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Does php accept post array parameters?

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2023-04-17 16:36:49542browse

PHP can accept POST array parameters because in the HTTP protocol, in addition to GET requests, there are also POST requests. When using POST requests to send data from the client (browser) to the server (server), forms are often used to submit data. The data submitted by the form will be encapsulated into an array, placed in the entity of the HTTP request message, and passed to the server.

In PHP, you can use the superglobal variable $_POST to obtain the data submitted in the POST request. When the client sends a POST request to the server, PHP will assign the data in the POST request to the $_POST variable. Therefore, we only need to use the $_POST variable to obtain the data submitted in the POST request, which is the POST array parameter.

For example, the following HTML form:

<form method="post" action="submit.php">
  <input type="text" name="username">
  <input type="password" name="password">
  <input type="submit" value="提交">
</form>

In the submit.php file, we can obtain the data submitted by the form through $_POST:

<?php
  $username = $_POST[&#39;username&#39;];
  $password = $_POST[&#39;password&#39;];
  echo "您的用户名是:" . $username . "<br>";
  echo "您的密码是:" . $password . "<br>";
?>

Through the above method, we You can obtain the POST array parameters submitted by the client and perform corresponding data processing. However, it should be noted that when using the $_POST variable, appropriate security processing must be carried out to avoid risks such as SQL injection.

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