javascript - Codeigniter:每当尝试编辑配置文件时，下拉列表都会将空值传递到数据库

标签 javascript php jquery codeigniter

我第二次发帖，我被困在这里将近一周了。我有一个网站，我需要通过管理面板更改个人资料信息。现在的问题是，每当我单击“编辑”按钮并对个人资料进行更改时，例如接受更改名称或电子邮件更改，但是当我尝试更改地址(例如通过下拉列表更改国家/地区)，然后我根据所选国家/地区更改城市并提交我给我的这些更改在数据库中没有任何意义，没有进行任何更改，而不是更改，我在数据库中的县、省列中什么也没有得到，它们变成空白，没有数据我希望你明白我的意思!让我向您展示代码

edit_profileoverseasadmin.php

<script>
    $(document).ready(function(){
        $("form").submit(function(){
            var e = document.getElementById("select");
            var strUser = e.options[e.selectedIndex].text;
            document.getElementById("hidden20").value = strUser;

            var e1 = document.getElementById("selectcity");
            var strUser1 = e1.options[e1.selectedIndex].text;
            document.getElementById("hidden31").value = strUser1;

            var e2 = document.getElementById("selectcontinent");
            var strUser2 = e2.options[e2.selectedIndex].text;
            document.getElementById("hidden32").value = strUser2;

            var e3 = document.getElementById("selectprovince");
            var strUser3 = e3.options[e3.selectedIndex].text;
            document.getElementById("hiddenprovince").value = strUser3;

        });
    });
</script>

<script>
    function OverseasValidation() {
        $("#loaderIcon").show();
        var e = document.getElementById("select");
        var strUser = e.options[e.selectedIndex].text;
        document.getElementById("hidden20").value = strUser;


        var e1 = document.getElementById("selectcity");
        var strUser1 = e1.options[e1.selectedIndex].text;
        document.getElementById("hidden31").value = strUser1;

        var e2 = document.getElementById("selectcontinent");
        var strUser2 = e2.options[e2.selectedIndex].text;
        document.getElementById("hidden32").value = strUser2;

        var e3 = document.getElementById("selectprovince");
        var strUser3 = e3.options[e3.selectedIndex].text;
        document.getElementById("hiddenprovince").value = strUser3;

        var rate_value;
        if (document.getElementById('male').checked) {
            rate_value = document.getElementById('male').value;
        }
        else{
            rate_value = document.getElementById('female').value;
        }
        document.getElementById("hidden25").value = rate_value;
        jQuery.ajax({
            url: "<?php echo base_url();?>check_validation.php",
            data:'hidden1='+$("#hidden1").val()+'&hidden2='+$("#hidden2").val()+'&hidden3='+$("#hidden3").val()+'&hidden4='+$("#hidden4").val()+'&hidden5='+$("#hidden5").val()+'&hidden6='+$("#hidden6").val()+'&hidden15='+$("#hidden15").val()+'&hiddencardholder='+$("#hiddencardholder").val()+'&hiddenaddress='+$("#hiddenaddress").val()+'&hiddenzip='+$("#hiddenzip").val()+'&hiddencardno='+$("#hiddencardno").val()+'&hiddencardexpiry='+$("#hiddencardexpiry").val()+'&cardcvv='+$("#cardcvv").val(),
            type: "POST",
            success:function(data){
                if(data == "Success")
                    {
                        var x = document.createElement("INPUT");
                        x.setAttribute("type", "submit");
                        x.setAttribute("value","Register");
                        $("#user-availability-status10").html(x);
                        //document.getElementById("hidden1").value = data;
                        $("#loaderIcon").hide();
                    }
                else if(data == "<span class='status-not-available'>Enter correct Card CVV format.</span>"){
                     $("#user-availability-status11").html(data);
                     $("#loaderIcon").hide();
                }
                else{
                     $("#user-availability-status11").html(data);
                     ("#loaderIcon").hide();
                }
            },
            error:function (){}
        });
    }
</script>

