CODEWITHSUNDEEP
phpjqueryfunctioninteger
Gradislava Bikkulova
Gradislava Bikkulova

Reputation: 331

issue of my php function inside my jquery code

I Want to execute a php function inside the jquery function .html(). The php function takes 2 integers as parameter.

This code works

$(function() {
    var myVar = 1;
    $('#myDiv').html('<? echo my_function('+myVar+','+1+'); ?>');   
});

and this one doesn't:

$(function() {
    var myVar = 1;
    $('#myDiv').html('<? echo my_function('+myVar+','+myVar+'); ?>');   
});

I don't have a php error, but nothing happens

Upvotes: 0

Views: 56

Answers (3)

Gerald Schneider
Gerald Schneider

Reputation: 17797

I just tried it. So, what happens is this: The PHP parser only cares what's inside the <? ?>tags, nothing else. So it sees this:

echo my_function('+myVar+','+1+');

The function is called with two Parameters, both strings: +myVar+ and +1+. You can check that by putting this in your function:

function my_function() {
    $argv = func_get_args();
    var_dump($argv);
}

It will output this:

array(2) {
  [0]=>
  string(7) "+myVar+"
  [1]=>
  string(3) "+1+"
}

After the PHP generated file is served the client sees this:

$(function() {
    var myVar = 1;
    $('#myDiv').html('The output of your my_function()');   
});

Your JavaScript variable now isn't used anymore.

If you want to print content with a already known ID you can either define the variable in PHP or use a $_GET or $_POST variable to set it in PHP.

If you want to use a dynamic value you will need an AJAX call to another file (where you will have to do what I suggested above).

Mixing PHP and JavaScript like you did is just not possible.

Upvotes: 0

Shijin TR
Shijin TR

Reputation: 7756

You are doing a wrong method, You cant use this method, var myvar; is a javascript variable,That will only available in your browser.But my_function() executed in web server;You can put a php variable in javascript,But not possible to use a javascript variable as argument in php function.make myvar as a php variable,if possible then put it into your function.Or you can use ajax to pass a javascript variable to php function.

Put your function into a php file,Then

     $('#mydiv').load('file.php?myvar='+myvar);

is possible,You can get the value in $_GET['myvar']

Upvotes: 1

user2193789
user2193789

Reputation:

write a file.php

<?php
my_function(myvar,1);
?>

and in html page use

$('#mydiv').load('file.php');

Upvotes: 1

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