How can I call PHP functions by JavaScript?
To call a PHP function (with parameters too) you can, like a lot of people said, send a parameter opening the PHP file and from there check the value of the parameter to call the function.
Why is there no remote call to PHP?
There you will not see the PHP code, that is because the PHP code is not send to the client, therefore it cannot be executed from the client. That’s why you need to do a remote call to be able to have the client trigger the execution of PHP code.
How to pass JavaScript variables to PHP code?
You cannot pass variable values from the current page JavaScript code to the current page PHP code… PHP code runs at the server side, and it doesn’t know anything about what is going on on the client side. You need to pass variables to PHP code from the HTML form using another mechanism, such as submitting the form using the GET or POST methods.
Is the PHP code in HTML or JavaScript?
Because the PHP code is not in the HTML just fine. That’s an illusion created by the way most server side scripting languages works (including PHP, JSP, and ASP). That code only exists on the server, and it is no reachable form the client (the browser) without a remote call of some sort.
How is a PHP function passed to JavaScript?
The same echo can be used to output JavaScript that will run in the client’s browser. Here is some example code that will check an array of strings to find the index of the last palindrome. This index is stored in a PHP variable, which is then passed to JavaScript written inside the script tag using echo.
What happens when you run a PHP function?
Whenever you want to visit a page, the browser sends a request to the server, which then processes the request and generates some output by running the PHP code. The output or generated webpage is then sent back to you. The browser usually expects the webpage to consist of HTML, CSS, and JavaScript.