jQueryAjax
可以在页面定义一个调用方法,如下:复制代码 代码如下:
function getData(){
$.getJSON("http://123.123.123.123/?callback=?",
{
"m":"data",// 指定php的文件名字
"act":"getdata",// 指定php文件中的方法
"name":"问题儿童"// 传入的参数
},
function(data) {
// 获得返回值
}
});
}
对应链接下(123.123.123.123)的PHP文件,一般默认先调用index.php文件,通过index.php文件内的方法处理后,转到对应的php文件,并且找到对应的方法,执行之。
index.php代码如下:
复制代码 代码如下:
/**
* 入口文件
*/
$string = $_SERVER["REQUEST_URI"];// 获取访问的url
$m = get_m($string);
$file_path = "app/".$m.".php";
define('IS_INDEX',true);// 阻止直接访问app目录
require ($file_path);
/**
*
* 获取访问php文件
* @param string $url
*/
function get_m($url){
$strings = explode('m=', $url);
$res = explode("&", $strings[1]);
return empty($res[0])?'index':$res[0];
}
?>
data.php代码如下:
复制代码 代码如下:
/**
* data文件
*/
$act = !empty($_GET['act']) ? $_GET['act'] : '';
if ($act == 'getdata')
{
$name = "我的名字叫:".$_REQUEST['name'];
echo $_REQUEST["callback"]."(".json_encode($name).")";
}
?>
成功调用后,画面就能获取到返回的json数据了。

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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