form_valiadiation_with_require.php

/form_valiadiation_with_require.php

https://gitlab.com/Garincha/PHP_Fundametals · PHP · 119 lines · 101 code · 18 blank · 0 comment · 10 complexity · ca3ba62155f244fe5ee4ab1b7b8377fe MD5 · raw file

<?php
    $errName = $errMail = $errWeb = $errGen = $errSub = $errCom = "";//these all are blank variable
    $Name = $Mail = $Web = $Com = $Gen = $Sub = "";//these all are blank variable
                    
                    
                    if($_SERVER["REQUEST_METHOD"] == "POST"){//here, by this code we are ensuring that all request/data comes through post method.
                        if(empty($_POST['user_name'])){
                            $errName = "<span style='color:red'>Name is required</span>";
                        }  else {
                            $Name  = validate($_POST['user_name']);//getting the data through the key user_name and kepping in $name variable.
                        }
                        if(empty($_POST['user_email'])){
                            $errMail = "<span style='color:red'>Email is required</span>";
                        }  else {
                            $Mail  = validate($_POST['user_email']);//getting the data through the key user_email and kepping in $mail variable.
                        }
                        if(empty($_POST['website'])){
                            $errWeb = "<span style='color:red'>Website is required</span>";
                        }  else {
                            $Web  = validate($_POST['website']);//getting the data through the key website and kepping in $web variable.
                        }
                        
                        $Com   = validate($_POST['comment']);//getting the data through the key comment and kepping in $com variable.
                        if(empty($_POST['gender'])){
                            $errGen = "<span style='color:red'>Gender is required</span>";
                        }  else {
                            $Gen  = validate($_POST['gender']);//getting the data through the key gender and kepping in $gen variable.
                        }
                        
                        $Sub   = validate($_POST['submit']);//getting the data through the key submit and kepping in $sub variable.
                        
                        echo "Name : ".$Name."<br>";
                        echo "Mail : ".$Mail."<br>";
                        echo "Website : ".$Web."<br>";
                        echo "Comment : ".$Com."<br>";
                        echo "Gender : ".$Gen."<br>";
                        echo "Submit : ".$Sub;
                    }
                    
                    function validate($data){//data(exe-$_post(user_name)) first comes to this parameter $data.by this function we are validating our data.
                        $data1 = trim($data);//then it goes through trim function and stores in $data1.
                        $data2 = stripcslashes($data1);//then it goes through stripclashed function and stores in $data2
                        $data3 = htmlspecialchars($data2);//then it goes through htmlspecialchars function and stores in $data3
                        return $data3;
                    }
                    
?>
<html>
    <head>
        <title>PHP Syntax</title>
        <style>
            .code{width:900px; margin: 0 auto; background:<?php echo '#ddd';?>;text-align: center;}
            .headeroption,.footeroptions{background: #444;color: #fff;text-align: center;padding: 20px;}
            .maincontent{min-height: 300px;padding: 20px;}
            .headeroption h2,.footeroptions h2{margin: 0;}
        </style>
        
    </head>
    
    <body>
        <div class="code">
            <div class="headeroption">
                <h2><?php echo 'PHP Fundamentals'?></h2>
            </div>
            <div class="maincontent">
                <?php
                    echo 'PHP Form Validation';
                ?>
                <form method="post" action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']);//in action we are using this code to take action within this page or we can leave the place empty.to protect hacking we are using htmlspecialchars?>">
                <table>
                    <p style="color:red">* Required Field</p>
                    <tr>
                        <td>Name :</td>
                        <td><input type="text" name="user_name" >*<?php echo "$errName"?></td>
                    </tr>
                    <tr>
                        <td>Email :</td>
                        <td><input type="text" name="user_email" >*<?php echo "$errMail"?></td>
                    </tr>
                    <tr>
                        <td>Website :</td>
                        <td><input type="text" name="website" >*<?php echo "$errWeb"?></td>
                    </tr>
                    <tr>
                        <td>Comments :</td>
                        <td><textarea name="comment" rows="5" cols="50"></textarea></td>
                    </tr>
                    <tr>
                        <td>Gender :</td>
                        <td>
                        <input type="radio" name="gender" value="male">Male
                        <input type="radio" name="gender" value="female">female
                        *<?php echo "$errGen"?>
                        </td>
                    </tr>
                    <tr>
                        <td></td>
                        <td><input type="submit" name="submit" value="Submit"></td>
                    </tr>
                </table>
                </form>
                <?php 
                
                    
                    
                ?>
            </div>
                  
            <div class="footeroptions">
                <h2><?php echo 'www.w3schools.com';?></h2>
            </div>
            
        </div>
       
    </body>
</html>
Alerts (12)

Complexity hotspot; lines 6 to 7 (total complexity: 3)
6 7
'$_POST[' Unbounded request input detected; limit size (e.g., check Content-Length or use max input vars) to prevent memory exhaustion
7 10 12 15 17 20 23 24 27 30