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Editorial Team
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Asked: 2026-05-22T21:23:38+00:00

I made a simple login using JavaScript, but record the username in a PHP

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I made a simple login using JavaScript, but record the username in a PHP session.It’s a simple web chat, so I want when the chat page is loaded the user to be forced to pick an username, but after that I want to store that info ina a PHP session and if the page is reloaded for some reason to do a check if $_SESSION[‘UserName’] is empty and if it’s not to stop the script from executing again.I put my login JS in <body onload..> and the code looks like this:

<body onload = "showUser(), showChat(), <?php if ($_SESSION['UserName']==""){
{
  Login();
}?>">

I’m just learning now, so I gues I have some newb mistakes, like I’m almost sure that I’m not calling the Login() function right (it’s JS function), but that’s my strating point.Could anyone explain to me, how should I do the check properly and add the JS function in my PHP code?

P.S And I don’t know if this really matter but if I remove the PHP code and leave liek this:

<body onload = "showUser(), showChat(),Login()">

My script is executed properly and I get everything that should be shown when the page is loaded, but when I add the PHP script and try to load the page I get blank page.I really wonder what’s the reason for this too?

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1 Answer

  1. Editorial Team

    You can simply call this as:

    <?php 
    if($_SESSION['UserName'] == ""){ 
?>
<body onload="showUser(), showChat()">
<?php
    }
    else
    {
?>
<body onload="showUser(), showChat(), Login();">
<?php
    }
?>
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