What does $_post mean in php

$_post in php refers to the predefined $_POST variable, which is used to collect values from the form with "method="post""; the information sent from the form with the POST method is valid for any People are invisible, and there are no limits on how much messages can be sent.

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In PHP, the predefined $_POST variable is used to collect Value from the form with method="post".

$_POST variable

The predefined $_POST variable is used to collect values from the form with method="post".

Information sent from a form with the POST method is invisible to anyone (will not be displayed in the browser's address bar), and there is no limit on the amount of information sent.

Note: However, by default, the maximum amount of information sent by the POST method is 8 MB (can be changed by setting post_max_size in the php.ini file).

Example

form.html file code is as follows:

    
  
 名字:  年龄:   
  

When the user clicks the "Submit" button, the URL is similar to the following:

http://www.runoob.com/welcome.php

" welcome.php" file can now collect form data via the $_POST variable (note that the names of the form fields automatically become keys in the $_POST array):

欢迎 !
 你的年龄是  岁。

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