Get Multiple Values with comma separated Using PHP and JavaScript

Question

Hello I am new in PHP and JavaScript. I have a code of Dropdown Checkbox. I want to try get out values of checked options with comma separate like 1,2,3

My problem is that when i run my code my output have one extra comma at the end like 1,2,3, and my desired output is 1,2,3

Here is my code

HTML Part

<select id="agency" multiple="multiple">
<?php
if (is_array($rating_agencies) && !empty($rating_agencies)) {
    foreach ($rating_agencies as $rating_agencie) {
        echo '<option value="'.$rating_agencie->ID.'"';
        echo '>';
        echo $rating_agencie->name;
        echo '</option>';
    } 
}           
?>
</select>
<input type="button" id="btnSelected" value="Get Selected" />

Java Script

<script type="text/javascript">
    $(function () {
        $('#agency').multiselect({
            includeSelectAllOption: true
        });
        $('#btnSelected').click(function () {
            var selected = $("#agency option:selected");
            var message = "";
            selected.each(function () {
                message += $(this).val() + ",";
            });
            alert(message);
        });
    });
</script>

You can use $.map() as var selected = $("#agency option:selected").map(function() { return $(this).val(); }).get(); — Tushar
– Tushar, Commented Jun 14, 2016 at 7:09
I would probably check if the message is empty and if it's false i wouldnt provide a comma, otherwise fist appenda comma,t hen the value. — DaMachk
– DaMachk, Commented Jun 14, 2016 at 7:09
stackoverflow.com/questions/2047491/how-to-remove-last-comma — Death-is-the-real-truth
– Death-is-the-real-truth, Commented Jun 14, 2016 at 7:10

Rayon · Accepted Answer · 2016-06-14 07:17:34Z

2

Use jQuery.map with Array#join

.get() will return basic-array instead of array-of-objects

$(function() {
  $('#agency').multiselect({
    includeSelectAllOption: true
  });
  $('#btnSelected').click(function() {
    var message = $("#agency option:selected").map(function() {
      return this.value;
    }).get();
    alert(message.join(','));
  });
});

edited Jun 14, 2016 at 7:17

answered Jun 14, 2016 at 7:09

Rayon

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Comments

Murad Hasan · Accepted Answer · 2016-06-14 07:12:21Z

1

Use slice to remove the last comma.

$('#btnSelected').click(function () {
    var selected = $("#agency option:selected");
    var message = "";
    selected.each(function () {
        message += $(this).val() + ",";
    });
    message = message.slice(0, -1);
    alert(message);
});

This is your question solution, OR you can go with @Rayon.

answered Jun 14, 2016 at 7:12

Murad Hasan

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Comments

Nehal · Accepted Answer · 2016-06-14 07:12:29Z

1

Use slice function :

<script type="text/javascript">
    $(function () {
        $('#agency').multiselect({
            includeSelectAllOption: true
        });
        $('#btnSelected').click(function () {
            var selected = $("#agency option:selected");
            var message = "";
            selected.each(function () {
                message += $(this).val() + ",";

            });
            message = message.slice(0, -1);
            alert(message);
        });
    });
</script>

answered Jun 14, 2016 at 7:12

Nehal

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Comments

Mani · Accepted Answer · 2016-06-14 07:09:18Z

0

Try to get the value instead of option:selected, It may work for you

var selected = $("#agency").val();

answered Jun 14, 2016 at 7:09

Mani

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Comments

Jijesh Cherayi · Accepted Answer · 2016-06-14 07:18:40Z

0

use rtrim method in php

// $commaString = "1,2,3,";
  $string = rtrim($commaString,",");
  // output 
  // 1,2,3

in Javascript

var comma_string = "1,2,3,";
string = comma_string.replace(/,+$/,'');

You can use in either side as your logic.

answered Jun 14, 2016 at 7:18

Jijesh Cherayi

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Comments

WingmanImd · Accepted Answer · 2016-06-14 07:43:52Z

0

Just use $rating_agencies = array_filter($rating_agencies) before your "if" statement.

answered Jun 14, 2016 at 7:43

WingmanImd

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