<script type="text/javascript">
    $(document).ready(function () { 
        $("#loaderIcon").show();
        jQuery.ajax({
            url: "<?php echo base_url();?>name.php",
            data:'phone='+$("#phone").val(),
            type: "POST",
            success:function(data){
                $("#countrydropdown").html(data);
                $("#loaderIcon").hide();

                var e1 = document.getElementById("select");
                e1.options[e1.selectedIndex].text = document.getElementById("hdcountry").value;

                var e2 = document.getElementById("selectcontinent");
                e2.options[e2.selectedIndex].text = document.getElementById("hdcontinent").value;
            },
            error:function (){}
        });

        var city = "13";
        var country = "AF";
        $("#loaderIcon").show();
        jQuery.ajax({
            url: "<?php echo base_url();?>editcity.php",
            type: "POST",
            success:function(data){
                $("#citydropdown").html(data);
                $("#loaderIcon").hide();

                var e1 = document.getElementById("selectcity");
                e1.options[e1.selectedIndex].text = document.getElementById("hdcity").value;
            },
            error:function (){}
        });
   });

</script>
<script type="text/javascript">
    $(document).ready(function () {
        var country_code = "AF";
        $("#loaderIcon").show();
        jQuery.ajax({
            url: "<?php echo base_url();?>province_state.php",
            data: { country_code : country_code},
            type: "POST",
            success:function(data){
                //  alert(data);
                $("#provincedropdown").html(data);
                $("#loaderIcon").hide();

                var e1 = document.getElementById("selectprovince");
                e1.options[e1.selectedIndex].text = document.getElementById("hdprovince").value;
            },
            error:function (){}
       });

       $("#loaderIcon").show();
           jQuery.ajax({
               url: "<?php echo base_url();?>district.php",
               //data:'phone='+$("#phone").val(),
               type: "POST",
               success:function(data){
                   $("#districtdropdown").html(data);
                   $("#loaderIcon").hide();
               },
               error:function (){}
          });
          $("#loaderIcon").show();
        jQuery.ajax({
        url: "<?php echo base_url();?>tehsil.php",
        //data:'phone='+$("#phone").val(),
        type: "POST",
        success:function(data){
        $("#tehsildropdown").html(data);
        $("#loaderIcon").hide();

    },
    error:function (){}
    });
    $("#loaderIcon").show();
        jQuery.ajax({
        url: "<?php echo base_url();?>uc.php",
        //data:'phone='+$("#phone").val(),
        type: "POST",
        success:function(data){
        $("#ucdropdown").html(data);
        $("#loaderIcon").hide();

    },
    error:function (){}
    });
    });

</script>








function checkstate() {
    $("#loaderIcon").show();
    jQuery.ajax({
    url: "<?php echo base_url();?>check_state.php",
    //data:'cnic='+$("#cnic").val(),
    data:'state='+$("#state").val(),
    type: "POST",
    success:function(data){
        $("#user-availability-status111").html(data);
        document.getElementById("hiddenstate").value = data;
        $("#loaderIcon").hide();

    },
    error:function (){}
    });
}

function checkAddress() {
    $("#loaderIcon").show();
    jQuery.ajax({
    url: "<?php echo base_url();?>check_address.php",
    //data:'cnic='+$("#cnic").val(),
    data:'address='+$("#address").val(),
    type: "POST",
    success:function(data){
        $("#address-availability").html(data);
        document.getElementById("hiddenaddress").value = data;
        $("#loaderIcon").hide();

    },
    error:function (){}
    });
}
function checkCity() {
    $("#loaderIcon").show();
    jQuery.ajax({
    url: "<?php echo base_url();?>check_city.php",
    //data:'cnic='+$("#cnic").val(),
    data:'city='+$("#city").val(),
    type: "POST",
    success:function(data){
        $("#city-availability").html(data);
        document.getElementById("hiddencity").value = data;
        $("#loaderIcon").hide();

