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comparing two strings to see if they are same

Hi,

I am trying to compare two strings to see if they are the same but I'm unable to get the correct result as in out of the 4/5 choices, I've added to a question only 1 should be correct.:mad:

The strings are $correct_choice and $choice, I have looked at various forums and tried to get the statement to work but I either get all the questions as one or as zeros. I would be grateful if someone can inform me where I have gone wrong:)

PHP Code:
 <?php 
        session_start(); 
        include 'includes/dbh.inc.php';
        include_once 'header.php'; 
         
                    if (isset($_POST['submit'])) { 
                     
                    //get the post varibles 
                    $question_number = $_POST['question_number']; 
                    $question_text = $_POST['text']; 
                    $correct_choice = $POST['correct_choice'];
                    
                    
                    //choice array 
                        $choice = array();//$choice is the key and choice1 etc.. is the value 
                        $choice[1] = $_POST['choice1'];
                        $choice[2] = $_POST['choice2'];
                        $choice[3] = $_POST['choice3'];
                        $choice[4] = $_POST['choice4'];
                        $choice[5] = $_POST['choice5'];
                       
                        
                        //if the user clicks sumbit without entering a question an error is displayed otherwise the question is submitted.
                          if ($question_text == '')
                          {
                       $error = 'ERROR: Please add question before clicking submit!';
                       echo $error;
                       }else
                       {
                        //question query 
                    $query = "INSERT INTO `questions`(question_number,text) VALUES ($question_number,'$question_text')"; 
                    //echo $query;
                        //run query 
                 if (mysqli_query($co,$query)) 
                 {
    echo "A new question has been created successfully";
} else 
{
    echo "Error: " . $query . "<br>" . mysqli_error($co);
}
}
        if ($query)
        {
               foreach ($choice as $choice => $value) 
               {  
                   if ($value != '')
                   {
                         if ($correct_choice == $choice){ 
                                         $is_correct = 1; 
                                     }else{ 
                                         $is_correct = 0; 
                                     } 
                                     //choice query 
                                 $query = "INSERT INTO  `choices` (`question_number`,`is_correct`,`text`) VALUES  ($question_number,$is_correct,'$value')";
                                
                                      //echo $query;
                                     if (mysqli_query($co,$query)) {
    echo "New choices have been added successfully";
} else {
    echo "Error: " . $query . "<br>" . mysqli_error($co);
}
               }}}}                             
                 
                     
                    // get the total questions 
    $query = "SELECT * FROM `questions`"; 
    //echo $query; 
     //get results from questions 
     $questions = $co -> query($query) or die($mysqli->error.__LINE__); 
     $total = $questions -> num_rows; 
     $next = $total ++; 
                ?>      
    <section class="main-container">
            <div class="main-wrapper">
                <h2>Quiz</h2>
                <?php
                    if (isset($_SESSION['u_id'])) {
                        echo "You are logged in!";
                    }
                ?>
                <main>
                    <div class = "container">
                        <br>
                        <h1>Add a question</h1>
                        <br>

                        <form method = "POST" action = "test2.php">
                        <p>
                            <label> Question Number:</label>
                            <input type = "number" value = "<?php echo $total?>" name = "question_number"/>
                        </p>
                        <br>
                         <p>
                            <label> Question Text</label>
                            <input type = "text"  placeholder = "Enter the question here" name = "text"/>
                        </p>
                        <br>
                         <p>
                            <label>Choices #1:</label>
                            <input type = "text" placeholder = "Enter the first answer"name = "choice1"/>
                        </p>
                        <br>
                        <p>
                            <label>Choices #2:</label>
                            <input type = "text" placeholder = "Enter the second answer"name = "choice2"/>
                        </p>
                        <br>
                        <p>
                            <label>Choices #3:</label>
                            <input type = "text" placeholder = "Enter the third answer"name  = "choice3"/>
                        </p>
                        <br>
                        <p>
                            <label>Choices #4:</label>
                            <input type = "text" placeholder = "Enter the fourth answer"name = "choice4"/>
                        </p>
                        <br>
                        <p>
                            <label>Choices #5:</label>
                            <input type = "text" placeholder = "Enter the fifth answer" name = "choice5"/>
                        </p>
                        <br>
                        <p>
                            <label>Correct Choice Number:</label>
                            <input type = "number" name = "correct_choice"/>

                        </p>
                        <br>
                        <input  type = "submit" name = "submit" value = "submit" />
                        <br>
                        </form>

                    </div>
                </main>
            </section>
        <br>
        <?php
            include_once 'footer.php';
        ?>

برچسب: نویسنده: آیلین رضوانی تاريخ: سه شنبه 14 شهريور 1396 ساعت: 18:46

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