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Use C to develop PHP7/8 extensions and optimize your website performance
Introduction:
In modern web development, high performance and low latency are every The biggest concern for website developers. PHP is a dynamic language. Although it is easy to use and develop, its performance may not be satisfactory when handling a large number of concurrent requests. To solve this problem, we can use C to develop extensions to PHP for higher performance and lower latency. This article will introduce how to use C to develop PHP7/8 extensions, and provide some code examples to help you optimize your website performance.
phpize ./configure --enable-你的扩展名称 make make install
After executing the above command, you will see that a file named your extension name.so
is generated. dynamic link library file, that is, our extension has been successfully compiled and installed.
your extension.cpp
and write your C code in it. Let's look at a sample code to implement a simple string reversal function: #include <php.h> #include <zend_exceptions.h> // 函数声明 PHP_FUNCTION(reverse_string); // 扩展函数列表 const zend_function_entry extension_functions[] = { PHP_FE(reverse_string, NULL) PHP_FE_END }; // 扩展信息 zend_module_entry extension_module_entry = { STANDARD_MODULE_HEADER, "你的扩展名称", extension_functions, NULL, NULL, NULL, NULL, NULL, "1.0", STANDARD_MODULE_PROPERTIES }; // 扩展初始化 ZEND_GET_MODULE(extension) // 反转字符串函数实现 PHP_FUNCTION(reverse_string) { char *str; size_t str_len; // 参数解析 if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &str, &str_len) == FAILURE) { RETURN_NULL(); } // 字符串反转 zend_string *result = zend_string_alloc(str_len, 0); for (size_t i = 0, j = str_len - 1; i < str_len; i++, j--) { ZSTR_VAL(result)[j] = str[i]; } RETURN_STR(result); }
extension=你的扩展名称.so
Save and close the php.ini file, then restart your PHP server for the configuration to take effect.
<?php $result = reverse_string("Hello, world!"); echo $result; // 输出 "!dlrow ,olleH" ?>
In the above example, we called our extension function reverse_string()
, and assign the result to the variable $result
, and finally output the reversed string.
Conclusion:
By using C to develop PHP7/8 extensions, we can greatly improve the performance and response speed of the website. This article describes the steps on how to create a PHP extension project, write C code, configure the extension, and use the extension in PHP, and provides a simple example code for the reverse string function. By mastering these technologies, we can develop more high-performance extensions in actual projects to optimize our website performance. I hope this article has been helpful to you in optimizing website performance.
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