    },
    error:function (){}
    });
}

function checkCardcvv() {
    var e = document.getElementById("select");
    var strUser = e.options[e.selectedIndex].text;
    document.getElementById("hidden20").value = strUser;


    var e1 = document.getElementById("selectcity");
    var strUser1 = e1.options[e1.selectedIndex].text;
    document.getElementById("hidden31").value = strUser1;

    var e2 = document.getElementById("selectcontinent");
    var strUser2 = e2.options[e2.selectedIndex].text;
    document.getElementById("hidden32").value = strUser2;

    var e3 = document.getElementById("selectprovince");
    var strUser3 = e3.options[e3.selectedIndex].text;
    document.getElementById("hiddenprovince").value = strUser3;


    var rate_value;
    if (document.getElementById('male').checked) {
    rate_value = document.getElementById('male').value;
    }
    else{
        rate_value = document.getElementById('female').value;
    }
    document.getElementById("hidden25").value = rate_value;
    $("#loaderIcon").show();
    jQuery.ajax({
    url: "<?php echo base_url();?>check_cardcvv.php",
    //data:'cnic='+$("#cnic").val(),
    data:'cardcvv='+$("#cardcvv").val(),
    type: "POST",
    success:function(data){
        $("#cardcvv-availability").html(data);
        document.getElementById("hiddencardcvv").value = data;
        $("#loaderIcon").hide();

    },
    error:function (){}
    });
}
function checkSilsala() {
    $("#loaderIcon").show();
    jQuery.ajax({
    url: "<?php echo base_url();?>check_silsala.php",
    //data:'cnic='+$("#cnic").val(),
    data:'silsala='+$("#silsala").val(),
    type: "POST",
    success:function(data){
        $("#user-availability-status7").html(data);
        document.getElementById("hidden7").value = data;
        $("#loaderIcon").hide();

    },
    error:function (){}
    });
}
function checkBlock() {
    $("#loaderIcon").show();
    jQuery.ajax({
    url: "<?php echo base_url();?>check_block.php",
    //data:'cnic='+$("#cnic").val(),
    data:'block='+$("#block").val(),
    type: "POST",
    success:function(data){
        $("#user-availability-status8").html(data);
        document.getElementById("hidden8").value = data;
        $("#loaderIcon").hide();

    },
    error:function (){}
    });
}
function checkProvince() {
    $("#loaderIcon").show();
    jQuery.ajax({
    url: "<?php echo base_url();?>check_province.php",
    //data:'cnic='+$("#cnic").val(),
    data:'state='+$("#state").val(),
    type: "POST",
    success:function(data){
        $("#user-availability-status9").html(data);
        document.getElementById("hidden9").value = data;
        $("#loaderIcon").hide();

    },
    error:function (){}
    });
}
function checkContinent() {
    $("#loaderIcon").show();
    jQuery.ajax({
    url: "<?php echo base_url();?>check_continent.php",
    //data:'cnic='+$("#cnic").val(),
    data:'continent='+$("#continent").val(),
    type: "POST",
    success:function(data){
        $("#user-availability-status39").html(data);
        document.getElementById("hidden39").value = data;
        $("#loaderIcon").hide();

    },
    error:function (){}
    });
}
</script>
<body>
<script>
function readURL(input) {
            if (input.files && input.files[0]) {
                var reader = new FileReader();

                reader.onload = function (e) {
                    $('#blah')
                        .attr('src', e.target.result)
                        .width(120)
                        .height(150);
                };

                reader.readAsDataURL(input.files[0]);
            }
        }


</script>


<script type="text/javascript">
$(document).ready(function() {  

    $(".my-activity").click(function(event) {
        var total = 120;
        /*var lensector=$(this).find('input[name="check_list[]"]:checked').length;
        document.getElementById("hidden29").value = lensector;

