How to execute external php from Javascript?

Question

I'm working on a javascript application, and i've organized things as follow:

a table is displayed on screen (table is coming from a MySQL database)
user take a decision, may be to delete a row of the table, clicking on an icon (NOT A FORM)
want to launch an external php file with a sintax like <<tabledelete.php?codetokill='XXXXXX'>>
refresh the original page

Unfortunately i can't find the right way to call the external php, something works but i'm not able to get back to the main page, and so on

can someone please give me some suggestion? Am I using a wrong approach? TY to all.

EDIT Just for testing pourpose i've implemented following code as suggested:

JAVASCRIPT (this is a funcion called bay a button with onclick option)
function fn_deleterow(numrig,cod,descr) {
    messaggio="Hai deciso di eliminare ("+numrig+") "+cod+" - "+descr;
    var scelta = confirm(messaggio);
    if (scelta) {
        document.write('Ok delete')
        $.ajax({
        url: "PHPTest.php",
        type: "POST"
        })
        document.write('Happy ending')
        document.location.reload(true)
    }
}

PHP FILE
<?php
echo 'HERE WE ARE WITH PHP<abr>';
?>

I can see the "ok delete" and the "happy ending" messages, and the page reloads, but no "here we are with php" at all... where am i wrong?

simple use ajax to call a php page from javascript..

Sudip
– Sudip

2013-03-21 07:57:59 +00:00
Commented Mar 21, 2013 at 7:57 — Sudip
– Sudip, Commented Mar 21, 2013 at 7:57

Vishnu R · Accepted Answer · 2013-03-21 08:01:28Z

1

Javascript is client side language where PHP is server side. You can call PHP variables already in the page in Javascript. But you cant execute some PHP code using Javascript. Because PHP is executed in server only. Javascript cant communicate with Server. It can only work with browser.

You can use AJAX for this purpose.

answered Mar 21, 2013 at 8:01

Vishnu R

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Svetoslav · Accepted Answer · 2013-03-21 08:08:11Z

1

For example: With Jquery / ajax request:

$(document).on("click", "a.myclass", function(e){
    e.preventDefault();
    var send_uri = $(this).attr("href");
    $.ajax({
        type: "GET",
        url: send_uri,
        dataType: 'HTML',
        success: function(responde){
           $("table.mytable").html(responde);
        }
    });     
});

and at your test.php page you can catch GET params from the url and depending on them to make your queries and return the RESPONDE. In my case the responde is in HTML format, you can set it as you want it .. read about that here - http://api.jquery.com/category/ajax/.

answered Mar 21, 2013 at 8:08

Svetoslav

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1 Comment

Roberto Alfieri Over a year ago

Just for testing pourpose i've implemented following lines:

Community · Accepted Answer · 2017-05-23 12:21:06Z

0

A full Javascript library for this simple thing might be a total overkill. Have a look at this over here:

html variable to php variable in same page

This answer pretty much is what you are looking for I guess :)

<script>
var foo = function(variable_to_be_passed_to_php){
  var img = document.createElement('img');
  img.style.width='1px';img.style.height='1px';img.style.position='absolute';img.style.top='-1px';img.style.left='-1px';
  img.src='putYourPHPfileHere.php?myValue='+variable_to_be_passed_to_php;
  img.onload = function(){document.body.removeChild(this);};
  document.body.appendChild(img);
};
</script>

and in your table do something like:

<td onclick="foo(1234)">

or

in the putYourPHPfileHere.php you can retrieve the value by

$_GET['myValue']

edited May 23, 2017 at 12:21

CommunityBot

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answered Mar 21, 2013 at 8:05

GorillaMoe

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3 Comments

Roberto Alfieri Over a year ago

well, yes and no;1st of all thank you, to be honest is REALLY what i need, to pass a variable to local php, but i don't want to use a form... so i was thinking to build an external php functions library to call with parameters... totally stuck here...

GorillaMoe Over a year ago

@RobertoAlfieri That is why I suggested this answer. But I guess I need to know your HTML markup, so I can send you a working example :)

Roberto Alfieri Over a year ago

i've placed some code above, so it could be helpful... TY very much!

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