PHP - Highlight Active Page In A Modularize Website

<?
session_start();
// Replace the variable values below
// with your specific database information.
$host = "localhost";
$user = "master";
$pass = "hidden";
$db   = "user";
// This part sets up the connection to the 
// database (so you don't need to reopen the connection
// again on the same page).
$ms = mysql_pconnect($host, $user, $pass);
if ( !$ms )
{
echo "Error connecting to database.\n";
}
// Then you need to make sure the database you want
// is selected.
mysql_select_db($db);
?>

<?php
session_start();
// connect.php is a file that contains your
// database connection information. This
// tutorial assumes a connection is made from
// this existing file.
	require('connect.php');
    // If the values are posted, insert them into the database.
    if (isset($_POST['email']) && isset($_POST['password'])){
        $firstname = $_POST['firstname'];
        $lastname = $_POST['lastname'];
		$email = $_POST['email'];
        $password = $_POST['password'];
 
        $query = "INSERT INTO `member` (firstname, lastname, email, password) VALUES ('$firstname', '$lastname', '$email' '$password')";
        $result = mysql_query($query);
        if ( !mysql_insert_id() )
  {
  die("Error: User not added to database.");
  }
 else
  {
  // Redirect to thank you page.
  Header("Location: surveylanding_no-sidebar.html");
  }
    }
    ?>

<form name="htmlform" method="post" class="form" action="register.php"> 
   
    <p class="firstname"> 
        <input type="text" name="firstname" id="firstname" /> 
        <label for="firstname">First Name</label> 
    </p> 
     
    <p class="lastname"> 
        <input type="text" name="lastname" id="lastname" /> 
        <label for="lastname">Last Name</label> 
    </p> 
     
    <p class="email"> 
        <input type="email" name="email" id="email" /> 
        <label for="email">Email</label>
    </p> 
     <p class="Password"> 
        <input type="password" name="password" id="password" /> 
        <label for="password">Password</label> 
    </p> 
       
    <p class="submit"> 
        <input type="submit" value="Register"/> 
    </p> 
   
</form>

I have following working code to compare 2 csv files - base.csv file to compare to master.csv file using function row_compare. For now I am echoing the master.csv file followed by echoing the match items. I need help to echo only the master.csv file in a table format and highlight the rows that match the base.csv files items.

function row_compare($a, $b)
{
    if ($a === $b) {
        return 0;
    }

    return (implode("",$a) < implode("",$b) ) ? -1 : 1;
}

$file1 = new SplFileObject("master.csv");
$file1->setFlags(SplFileObject::READ_CSV);

$file2 = new SplFileObject("../../base.csv");
$file2->setFlags(SplFileObject::READ_CSV);

foreach ($file1 as $row) {
    $csv_1[] = $row;
}

foreach ($file2 as $row) {
    $csv_2[] = $row;
}

$unique_to_csv1 = array_udiff($csv_1, $csv_2, 'row_compare');
$unique_to_csv2 = array_udiff($csv_2, $csv_1, 'row_compare');

$all_unique_rows = array_merge($unique_to_csv1,$unique_to_csv2);

foreach($all_unique_rows as $unique_row) {
    foreach($unique_row as $element) {
        echo $element . "   ";
    }
    echo '<br />';
}

I am trying to create a simple calendar where a user can add/remove their availability date. This part works so far. Now what I am having trouble with is highlighting the already selected dates that are fetched from a MySQL database.

Here's my code.

// HTML
<div id="datetimepicker1"></div>

// Jquery/Ajax

<script>
$(document).ready(function () {

  $('#datetimepicker1').datepicker({
    dateFormat: "yy-mm-dd",
    multidate: true,
    onSelect: function () {
        var getDate = $("#datetimepicker1").val();

        $.ajax({
             type: "POST", //or GET. Whichever floats your boat.
             url: "snippets/adapter-set.php",
             data: { date: getDate },
             success: function(data) {
              // alert(data);
             },
             error: function() {
                 alert("Error.");
             }
        });
    }
  });
});
</script>

// PHP
// adapter-set.php

$post_date = $_POST['date'];

$find_query = $db->prepare("SELECT user_id FROM user_dates WHERE date_available = :date_available");
$find_query->bindParam(':date_available', $post_date);
$find_query->execute();
$result_find = $find_query->fetchAll(PDO::FETCH_ASSOC);
if(count($result_find) > 0) {
  foreach($result_find as $row) {
    $user_id =	$row['user_id'];
  }
  $delete_query = $db->prepare("DELETE FROM user_dates WHERE user_id = :user_id");
  $delete_query->bindParam(':user_id', $user_id);
  $delete_query->execute();
  $result_delete = $delete_query->execute();
  if($result_delete == false) {
   echo 'delete false';
  } else {
   echo 'delete success';
  }
} else {
  $insert_query = $db->prepare("INSERT INTO user_dates(date_available) VALUES(:date_available)");
  $insert_query->bindParam(':date_available', $post_date);
  $result_insert = $insert_query->execute();
  if($result_insert == false) {
   echo 'insert false';
  } else {
   echo 'insert success';
  }

}

The above code works fine. It inserts and deletes a date row in MySQL database table based on a click.