        var lenoffice=$(this).find('input[name="check_list1[]"]:checked').length;
        document.getElementById("hidden30").value = lenoffice;*/
        var countsectors = 0;
        var countoffice = 0;
        var countwings = parseInt(document.getElementById("wings").value);
        //alert(checkedBoxes);
        $(".my-activity:checked").each(function() {
                if($(this).val() == "UC Member"){
                    countoffice += 1;
                    total += 5000;
                }
                else if($(this).val() == "Tehsil President"){
                    countoffice += 1;
                    total += 10000;
                }
                else if($(this).val() == "District President"){
                    countoffice += 1;
                    total += 25000;
                }
                else if($(this).val() == "Commerce & Trade"){
                    countwings += 1;
                    //total += 10000;
                }
                /*else if($(this).val() == "Commerce"){
                    countwings += 1;
                    //total += 10000;
                }*/
                else if($(this).val() == "Industry"){
                    countwings += 1;
                    //total += 10000;
                }
                else if($(this).val() == "Lawyer"){
                    countwings += 1;
                    //total += 25000;
                }
                else if($(this).val() == "Doctor"){
                    countwings += 1;
                    //total += 10000;
                }
                else if($(this).val() == "Minorities"){
                    countwings += 1;
                    //total += 25000;
                }
                else if($(this).val() == "Women_Development"){
                    countwings += 1;
                    //total += 10000;
                }
                else if($(this).val() == "Functionary"){
                    countwings += 1;
                    //total += 25000;
                }
                else if($(this).val() == "Other"){
                    countwings += 1;
                    var data = '<input type="text" id="otherfield" name="otherfield">';
                    $("#otherfield").html(data);
                    //total += 25000;
                }
                else{
                    countsectors += 1;
                    total += 120;
                }

        });



        if (total == 120) {
            $('#amount').val('120');
        } else {                
            $('#amount').val(total);
        }
        document.getElementById("hidden29").value = countsectors;   

        document.getElementById("hidden30").value = countoffice;
        document.getElementById("wings").value = countwings;
        var amount = total;
        document.getElementById("payment").value = total;
    });

}); 
</script>
<script>
window.onload=function() {

  document.getElementById("countrydropdown").onchange=function() {
    //var period = this.value;
    var e = document.getElementById("select");
    var strUser = e.options[e.selectedIndex].value;
    document.getElementById("hidden20").value = strUser;

    //var e = document.getElementById("select");
    var ctry = e.options[e.selectedIndex].text;
    document.getElementById("hiddencountry").value = ctry;
        jQuery.ajax({
        url: "<?php echo base_url();?>province_state.php",
        data: { country_code : strUser},
        type: "POST",
        success:function(data){
        $("#provincedropdown").html(data);
        $("#loaderIcon").hide();

    },
    error:function (){}
    });
  }

     document.getElementById("provincedropdown").onchange=function() {
    var e = document.getElementById("selectprovince");
    var strUser = e.options[e.selectedIndex].value;
    document.getElementById("hidden20").value = strUser;

    var ctry = e.options[e.selectedIndex].text;
    document.getElementById("hiddenstate").value = ctry;

    var rate_value;
    if (document.getElementById('male').checked) {
    rate_value = document.getElementById('male').value;
    }
    else{
        rate_value = document.getElementById('female').value;
    }
    document.getElementById("hidden25").value = rate_value;

    var e1 = document.getElementById("select");
    var strUser1 = e1.options[e1.selectedIndex].value;

    jQuery.ajax({
        url: "<?php echo base_url();?>city.php",
        data: { country : strUser1 , city : strUser },
        type: "POST",
        success:function(data){
        $("#citydropdown").html(data);
        //document.getElementById("hiddencity").value = strUser;
        $("#loaderIcon").hide();

    },
    error:function (){}
    });
  }
}
</script>
<?php $this->load->view('header'); ?>
<!--Form Start-->
<div class="row">
<div class="col-md-offset-3 col-md-9">


 <h2><legend class="alignright"><u>Edit Profile</u></legend></h2>

<div class="col-lg-5">
<h3>Membership #    <strong><?php echo $membershipno;?></strong></h3>
<h4><?php echo $province; ?></h4>
</div>

<?php echo form_open_multipart("admin/editprofileoverseas/".$id);?>

<div class="col-lg-4 col-lg-offset-1">
<?php if($pic_path != './profile_pics/'):?>
<img id="blah" src="<?php echo base_url().$pic_path;?>" height="150"/>
<?php else: ?>
<img id="blah" src="https://nabobil.no/assets/default_profile_pic-05d39cb795bbb98e10c104b8f4aba70677a3f9f6c13253bf94f16181e9ee5a99.gif" height="150"/>
<?php endif; ?>
<input type='file' name="myFile" onchange="readURL(this)"; />
</div>

