仅针对数字的引导表单验证

Question

我是 PHP 新手，想创建一个如下所示的简单表单，并希望验证它并仅在正确验证后提交。

我面临电话验证问题，即使我输入字符，电话也会验证，我想验证数字和 + 号，例如 +1 12345678、+91 1234123123

我怎样才能只验证电话号码..

        <div class="col-md-12 mb-3">
          <input class="form-control" type="text" name="name" placeholder="Full Name" required>
          <div class="valid-feedback">Username field is valid!</div>
          <div class="invalid-feedback">Username field cannot be blank!</div>
        </div>

        <div class="col-md-12 mb-3">
          <input class="form-control" type="email" name="email" placeholder="E-mail Address" required>
          <div class="valid-feedback">Email field is valid!</div>
          <div class="invalid-feedback">Email field cannot be blank!</div>
        </div>

        <div class="col-md-12 mb-3">
          <input class="form-control" type="tel" name="tel" placeholder="Phone" required>
          <div class="valid-feedback">Phone field is valid!</div>
          <div class="invalid-feedback">Phone field cannot be blank!</div>
        </div>

        <div class="col-md-12 mb-3">
          <textarea name="message" id="message" placeholder="Your Message"></textarea>
        </div>

        <div class="col-md-12 mt-3">
          <label class="mb-3 mr-1" for="gender">I am interested in : </label>

          <input type="radio" class="btn-check" name="gender" id="male" autocomplete="off" required>
          <label class="btn btn-sm btn-outline-secondary" for="male">Call Back</label>

          <input type="radio" class="btn-check" name="gender" id="female" autocomplete="off" required>
          <label class="btn btn-sm btn-outline-secondary" for="female">Brochure</label>

          <input type="radio" class="btn-check" name="gender" id="secret" autocomplete="off">
          <label class="btn btn-sm btn-outline-secondary" for="secret">Price details</label>
        </div>

        <div class="form-button mt-3">
          <button id="submit" type="submit" class="btn btn-primary">Submit</button>
        </div>
      </form>
    </div>
  </div>
</div>   </div> </div>

(function () {
'use strict'
const forms = document.querySelectorAll('.requires-validation')
Array.from(forms)
  .forEach(function (form) {
    form.addEventListener('submit', function (event) {
      if (!form.checkValidity()) {
        event.preventDefault()
        event.stopPropagation()
      }

      form.classList.add('was-validated')
    }, false)
  })
})()

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;700;900&display=swap');

*, body {
    font-family: 'Poppins', sans-serif;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    -moz-osx-font-smoothing: grayscale;
}

html, body {
    height: 100%;
    background-color: #152733;
    overflow: hidden;
}


.form-holder {
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      min-height: 100vh;
}

.form-holder .form-content {
    position: relative;
    text-align: center;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-justify-content: center;
    justify-content: center;
    -webkit-align-items: center;
    align-items: center;
    padding: 60px;
}

.form-content .form-items {
    border: 3px solid #fff;
    padding: 40px;
    display: inline-block;
    width: 100%;
    min-width: 540px;
    -webkit-border-radius: 10px;
    -moz-border-radius: 10px;
    border-radius: 10px;
    text-align: left;
    -webkit-transition: all 0.4s ease;
    transition: all 0.4s ease;
}

.form-content h3 {
    color: #fff;
    text-align: left;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 5px;
}

.form-content h3.form-title {
    margin-bottom: 30px;
}

.form-content p {
    color: #fff;
    text-align: left;
    font-size: 17px;
    font-weight: 300;
    line-height: 20px;
    margin-bottom: 30px;
}


.form-content label, .was-validated .form-check-input:invalid~.form-check-label, .was-validated .form-check-input:valid~.form-check-label{
    color: #fff;
}

.form-content input[type=text], .form-content input[type=password], .form-content input[type=email], .form-content select {
    width: 100%;
    padding: 9px 20px;
    text-align: left;
    border: 0;
    outline: 0;
    border-radius: 6px;
    background-color: #fff;
    font-size: 15px;
    font-weight: 300;
    color: #8D8D8D;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
    margin-top: 16px;
}


.btn-primary{
    background-color: #6C757D;
    outline: none;
    border: 0px;
     box-shadow: none;
}

.btn-primary:hover, .btn-primary:focus, .btn-primary:active{
    background-color: #495056;
    outline: none !important;
    border: none !important;
     box-shadow: none;
}

.form-content textarea {
    position: static !important;
    width: 100%;
    padding: 8px 20px;
    border-radius: 6px;
    text-align: left;
    background-color: #fff;
    border: 0;
    font-size: 15px;
    font-weight: 300;
    color: #8D8D8D;
    outline: none;
    resize: none;
    height: 120px;
    -webkit-transition: none;
    transition: none;
    margin-bottom: 14px;
}

.form-content textarea:hover, .form-content textarea:focus {
    border: 0;
    background-color: #ebeff8;
    color: #8D8D8D;
}

