Server Side Validation using PHP script

Question

I have written this code for Form using Server Side Validation in CORE PHP

                if(empty($s_email)){
                $er = "Please enter E-mail";
                }else if(!preg_match("/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/i", $s_email)){
                $er="Email-ID is invalid!<br>";
                }else if(!filter_var($s_secemail, FILTER_VALIDATE_EMAIL)){
                $er="Secondary Email-ID is invalid!<br>";


               <p>
                  <label class="required" for="s_email">Email Address:</label><br/>
                                <input type="text" id="s_email" class="half" value="" name="s_email"/>
                            </p>

                            <p>
                                <label for="s_secemail">Secondary Email Address:</label><br/>
                                <input type="text" id="s_secemail" class="half" value="" name="s_secemail"/>
                            </p>

My problem is when I skip the $s_secemail field, I am getting this meassage "Secondary Email-ID is invalid", its not mandatory

Use var_dump($s_secemail) to see what is in $s_secemail.If necessary use trim($s_secemail); — 웃웃웃웃웃
– 웃웃웃웃웃, Commented May 25, 2013 at 6:43

Sagish · Accepted Answer · 2013-05-25 06:36:32Z

2

use else if (!empty($s_secemail) && !filter_var($s_secemail, FILTER_VALIDATE_EMAIL)) to only check the condition if $s_secemail is provided

answered May 25, 2013 at 6:36

Sagish

1,0658 silver badges13 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Sagish Over a year ago

that's weird. are you sure $s_secemail = $_POST['s_secemail'] ? you can also trim the data so white space will be truncated like this else if (!empty(trim($s_secemail)) && !filter_var($s_secemail, FILTER_VALIDATE_EMAIL)). Lastly, you're missing a } after the last if

sAnS · Accepted Answer · 2013-05-25 07:42:34Z

1

You may try like this only check $s_secemail is valid email or not if is not empty as the below code

if(empty($s_email)){
                    $er = "Please enter E-mail";
                    }else if(!preg_match("/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/i", $s_email)){
                    $er="Email-ID is invalid!<br>";
                    }else if(!empty($s_secemail) && !preg_match("/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/i", $s_secemail)){

                $er="Secondary Email-ID is invalid!<br>";

                    }


                   <p>
                      <label class="required" for="s_email">Email Address:</label><br/>
                                    <input type="text" id="s_email" class="half" value="" name="s_email"/>
                                </p>

                                <p>
                                    <label for="s_secemail">Secondary Email Address:</label><br/>
                                    <input type="text" id="s_secemail" class="half" value="" name="s_secemail"/>
                                </p>

edited May 25, 2013 at 7:42

answered May 25, 2013 at 6:44

sAnS

1,1631 gold badge8 silver badges10 bronze badges

1 Comment

sAnS Over a year ago

@SagarPanchal i updated the code..you can check now..it is working in my system..

gaurav vashisht · Accepted Answer · 2013-11-12 20:22:28Z

0

i found good source for implementing server side validation so would like to share http://www.webexpertlabs.com/server-side-form-validation-using-regular-expression/

answered Nov 12, 2013 at 20:22

gaurav vashisht

491 bronze badge

1 Comment

Burndog Over a year ago

The linked site is no longer active (at least at the time of this writing)

Collectives™ on Stack Overflow

Server Side Validation using PHP script

3 Answers 3

1 Comment

1 Comment

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

1 Comment

1 Comment

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related