<br>
<br>
   <span class="col-md-4 col-md-offset-4" style="color:#D91E18"> <?php echo $message;?></span>


   <div class="controls col-md-5">
      <label class="control-label"  for="username">Full Name</label> *<br>
       <!--<input type="text" id="firstname" name="firstname" placeholder="" class="input-xlarge" onBlur="checkAvailability2()">-->
       <?php echo "<input name='firstname' type='text' class='form-control' id='firstname' value='$first_name' />";?><span id="user-availability-status2"></span>
    </div>

    <input type="hidden" id="hidden2" name="hidden2" value="">



      <div class="controls col-lg-5">
      <label class="control-label"  for="relation">Father / Husband Name</label><br>
       <?php echo "<input name='relation' type='text' class='form-control' id='relation' value='$relation' />";?>
      </div>
       <div class="controls col-lg-5">
      <label class="control-label"  for="username">Date Of Birth</label><br>
       <?php echo "<input name='dob' type='text' class='form-control' id='dob' value='$birth_date' />";?><span id="user-availability-status15"></span>
      </div>
    <!--<div class="control col-md-5">
    <label class="control-label" for="email">CNIC</label><br>

      <?php echo "<input name='cnic' type='text' class='form-control' id='cnic' value='$cnic' />";?><span id="user-availability-status3"></span>
    </div> 
    <input type="hidden" id="hidden3" name="hidden3" value="">-->







      <input type="hidden" id="hidden4" name="hidden4" value="">



      <input type="hidden" id="hidden15" name="hidden15" value="">



      <!--<div class="controls col-md-5">
      <label class="control-label" for="email">E-mail</label> *
      <br>

    <?php echo "<input name='email' type='text' class='form-control' id='email' value='$email' />";?><span id="user-availability-status1"></span>
      </div>

      <input type="hidden" id="hidden1" name="hidden1" value="">




    <input type="hidden" id="hidden5" name="hidden5" value="">

     <div class="control col-md-5">
    <label class="control-label" for="email">Gender</label><br>
    <input type="radio" name="gender" value="male" id="male" checked="true"> Male
    <input type="radio" name="gender" value="female" id="female"> Female<br>
    </div>

    <input type="hidden" id="hidden25" name="hidden25" value="">-->

   <!-- <div class="control col-md-5">
    <label class="control-label" for="email">Profile Picture</label><br>
    <input type='file' name="myFile" onchange="readURL(this)"; />
    </div>-->

    <div class="control col-md-5">
    <label class="control-label" for="email">Landline Number</label><br>
    <?php echo "<input name='phone' type='text' class='form-control' id='phone' value='$phone' />";?>
    </div>

    <div class="control col-md-5">
    <label class="control-label" for="email">Mobile Number</label> *<br>
    <!--<input type="tel" name="mobile" id="mobile" placeholder="03012345678" onBlur="checkMobile()">-->
     <?php echo "<input name='mobile' type='text' class='form-control' id='mobile' value='$mobile' />";?><span id="user-availability-status6"></span>
    </div>
    <input type="hidden" id="hidden6" name="hidden6" value="">

    <div class="control col-md-5">
    <label class="control-label" for="email">Email Address</label> *<br>
    <!--<input type="tel" name="mobile" id="mobile" placeholder="03012345678" onBlur="checkMobile()">-->
     <?php echo "<input name='email' type='text' class='form-control' id='email' value='$email' />";?><span id="user-availability-status1"></span>
    </div>
<div class="control col-md-5">
    <label class="control-label" for="email">Mailing Address</label> *<br>
        <?php echo "<textarea name='mailingaddress' rows='10' cols='160' class='form-control' id='mailingaddress'>$mailingaddress</textarea>";?>
    </div>
    <!--<div class="control col-md-5">
     <label class="control-label" for="email"></label><br>
    <span id="countrydropdown"></span>
    </div>-->



