PHP Application works fine on webhotel but not on local server (WAMP)

Question

I am currently working a little with PHP and taking over a project that wasn't created by me. The tricky things is that on the server/webhotel the application is working like expected, however in my local test environment (WAMP 3.0.6 64bit, PHP 5.6.25, Apache 2.4.23, MySQL 5.7.14) it isn't working. The error message that is being output by PHP is :

Notice: Undefined index: ... line 110

which is directed at this snippet:

$bVal += $values[substr(utf8_decode(mb_strtolower($line)),$j,1)];. 

Thing is, I have copied all files as is from the server including all the files it rely on. I only have to make small tweaks (Change the text files the php script reads from) but it won't even work with the original ones. Is there a common issue between platforms versions for PHP, Apache etc? As far as I can tell the XHTTP request is acting normally and I feel like I shouldn't be having these issues, this may come from my inexperience with PHP though.

Code will be posted below and thank you in advance for even taking a look at it!

Code: https://pastebin.com/M6y9rfRa

Answer 1

Change your code to this and see how it goes

<script>
    function doSomething()
    {
        var xhttp = new XMLHttpRequest();
        xhttp.onreadystatechange = function()
        {
            if (xhttp.readyState == 4)
            {
                if (xhttp.status == 200)
                    document.getElementById("calContent").innerHTML = xhttp.responseText;
            }
        }
        xhttp.open("GET", "/num/ns.php?number=" + jQuery("#nInput").val() + "$$$" + jQuery('input[name=switcher]:checked').val(), true);
        xhttp.send();
    }
    function doSomethingElse()
    {
        var xhttp = new XMLHttpRequest();
        xhttp.onreadystatechange = function()
        {
            if (xhttp.readyState == 4)
            {
                if (xhttp.status == 200)
                    document.getElementById("calContent").innerHTML = xhttp.responseText;
            }
        }
        xhttp.open("GET", "/num/ns.php?number2=" + jQuery("#nInput2").val() + "$$$" + jQuery('input[name=switcher2]:checked').val(), true);
        xhttp.send();
    }
</script>
<style>
    .calOut {
        position: relative;
        float: left;
        margin-right: 18px;
    }
</style>
<style media="print">
    #calContent { display: none; }
</style>
<div id="calContent" style="margin-top: 0px; margin-bottom: 50px; color:black;" class="contact_form" >

<?php
    $numname = "number";
    if (isset($_GET["number"])) {
        echo "<div><input type='text' id='nInput' name='nInput' value='" . explode("$$$", $_GET["number"])[0] . "' />";
        echo "<br /><input type='radio' name='switcher' value='female' "; if (explode("$$$", $_GET["number"])[1] == "female") echo "checked"; echo ">Female&nbsp;&nbsp;";
        echo "<input type='radio' name='switcher' value='male' " . (explode("$$$", $_GET["number"])[1] == "male" ? "checked" : "") . ">Male&nbsp;&nbsp;";
        echo "<input type='radio' name='switcher' value='last' " . (explode("$$$", $_GET["number"])[1] == "last" ? "checked" : "") . ">Last name&nbsp;&nbsp;";
    }
    else {
        echo "<div><input placeholder='Enter vibration' type='text' id='nInput' name='nInput' />";
        echo "<br /><input type='radio' name='switcher' value='female' checked>Female&nbsp;&nbsp;<input type='radio' name='switcher' value='male' >Male&nbsp;&nbsp;";
        echo "<input type='radio' name='switcher' value='last' />Last name";
    }
    echo "<br /><input type='submit' id='nForm' value='Generate names' onclick='doSomething()' class='qbutton' style='margin-bottom: 45px;'/><br /></div>";

    if (isset($_GET["number2"])) {
        echo "<div><input type='text' id='nInput2' name='nInput2' value='" . explode("$$$", $_GET["number2"])[0] . "' />";
        echo "<br /><input type='radio' name='switcher2' value='female' "; if (explode("$$$", $_GET["number2"])[1] == "female") echo "checked"; echo ">Female&nbsp;&nbsp;";
        echo "<input type='radio' name='switcher2' value='male' " . (explode("$$$", $_GET["number2"])[1] == "male" ? "checked" : "") . ">Male&nbsp;&nbsp;";
        echo "<input type='radio' name='switcher2' value='last' " . (explode("$$$", $_GET["number2"])[1] == "last" ? "checked" : "") . ">Last name&nbsp;&nbsp;";
        $numname = "number2";
    }
    else {
        echo "<div><input placeholder='Enter vibration and number, eg. Lisa 17/8' type='text' id='nInput2' name='nInput' />";
        echo "<br /><input type='radio' name='switcher2' value='female' checked>Female&nbsp;&nbsp;<input type='radio' name='switcher2' value='male' >Male&nbsp;&nbsp;";
        echo "<input type='radio' name='switcher2' value='last' />Last name";
    }

    echo "<br /><input type='submit' id='nForm2' value='Generate names' onclick='doSomethingElse()' class='qbutton' /><br /></div>";

