL_LONG(zval *, long)
设置值为整型。宏方法。参考示例

ZVAL_STR(zval *, zend_string *)
设置值为字符串。宏方法。参考示例

Zend/zend_hash.h 哈希处理方法
zend_hash_num_elements
获取哈希/数组的元素个数。参考示例

array_init(arg)
初始化一个数组。参考示例

array_init_size(arg, size)
初始化一个数组，指定初始化数组的元素个数。参考示例

ZEND_HASH_FOREACH_KEY_VAL 和 ZEND_HASH_FOREACH_END
配合使用，实现foreach的效果。参考示例

zend_bool ZEND_FASTCALL zend_hash_exists(const HashTable *ht, zend_string *key)
检测指定的key在哈希中是否存在。key为字符串。参考示例

zend_bool ZEND_FASTCALL zend_hash_index_exists(const HashTable *ht, zend_ulong h)
检测指定的key在哈希中是否存在。key为数字。参考示例

zval* ZEND_FASTCALL zend_hash_find(const HashTable *ht, zend_string *key)
根据key查找指定的值。key为字符串。参考示例

zval* ZEND_FASTCALL zend_hash_index_find(const HashTable *ht, zend_ulong h)
根据key查找指定的值。key为数字。参考示例

zend_hash_update(ht, key, pData)
更新指定key的值。key为字符串。参考示例

zend_hash_index_update(ht, h, pData)
更新指定key的值。key为数字。参考示例

main/spprintf.h 字符处理
zend_string *strpprintf(size_t max_len, const char *format, ...)
根据传入的format和参数，生成一个zend_string。可以实现把多个参数拼接成一个字符串。参考示例

其他资料
PHP7 Opcode生成过程
大家都知道PHP代码会转换为Opcode
PHP7执行一个脚本的过程大概分为几步。
1. Lexing：词法扫描分析，将源文件转换成 token 流；
2. Parsing：语法分析，从 token 流生成抽象语法树；
3. Compilation：从抽象语法树生成 op arrays。
整个分析过程的相关代码，大家可以看`Zend/zend_language_scanner.c`文件中的`compile_file`方法。



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Whois info of domain

Domain Name: BIGXU.COM
Registry Domain ID: 1582732771_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.zzy.cn
Registrar URL: http://www.zzy.cn
Updated Date: 2024-12-17T16:58:13Z
Creation Date: 2010-01-22T11:45:51Z
Registry Expiry Date: 2026-01-22T11:45:51Z
Registrar: Xiamen ChinaSource Internet Service Co., Ltd
Registrar IANA ID: 1366
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Registrar Abuse Contact Phone: +86.5922958888
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
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