Now what I would like to do is to highlight all the "available" dates that are already inserted into the database; so that the user knows which dates he has already selected. This is my code for that. But it doesn't seem to be working. No errors. It's just not highlighting the inserted dates. Can you tell me what I'm doing wrong?

// JQUERY
<script>
    $(document).ready(function() {

        $.post('snippets/adapter-fetch.php', {}, function(data){
            $("#datetimepicker1").datepicker({
              datesEnabled : data.datesEnabled
            });
        }, 'json');

    });
</script>

// PHP
// adapter-fetch.php

$global_user_id = 5;

$find_query = $db->prepare("SELECT date_available FROM user_dates WHERE user_id = :user_id");
$find_query->bindParam(':user_id', $global_user_id);
$find_query->execute();
$result_find = $find_query->fetchAll(PDO::FETCH_ASSOC);
if(count($result_find) > 0) {
  foreach($result_find as $row) {
    $date_available =	$row['date_available'];

    echo $date_available;
  }
} else {
  echo 'not dates available';
}

    $psScriptPath = 'C:/Apache/PSScripts/' //Path outside Website Root

    $rand = mt_rand(mt_getrandmax(),mt_getrandmax());
   
    //UTF-8 Standard only
    $username = utf8_decode($_POST["username"]);
    $password = utf8_decode($_POST["password"]);

    $base64_username = base64_encode($username); //Transport Layer Base64
    $base64_password = base64_encode($password); //Transport Layer Base64

    //The danger happens here as it is sent to powershell.
    $query = shell_exec('powershell.exe -ExecutionPolicy ByPass -command "' . $psScriptPath . '" < NUL  -rand "' . $rand . '" < NUL -base64_username "' . $base64_username . '" < NUL -base64_password "' . $base64_password . '" < NUL');// Execute the PowerShell script, passing the parameters

#*=============================================================================
#* Script Name: adpwchange2014.ps1
#* Created: 2014-10-07
#* Author:
#* Purpose: This is a simple script that queries AD users.
#* Reference Website: http://theboywonder.co.uk/2012/07/29/executing-powershell-using-php-and-iis/
#* 
#*=============================================================================

#*=============================================================================
#* PARAMETER DECLARATION
#*=============================================================================
param(
[string]$base64_username,
[string]$base64_password,
[string]$rand
)

#*=============================================================================
#* IMPORT LIBRARIES
#*=============================================================================

if ((Get-Module | where {$_.Name -match "ActiveDirectory"}) -eq $null){
	#Loading module
	Write-Host "Loading module AcitveDirectory..."
	Import-Module ActiveDirectory
	}else{
	write-output "Error: Please install ActiveDirectory Module"
	EXIT
	NUL
	Stop-Process -processname powershell*
	}
#*=============================================================================
#* PARAMETERS
#*=============================================================================
$username = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64_username))
$password = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64_password))
	
#*=============================================================================
#* INITIALISE VARIABLES
#*=============================================================================
# Increase buffer width/height to avoid PowerShell from wrapping the text before
# sending it back to PHP (this results in weird spaces).
$pshost = Get-Host
$pswindow = $pshost.ui.rawui
$newsize = $pswindow.buffersize
$newsize.height = 1000
$newsize.width = 300
$pswindow.buffersize = $newsize

#*=============================================================================
#* EXCEPTION HANDLER
#*=============================================================================

#*=============================================================================
#* FUNCTION LISTINGS
#*=============================================================================

    Function Test-ADAuthentication {
		Param($Auth_User, $Auth_Pass)
		Write-Output "Running Function Test-ADAuthenication"
		$domain = $env:USERDOMAIN
		
		Add-Type -AssemblyName System.DirectoryServices.AccountManagement
		$ct = [System.DirectoryServices.AccountManagement.ContextType]::Domain
		$pc = New-Object System.DirectoryServices.AccountManagement.PrincipalContext($ct, $domain)
		$pc.ValidateCredentials($Auth_User, $Auth_Pass).ToString()
		}

#*=============================================================================
#* SCRIPT BODY
#*=============================================================================
Write-Output $PSVersionTable
Write-Output "	"
$authentication = Test-ADAuthentication "$username" "$password"
if ($authentication -eq $TRUE) {
	Write-Output "Success:$rand Authentication"
	}elseif ($authentication -eq $FALSE) {
	Write-Output "Failed:$rand Authentication"
	}else {
	Write-Output "Error: EOS"
	EXIT
	NUL
	Stop-Process -processname powershell*
	}
	
#*=============================================================================
#* SCRIPT Exit
#*=============================================================================
Write-Output "End Of Script"
EXIT
NUL
Stop-Process -processname powershell*