


PHP simulates asp.net webFrom button submission event instance, asp.netwebfrom_PHP tutorial
php simulates asp.net webFrom button submission event instance, asp.netwebfrom
Since the company needs project development in PHP, and I have just started using PHP, in the process of writing button submission, the button event in asp.net is better. First look at the code below,
<? require_once '../inc/EventHelper.php'; function Page_Load() { echo '在任何时候都会运行<br>'; if(!Page::IsPostBack()) { echo '加载产品分类<br>'; if($_GET['cmd']=='edit') { echo '修改加载需要修改的产品信息<br>'; } } } function bAdd_Click() { //Comm::CheckQX('产品管理_添加'); echo "bAdd_Click<br>"; } function bEdit_Click() { //Comm::CheckQX('产品管理_修改'); echo 'proID='.$_GET['proID'].'<br>'; echo "bEdit_Click<br>"; } function sdfsdfdsf_Click() { echo "e44444444444444444444<br>"; } ?>
<form name="aa" method="post" action="?<?=Comm::GetParam()?>"> <input type="submit" name="bAdd" value="添加" /> <input type="submit" name="bedit" value="修改" /> <input type="submit" name="sdfsdfdsf" value="ewrewrewr" /> </form>
Those who have done asp.net development should be familiar with the above code, such as: Page_Load, Page.IsPostback, bAdd_Click, these are very similar to asp.net events.
The above code runs the bAdd_Click function (let’s call it that, function seems to mean function) when the [Add] button is clicked. Similarly, the bEdit_Click event is automatically run when the [Modify] button is clicked. There is no need for too many parameter changes or too many files. If the page function is not very complex, this mode can be used for rapid development.
Let’s take a look at the code of the EventHelper.php file:
<? class Page { //是否回发数据,1:是 public static function IsPostBack() { global $SYSRunEventName; return !empty($SYSRunEventName); } //加载并执行事件 function EventLoad() { global $SYSRunEventName; $arrEvent=get_defined_functions(); $arrEventUser=$arrEvent['user']; $arr=array_keys($_POST); foreach($arr as $row) { $name=strtolower($row); foreach($arrEventUser as $row1) { $name1=str_ireplace('_click','',$row1); if($name==$name1) { $SYSRunEventName=$row1; break; } } if(!empty($SYSRunEventName)) { break; } } if(function_exists('Page_Load')) Page_Load(); $SYSRunEventRunName=strtolower($SYSRunEventName); if(Page::IsPostBack()) { $SYSRunEventName(); } } } class Comm { public static function GetParam($params=array(),$cmd='addoverride') { $allParam=array(); if($cmd=='addoverride') { $arrKeys=array_keys($params); foreach($arrKeys as $row) { if(!in_array($row,array_keys($allParam))) $allParam[$row]=$params[$row]; } } else if($cmd=='del') { foreach($params as $row) { unset($_GET[$row]); } } $arrKeys=array_keys($_GET); foreach($arrKeys as $row) { if(!in_array($row,array_keys($allParam))) $allParam[$row]=$_GET[$row]; } $p=''; $arrKeys=array_keys($allParam); foreach($arrKeys as $row) { $p.=$row.'='.$allParam[$row].'&'; } return rtrim($p,'&'); } } Page::EventLoad(); ?>
You can test the above functions. It can run successfully in my php5.4, but I haven’t thought too much about security. I have read some articles that it is possible for php to execute php code through the client, because php is very practical. functional characteristics.
Regarding Comm::GetParam, since we often need to obtain the parameters in the get method or modify the parameters, for example, we need to retain all url parameters during paging and only modify the paging parameters (such as page=5), so I wrote some code by myself.
Mainly utilize the following features of php:
function_exists
get_defined_functions
And use common form submission principles and submit submission principles to implement functions.
Due to time constraints, I didn’t have time to explain the specific principles. Please forgive me. Everyone can understand the code.
How to trigger the text of the validation control? If the verification fails, an error message will be displayed like this. There should be various verification methods inside, such as regular expressions and the like.
Method 1: Directly specify the event
Method 2: Add
protected void Page_Load(object sender, EventArgs e)
{
Button btn;
btn= new Button();
btn.ID = "btn1";
btn .Text = "Button 1";
this.form1.Controls.Add(btn);
btn.Click += new EventHandler(btn1_Click);
btn = new Button();
btn.ID = "btn2";
btn.Text = "Button 2";
this.form1.Controls.Add(btn);
btn.Click += new EventHandler(btn1_Click);
}
protected void btn1_Click(object sender, EventArgs e)
{
Page.ClientScript.RegisterStartupScript(Page.GetType(), "", "");
}

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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