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Multiphase Form Programming Tutorial Multi Step

Learn to engineer multiphase forms using JavaScript, HTML and PHP. Multiphase forms have multiple steps or stages. They are ideal if you have a limited amount of space to dedicate to a form or if the form is very long you may want to break it up into stages. It could also be used to display any HTML content in any custom sequence. Animations and transitions can be applied without using bulky JS Frameworks by simply using the CSS3 transition property. example.php <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <style> form#multiphase{ border:#000 1px solid; padding:24px; width:350px; } form#multiphase > #phase2, #phase3, #show_all_data{ display:none; } </style> <script> var fname, lname, gender, country; function _(x){ return document.getElementById(x); } function processPhase1(){ fname = _("firstname").value; lname = _("lastname").value; if(fname.length > 2 && lname.length > 2){ _("phase1").style.display = "none"; _("phase2").style.display = "block"; _("progressBar").value = 33; _("status").innerHTML = "Phase 2 of 3"; } else { alert("Please fill in the fields"); } } function processPhase2(){ gender = _("gender").value; if(gender.length > 0){ _("phase2").style.display = "none"; _("phase3").style.display = "block"; _("progressBar").value = 66; _("status").innerHTML = "Phase 3 of 3"; } else { alert("Please choose your gender"); } } function processPhase3(){ country = _("country").value; if(country.length > 0){ _("phase3").style.display = "none"; _("show_all_data").style.display = "block"; _("display_fname").innerHTML = fname; _("display_lname").innerHTML = lname; _("display_gender").innerHTML = gender; _("display_country").innerHTML = country; _("progressBar").value = 100; _("status").innerHTML = "Data Overview"; } else { alert("Please choose your country"); } } function submitForm(){ _("multiphase").method = "post"; _("multiphase").action = "my_parser.php"; _("multiphase").submit(); } </script> </head> <body> <progress id="progressBar" value="0" max="100" style="width:250px;"></progress> <h3 id="status">Phase 1 of 3</h3> <form id="multiphase" onsubmit="return false"> <div id="phase1"> First Name: <input id="firstname" name="firstname"><br> Last Name: <input id="lastname" name="lastname"><br> <button onclick="processPhase1()">Continue</button> </div> <div id="phase2"> Gender: <select id="gender" name="gender"> <option value=""></option> <option value="m">Male</option> <option value="f">Female</option> </select><br> <button onclick="processPhase2()">Continue</button> </div> <div id="phase3"> Country: <select id="country" name="country"> <option value="United States">United States</option> <option value="India">India</option> <option value="United Kingdom">United Kingdom</option> </select><br> <button onclick="processPhase3()">Continue</button> </div> <div id="show_all_data"> First Name: <span id="display_fname"></span> <br> Last Name: <span id="display_lname"></span> <br> Gender: <span id="display_gender"></span> <br> Country: <span id="display_country"></span> <br> <button onclick="submitForm()">Submit Data</button> </div> </form> </body> </html> my_parser.php <?php if(isset($_POST['firstname'])){ echo $_POST['firstname']."<br>"; echo $_POST['lastname']."<br>"; echo $_POST['gender']."<br>"; echo $_POST['country']; } ?>
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