.mv-up{
    margin-top: -9px !important;
    margin-bottom: 8px !important;
}

.invalid-feedback{
    color: #ff606e;
}

.valid-feedback{
   color: #2acc80;
}

<div class="form-body">
     
        <div class="row">
            <div class="form-holder">
                <div class="form-content">
                    <div class="form-items">
                        <h3>Register you interest</h3>
                        <p>Fill in the data below, we will get back to you!</p>
                        <form class="requires-validation" action="SubmitFORM.php" method="POST" novalidate>

                            <div class="col-md-12 mb-3">
                               <input class="form-control" type="text" name="name" placeholder="Full Name" required>
                               <div class="valid-feedback">Username field is valid!</div>
                               <div class="invalid-feedback">Username field cannot be blank!</div>
                            </div>

                            <div class="col-md-12 mb-3">
                                <input class="form-control" type="email" name="email" placeholder="E-mail Address" required>
                                 <div class="valid-feedback">Email field is valid!</div>
                                 <div class="invalid-feedback">Email field cannot be blank!</div>
                            </div>

                           <div class="col-md-12 mb-3">
                                 <input class="form-control" type="tel" name="tel" placeholder="Phone" required>
                                  <div class="valid-feedback">Phone field is valid!</div>
                                 <div class="invalid-feedback">Phone field cannot be blank!</div>
                           </div>

                           <div class="col-md-12 mb-3">
                              <textarea name="message" id="message" placeholder="Your Message"></textarea>
                           </div>


                           <div class="col-md-12 mt-3">
                            <label class="mb-3 mr-1" for="gender">I am interested in : </label>

                            <input type="radio" class="btn-check" name="gender" id="male" autocomplete="off" required>
                            <label class="btn btn-sm btn-outline-secondary" for="male">Call Back</label>

                            <input type="radio" class="btn-check" name="gender" id="female" autocomplete="off" required>
                            <label class="btn btn-sm btn-outline-secondary" for="female">Brochure</label>

                            <input type="radio" class="btn-check" name="gender" id="secret" autocomplete="off" >
                            <label class="btn btn-sm btn-outline-secondary" for="secret">Price details</label>
                            </div>             

                            <div class="form-button mt-3">
                                <button id="submit" type="submit" class="btn btn-primary">Submit</button>
                            </div>
                        </form>
                    </div>
                </div>
            </div>
        </div>
    
    </div>
 

试图改变这个例子

Answer 1

您可以在输入标签中定义您想要的pattern，例如。

 <input class="form-control" type="tel" name="tel" placeholder="Phone" pattern="[+][0-9]{3}-[0-9]{2}-[0-9]{3}" required>

+123-45-678

同样，您可以根据自己的要求尝试类似的模式。希望这会有所帮助

Answer 2

我通过添加两个函数解决了这个问题，

1. 我添加了 JS 功能，只允许电话字段中的数字
2. 我还添加了international telephone numbers 用于 UX 的电话格式化，因为我还使用 IP 检测来自动选择国家代码以解决错误输入或错字，这主要发生在输入国家代码时，因为有些人使用输入没有国家代码的电话号码，有些输入 +XXX 有些输入 00XXX 作为国家代码..

下面是CodePen上工作示例的链接

(function () {
'use strict'
const forms = document.querySelectorAll('.requires-validation')
Array.from(forms)
  .forEach(function (form) {
    form.addEventListener('submit', function (event) {
      if (!form.checkValidity()) {
        event.preventDefault()
        event.stopPropagation()
      }

      form.classList.add('was-validated')
    }, false)
  })
})()

function isNumber(evt) {
    evt = (evt) ? evt : window.event;
    var charCode = (evt.which) ? evt.which : evt.keyCode;
    if (charCode > 31 && (charCode < 48 || charCode > 57)) {
        return false;
    }
    return true;
}

  var input1 = document.querySelector("#phone");
        // here, the index maps to the error code returned from getValidationError - see readme
        var errorMap = ["Invalid number", "Invalid country code", "Too short", "Too long", "Invalid number"];

         var iti1 = window.intlTelInput(input1, {
            utilsScript: "{{asset('js/utils.js')}}",
            initialCountry: "auto",
            preferredCountries: ['AE', 'US', 'UK', 'SA', 'QA', 'OM', 'IN'],
            setNumber: true,
            formatOnDisplay: true,
            nationalMode: true,
            geoIpLookup: function(success, failure) {
                $.get("https://ipinfo.io", function() {}, "jsonp").always(function(resp) {
                    var countryCode = (resp && resp.country) ? resp.country : "";
                    success(countryCode);
                });
            },
        });

        var reset = function() {
            input1.classList.remove("error");
        };

        // on blur: validate
        input1.addEventListener('keyup', function() {
            reset();
            if (input1.value.trim()) {
                if (iti1.isValidNumber()) {
                    $('#phoneError').hide();
                    input1.classList.remove("is-invalid");
                    input1.classList.add("is-valid");
                    document.querySelector("#phoneinvalid").value = iti1.getNumber();
                } else {
                    $('#phoneError').show();
                    input1.classList.remove("is-valid");
                    input1.classList.add("is-invalid");
                }
            }
        });

        // on keyup / change flag: reset
        input1.addEventListener('change', reset);
        input1.addEventListener('keyup', reset);

