字符串数组，然后选择复选框

Question

I have a jquery question. I currently store some data in a mysql table which is delimited by commas. Here is an example of the data stored

Tbl_stage " concept , prerevenue , 10mm , 20mm "

Once I echo this data in php, I need each check box to be checked if it is contained in the array

<label><input type="checkbox" id="check-item" class="primary1" checked /> concept </label> 
<label><input type="checkbox" id="check-item" class="primary1" checked /> pre-revenue </label> 
<label><input type="checkbox" id="check-item" class="primary1" /> sample blank data </label> 

Your help is greatly appreciated!

Answer 1

• First of all prepare an array without any spaces around the string .
• Filter checkbox elements by testing text of label with array of trimmed values retrieved from DB .
• Use jQuery.prop(PROPERTY, STATE) to set checked property.

 var str = " concept , prerevenue , 10mm , 20mm "; var arr = str.split(' , ').map(function(el) { return el.trim(); }); $('.primary1').filter(function() { return (arr.indexOf($(this).closest('label').text().replace('-', '').trim()) !== -1); }).prop('checked', true); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script> <label> <input type="checkbox" id="check-item" class="primary1" />concept</label> <label> <input type="checkbox" id="check-item" class="primary1" />pre-revenue</label> <label> <input type="checkbox" id="check-item" class="primary1" />sample blank data</label> 

Answer 2

Get the data from table using query and push each element into an array. Then use the array to check each data and echo checked in your checkbox tag

<?php 
  $query = 'Your query here to get the data from database table';
  $results = array();
  while($row = mysql_fetch_assoc($query))
  {
     $results[] = $row;
  }
?>
<label>
  <input type="checkbox" id="check-item" class="primary1" <?php if(in_array("concept",$results)) echo "checked";?> /> concept </label> 
<label>
  <input type="checkbox" id="check-item" class="primary1" <?php if(in_array("pre-revenue",$results)) echo "checked";?> /> pre-revenue </label> 
<label>
  <input type="checkbox" id="check-item" class="primary1" <?php if(in_array("sample blank data",$results)) echo "checked";?> /> sample blank data </label>

Answer 3

We have split function in js ref: http://www.w3schools.com/jsref/jsref_split.asp

Split the string that you get from the server.It will be array of words for example

var str = "concept , prerevenue , 10mm , 20mm";
var res = str.split(",");

Then you will get array with values concept prerevenue 10mm 20mm

You can loop it and set the checked value to true

$("input[type=checkbox][value=res[i]").attr("checked","true");

and don't forget to put values of input values same as the label values

ref: http://jsfiddle.net/LCU4C/2/

Answer 4

Update your script as follows:

<?php
$arr = array("concept" , "prerevenue" , "10mm" , "20mm"); ?>
<label><input type="checkbox" id="check-item" class="primary1" <?php echo in_array("concept",$arr) ? "checked" : "" ?> /> concept </label> 
<label><input type="checkbox" id="check-item" class="primary1" <?php echo in_array("prerevenue",$arr) ? "checked" : "" ?> /> prerevenue </label>