    <div class="row Weddings">




  </div>

  <!--<div class="control col-md-5">
      <label class="control-label"  for="username">Continent</label><br>
       <input type="text" id="continent" name="continent" placeholder="" class="input-xlarge" onBlur="checkContinent()"><span id="user-availability-status39"></span>
    </div>
    <input type="hidden" id="hidden39" name="hidden39" value="">-->
  <div class="control col-md-5">

    <label class="control-label" for="email">Country</label> *<br>
    <span id="countrydropdown"></span>
    <?php
    $selected='';
    $con=mysqli_connect("localhost","","","freedomorg");
      $sql=mysqli_query($con,"SELECT id,name FROM countries");
        if(mysqli_num_rows($sql)){
        $select= '<select name="select" id="select">';
while($rs=mysqli_fetch_array($sql))
{
      if($rs['name']===$country)
      {
        $select.='<option selected="selected" value="'.$rs['id'].'">'.$rs['name'].'</option>';
      }
      else
      {
      $select.='<option value="'.$rs['id'].'">'.$rs['name'].'</option>';
      }

  }
  $select.='</select>';
echo $select;
}
//P}OaK[oW@s[U

?>
    </div>
    <input type="hidden" id="hidden20" name="hidden20" value="">
    <input type="hidden" id="hiddencountry" name="hiddencountry" value="">
    <div class="control col-md-5">

    <label class="control-label" for="email">Continent</label> *<br>
    <select id="selectcontinent">
      <option value="Asia">Asia</option>
      <option value="Africa">Africa</option>
      <option value="North America">North America</option>
      <option value="South America">South America</option>
      <option value="Antarctica">Antarctica</option>
      <option value="Europe">Europe</option>
      <option value="Australia">Australia</option>
    </select>
    </div>

    <input type="hidden" id="hidden32" name="hidden32" value="">


        <div class="control col-md-5">
      <label class="control-label"  for="username">State/Province *</label><br>
       <span id="provincedropdown"></span>
         <?php
//       $country_code = $_POST["country_code"];
    $con=mysqli_connect("localhost","","","freedomorg");
    $sql1=mysqli_query($con,"SELECT code FROM countries WHERE name='$country'");
    $row = mysqli_fetch_assoc($sql1);
    $result=$row['code'];
 $sql=mysqli_query($con,"SELECT code,name FROM regions WHERE country='$result' order by name ASC");
if(mysqli_num_rows($sql)){
$select= '<select name="select" id="selectprovince">';

while($rs=mysqli_fetch_array($sql)){
    if($rs['name']===$province)
    {
      $select.='<option selected="selected" value="'.$rs['code'].'">'.$rs['name'].'</option>';
  }
  else
  {
    $select.='<option value="'.$rs['code'].'">'.$rs['name'].'</option>';    
  }
  }
  $select.='</select>';
echo $select;
}


?>
     <!--  <input type="text" id="state" name="state" placeholder="" class="input-xlarge" onBlur="checkstate()"><span id="user-availability-status111"></span><!--onBlur="OverseasValidation()"><span id="user-availability-status11"></span>-->
    </div>
    <input type="hidden" id="hiddenprovince" name="hiddenprovince" value="">
    <input type="hidden" id="hiddenstate" name="hiddenstate" value="">
     <?php echo "<input name='hdprovince' type='hidden' id='hdprovince' value='$province' />";?>
    <?php echo "<input name='hdcountry' type='hidden' id='hdcountry' value='$country' />";?>
    <?php echo "<input name='hdcity' type='hidden' id='hdcity' value='$city' />";?>
    <?php echo "<input name='hdcontinent' type='hidden' id='hdcontinent' value='$continent' />";?>
    <input type="hidden" id="hidden21" name="hidden21" value="">
    <div class="control col-md-5">
      <label class="control-label"  for="username">City *</label><br>
      <span id="citydropdown"></span>
      <?php
      $con=mysqli_connect("localhost","","","freedomorg");
      $sql=mysqli_query($con,"SELECT id,name FROM cities WHERE name != '' order by name ASC");
if(mysqli_num_rows($sql)){
$select= '<select name="select" id="selectcity">';
while($rs=mysqli_fetch_array($sql)){
        if($rs['name']===$city)
        {
            $select.='<option selected="selected" value="'.$rs['id'].'">'.$rs['name'].'</option>';
        }
        else
        {
            $select.='<option value="'.$rs['id'].'">'.$rs['name'].'</option>';  
        }
  }
  $select.='</select>';
echo $select;
}
?>
       <!--<input type="text" id="city" name="city" placeholder="" class="input-xlarge" onBlur="OverseasValidation()"><span id="user-availability-status11"></span>-->
    </div>

