如何通过单击按钮调用 PHP 函数?<h1 style="color:green;"> GeeksforGeeks </h1> <h4> How to call PHP function on the click of a Button ? </h4> <?php if(array_key_exists('button1', $_POST)) { button1(); } else if(array_key_exists('button2', $_POST)) { button2(); } function button1() { echo "This is Button1 that is selected"; } function button2() { echo "This is Button2 that is selected"; } ?> <form method="post"> <input type="submit" name="button1" class="button" value="Button1" /> <input type="submit" name="button2" class="button" value="Button2" /> </form>