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;700;900&display=swap');

*, body {
    font-family: 'Poppins', sans-serif;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    -moz-osx-font-smoothing: grayscale;
}

html, body {
    height: 100%;
    background-color: yellow !important;
    overflow: hidden;
}


.form-holder {
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      min-height: 100vh;
}

.form-holder .form-content {
    position: relative;
    text-align: center;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-justify-content: center;
    justify-content: center;
    -webkit-align-items: center;
    align-items: center;
    padding: 60px;
}

.form-content .form-items {
    border: 3px solid #fff;
    padding: 40px;
    display: inline-block;
    width: 100%;
    min-width: 540px;
    -webkit-border-radius: 10px;
    -moz-border-radius: 10px;
    border-radius: 10px;
    text-align: left;
    -webkit-transition: all 0.4s ease;
    transition: all 0.4s ease;
}

.form-content h3 {
    color: #fff;
    text-align: left;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 5px;
}

.form-content h3.form-title {
    margin-bottom: 30px;
}

.form-content p {
    color: #fff;
    text-align: left;
    font-size: 17px;
    font-weight: 300;
    line-height: 20px;
    margin-bottom: 30px;
}


.form-content label, .was-validated .form-check-input:invalid~.form-check-label, .was-validated .form-check-input:valid~.form-check-label{
    color: #fff;
}

.form-content input[type=text], .form-content input[type=password], .form-content input[type=email], .form-content select {
    width: 100%;
    padding: 9px 20px;
    text-align: left;
    border: 0;
    outline: 0;
    border-radius: 6px;
    background-color: #fff;
    font-size: 15px;
    font-weight: 300;
    color: #8D8D8D;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
    margin-top: 16px;
}


.btn-primary{
    background-color: #6C757D;
    outline: none;
    border: 0px;
     box-shadow: none;
}

.btn-primary:hover, .btn-primary:focus, .btn-primary:active{
    background-color: #495056;
    outline: none !important;
    border: none !important;
     box-shadow: none;
}

.form-content textarea {
    position: static !important;
    width: 100%;
    padding: 8px 20px;
    border-radius: 6px;
    text-align: left;
    background-color: #fff;
    border: 0;
    font-size: 15px;
    font-weight: 300;
    color: #8D8D8D;
    outline: none;
    resize: none;
    height: 120px;
    -webkit-transition: none;
    transition: none;
    margin-bottom: 14px;
}

.form-content textarea:hover, .form-content textarea:focus {
    border: 0;
    background-color: #ebeff8;
    color: #8D8D8D;
}

.mv-up{
    margin-top: -9px !important;
    margin-bottom: 8px !important;
}

.invalid-feedback{
    color: #ff606e;
}

.valid-feedback{
   color: #2acc80;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/intl-tel-input/17.0.13/js/utils.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/intl-tel-input/17.0.13/js/intlTelInput.js"></script>
<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/intl-tel-input/17.0.13/css/intlTelInput.css" rel="stylesheet"/>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta2/dist/css/bootstrap.min.css" rel="stylesheet"/>
<div class="form-body">
  <div class="row">
    <div class="form-holder">
      <div class="form-content">
        <div class="form-items">
          <h3>Register you interest</h3>
          <p>Fill in the data below, we will get back to you!</p>
          <form class="requires-validation" action="SubmitFORM.php" method="POST" novalidate>

            <div class="col-md-12 mb-3">
              <input class="form-control" type="text" name="name" placeholder="Full Name" required>
              <div class="valid-feedback">Username field is valid!</div>
              <div class="invalid-feedback">Username field cannot be blank!</div>
            </div>

            <div class="col-md-12 mb-3">
              <input class="form-control" type="email" name="email" placeholder="E-mail Address" required>
              <div class="valid-feedback">Email field is valid!</div>
              <div class="invalid-feedback">Email field cannot be blank!</div>
            </div>

            <div class="col-md-12 mb-3">
              <input class="form-control" type="tel" id="phone" name="phone" placeholder="Phone" onkeypress="return isNumber(event)" required>
              <div class="valid-feedback">Phone field is valid!</div>
              <div class="invalid-feedback">Phone field cannot be blank!</div>
            </div>

            <div class="col-md-12 mb-3">
              <textarea name="message" id="message" placeholder="Your Message"></textarea>
            </div>

            <div class="col-md-12 mt-3">
              <label class="mb-3 mr-1" for="gender">I am interested in : </label>

              <input type="radio" class="btn-check" name="gender" id="male" autocomplete="off" required>
              <label class="btn btn-sm btn-outline-secondary" for="male">Call Back</label>

              <input type="radio" class="btn-check" name="gender" id="female" autocomplete="off" required>
              <label class="btn btn-sm btn-outline-secondary" for="female">Brochure</label>

              <input type="radio" class="btn-check" name="gender" id="secret" autocomplete="off">
              <label class="btn btn-sm btn-outline-secondary" for="secret">Price details</label>
            </div>

            <div class="form-button mt-3">
              <button id="submit" type="submit" class="btn btn-primary">Submit</button>
            </div>
          </form>
        </div>
      </div>
    </div>
  </div>
</div>