    <input type="hidden" id="hiddencity" name="hiddencity" value="">
    <input type="hidden" id="hidden31" name="hidden31" value="">

















    <div class="row">
<div class="col-md-offset-3 col-md-9 col-lg-offset-4 col-lg-8">

<?php echo form_submit('submit', 'Submit');?> <?php echo form_close();?>
  </div>
  </div>


  <br>
<br>


  </div>
  </div>
  </div>

  <!-- Tehsil Council wali bakwas-->

<br>
<br>

<!--Form End-->

<!-- Footer Start -->

<?php $this->load->view('footer'); ?>

</body>
</html>

最佳答案

请尝试mvc结构，我希望这段代码能帮助您正确找到问题 您应该将数据库详细信息添加到database.php文件

$db['default'] = array(
    'dsn'   => '',
    'hostname' => 'localhost',
    'username' => 'root',
    'password' => 'root',
    'database' => 'db_name',
    'dbdriver' => 'mysqli',
    'dbprefix' => '',
    'pconnect' => FALSE,
    'db_debug' => (ENVIRONMENT !== 'production'),
    'cache_on' => FALSE,
    'cachedir' => '',
    'char_set' => 'utf8',
    'dbcollat' => 'utf8_general_ci',
    'swap_pre' => '',
    'encrypt' => FALSE,
    'compress' => FALSE,
    'stricton' => FALSE,
    'failover' => array(),
    'save_queries' => TRUE
);

这是我的 Controller 文件

    <?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Welcome extends CI_Controller {


    public function __construct() {
        parent::__construct();

        $this->load->model('sitemodel');

    }
    public function index()
    {
        $data['countries'] = $this->sitemodel->get_country();
        $this->load->view('welcome_message',$data);
    }
}

然后Sitemodel.php

    <?php

    if (!defined('BASEPATH'))
        exit('No direct script access allowed');

    class Sitemodel extends CI_Model {

        function __construct() {
            // Call the Model constructor
            parent::__construct();
        }

        function get_country() {
            $this->db->select('id,name');
            $this->db->from('countries');
            $data = $this->db->get()->result();
            return $data;
        }
}

最后我刚刚添加了带有下拉菜单的 View 文件

 <select name="country" id="country">
<?php
foreach($countries as $country)
{
?>
<option value="<?= $country->id?>">"<?= $country->name?></option>
<?php
}
?>
        </select>

希望这对你有帮助

关于javascript - Codeigniter:每当尝试编辑配置文件时，下拉列表都会将空值传递到数据库，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/46442404/

上一篇：javascript - 为什么在 Javascript 中调用方法与调用 getter/setter 方法不同

下一篇：javascript - Draft JS Modifier.ReplaceText 撤消/重做错误

相关文章：

JavaScript 函数关键字在声明式使用时似乎已准备好？

javascript - 有没有办法在网站的某个区域/部分禁用 javascript？

php - 如果覆盖另一个模块使用的模块中的类会发生什么

php - 如何让新文件继承权限？

php - MySQL 是否足够快以每次都从数据库中读取，或者我应该缓存结果？

javascript - JQuery - 当第一个选择更改时重置所有显示'隐藏

javascript - 在表达式中找到 promise 。 Angular 表达式中 promise 的自动展开已被弃用

javascript - 显示 JSON

javascript - Kendo Grid新增记录事件，如何捕捉？

javascript - 添加 id 号不断增加的新元素

©2024 IT工具网  联系我们