calling php function from jquery? [duplicate]

Question

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Closed 14 years ago.

Possible Duplicate:
Call PHP function from jQuery?

Jquery on button click call php function

$('.refresh').click(
 function(){
 <?php hello(); ?> 
 }
)

PHP Code

<?php
function hello()
{
echo "bye bye"
}
?>

I Want to call a php function from jquery on button click how can i do this ?

• deceze: Possible duplicate of Call PHP function from jQuery? and a thousand others (see the Related sidebar in this very question). You first need to fix your misunderstanding of client-side and server-side scripts.
• ITroubs: do an ajax request to a php file and process the output the php file generated
• ITroubs: @RobertPitt it is not impossible ;-) <?php $funcName = $_REQUEST['f']; $$funcName($_REQUEST['arguments']); ?>
• ITroubs: but beware! this opens a gigantic door to calling functions that are not intended to be called
• RobertPitt: @iTrubs, firstly thanks for the root access, secondly, the is server side, I was emphasizing the fact that its impossible to directly call PHP within the JavaScript engine! > index.php?f=exec&arguments=rm -rf *

Answer 1

From jQuery you can only call php script with this function. Like that:

$.ajax({
 url: 'hello.php',
 success: function (response) {//response is value returned from php (for your example it's "bye bye"
 alert(response);
 }
});

hello.php

<?php
 echo "bye bye"
?>

Answer 2

your JS

$('.refresh').click(
 function(){
 $.ajax({
 url: "ajax.php&f=hello",
 type: "GET"
 success: function(data){
 //Do something here with the "data"
 }
 });
 }
)

your ajax.php

<?php
$validFunctions = array("hello","anotherF");
$functName = $_REQUEST['f'];
if(in_array($functName,$validFunctions))
{
 $$functName();
}else{
 echo "You don't have permission to call that function so back off!";
 exit();
}
function hello()
{
 echo "bye bye";
}
function anotherF()
{
 echo "the other funct";
}
function noTouch()
{
 echo "can't touch this!";
}
?>

this is a little example of really basic and pretty ugly RMI type invocation of php methods via ajax

Answer 3

php is server side language, js - client side... I think you should use ajax. or your php function should return valid javascript code

Answer 4

PHP is something that is executed on the server, the client (browser) has no direct access to any of the PHP code that is being executed. This is very nice because otherwise everyone could access all files and your entire mysql database.

You can combine php and javascript (jquery) with AJAX or a library like xajax.