Trim and calculate mobile number in php form textarea field
P粉883278265
P粉883278265 2024-03-31 08:46:11
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I have a textarea field in my form where I can copy and paste the mobile number. One number per line, like this I can copy and paste hundreds of mobile numbers to submit in this form.

I want to trim the field, after copy pasting I only want to keep the 10 digits.

Only valid 10-digit numbers should be retained, all other invalid numbers should be automatically removed from the field. Not only can I copy and paste, I can also enter some numbers after pasting some numbers.

Example: If I paste this number into this text area field,

9848012345
9949123450
9949 123456
99491234
99491234561
+1236547890
9848098765

Only 10 digits should be kept from this field, as shown below:

9848012345
9949123450
9848098765

And use this script (onKeyUp="countline()") to count the total number (rows) in that field.

When I tried some solutions but lost the counting functionality.

Is there any solution to do this without losing the counting functionality?

<form class="form" method="post" action="" enctype="multipart/form-data">
<div class="form-group row">
     <label for="title" class="col-lg-2 col-form-label">Mobile Numbers </label>                         
   <div class="col-lg-10">
     <textarea onKeyUp="countline()" type="text" class="form-control required" required 
cols="10" rows="7" id="mobileno" name="mobileno"> </textarea>
 </div>
</div>

<div class="form-group row">
     <label class="col-lg-2 control-label " for="userName">Number Count </label>
  <div class="col-lg-10">
      <input type="text" class="form-control " readonly id="numbercount" required name="numbercount" value="">
  </div>
 </div>

<div class="form-group row">
   <div class="col-lg-12 text-center">
     <button type="submit" name="submit" class="btn btn-success btn-lg waves-effect waves-light m-r-10">SUBMIT </button>
</div>
 </div>

</form>     

<script>
    function countline() {
        var length = $('#mobileno').val().split("\n").length;
        document.getElementById("numbercount").value = length;
    }
</script>

please help. Thanks in advance.

P粉883278265
P粉883278265

reply all(1)
P粉761718546

Try checking this. I've updated your HTML slightly. This is true for both HTML and JavaScript. Hope this will work.


This is JavaScript:

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