    //echo $_SERVER['HTTP_REFERER'];
    //echo "<br />";
    //if ($_SERVER['REMOTE_ADDR'] == "93.176.86.170" || $_SERVER['REMOTE_ADDR'] == "86.52.165.122")
    //  echo $_SERVER['REQUEST_URI'];

    $values = [
        "a" => 1, "i" => 1, "j" => 1, "q" => 1, "y" => 1, "å" => 1, "á" => 1, "à" => 1,
        "b" => 2, "k" => 2, "r" => 2,
        "c" => 3, "g" => 3, "l" => 3, "s" => 3, "ç" => 3,
        "d" => 4, "m" => 4, "t" => 4,
        "e" => 5, "h" => 5, "n" => 5, "x" => 5, "é" => 5, "è" => 5, "è" => "5",
        "u" => 6, "v" => 6, "w" => 6, "æ" => 6,
        "o" => 7, "z" => 7, "ø" => 7, "ô" => 7, "ó" => 7, "ò" => 7, "ö" => 7,
        "f" => 8, "p" => 8];
?>
<br />
<?php



//ini_set('memory_limit', '2048M');
error_reporting(0);
ini_set("display_errors", 0);
ini_set("log_errors", 0);
ini_set("error_reporting", 0);


    if (isset($_GET[$numname]))
    {
        $namecount = 0;
        if (is_numeric(explode("/", explode("$$$", $_GET["number"])[0])[0]))
        {
            echo "<br />";
            if (explode("$$$", $_GET[$numname])[1] == "male")
                $handle = fopen("./malenames.txt", "r");
            else if (explode("$$$", $_GET[$numname])[1] == "female")
                $handle = fopen("./femalenames.txt", "r");
            else
                $handle = fopen("./surnames.txt", "r");
            $output = Array();
            if ($handle)
            {
                while (($line = fgets($handle)) !== false)
                {
                    $bVal = 0;
                    for($j=0;$j<=strlen(utf8_decode($line));$j++)
                    {
                        $bVal += $values[substr(utf8_decode(mb_strtolower($line)),$j,1)];
                    }
                    if ($bVal==explode("/", explode("$$$", $_GET[$numname])[0])[0] || explode("/", explode("$$$", $_GET[$numname])[0])[0] == (1+(($bVal-1)%9)) )
                    {
                        //echo $line . "<br />";
                        $output[$namecount] = $line . " (" . $bVal . "/" . (1+(($bVal-1)%9)) . ")<br />";
                        $namecount++;
                    }
                    //echo $line . "<br />";
                }
                fclose($handle);
                echo "<p id='numcount'>Found " . $namecount . " names</p>";
                echo "<br />";
                for ($i=0;$i<count($output);$i++)
                    echo $output[$i];
                unset($output);
            }
        }
        else if (is_numeric(explode(" ", explode("/", explode("$$$", $_GET[$numname])[0])[0])[1]))
        {
            $parm1 = explode(" ", explode("$$$", $_GET[$numname])[0]);
            $oldname = utf8_decode($parm1[0]);
            $num = explode("/", $parm1[1])[0];
            //echo "<p>" . $parm1 . "</p>";
            //echo "<p>" . $oldname . "</p>";
            //echo "<p>" . $num . "</p>";
            echo "<br />";
            if (explode("$$$", $_GET[$numname])[1] == "male")
                $handle = fopen("./malenames.txt", "r");
            else if (explode("$$$", $_GET[$numname])[1] == "female")
                $handle = fopen("./femalenames.txt", "r");
            else
                $handle = fopen("./surnames.txt", "r");
            $output = Array();
            if ($handle)
            {
                while (($line = fgets($handle)) !== false)
                {
                    $linex = $parm1[0] . mb_strtolower($line);//utf8_decode(mb_strtolower($oldname . mb_strtolower($line)));
                    $bVal = 0;
                    for($j=0;$j<=strlen(utf8_decode($linex));$j++)
                    {
                        $bVal += $values[substr(utf8_decode(mb_strtolower($linex)),$j,1)];
                    }
                    if ($bVal==$num || $num == (1+(($bVal-1)%9)) )
                    {
                        //echo $line . "<br />";
                        $output[$namecount] = $linex . " (" . $bVal . "/" . (1+(($bVal-1)%9)) . ")<br />";
                        $namecount++;
                    }
                    //echo $line . "<br />";
                }
                fclose($handle);
                echo "<p id='numcount'>Found " . $namecount . " names</p>";
                echo "<br />";
                for ($i=0;$i<count($output);$i++)
                    echo $output[$i];
                unset($output);
            }
        }
        else
        {
            echo "<br />Error in input";
        }
        echo "<div style='clear:both;'></div>";
    }
?>
</div>
<script src="http://code.jquery.com/jquery-latest.min.js"
        type="text/javascript"></script>