PHP & MySQL query depends on checkboxes - php

Question

I need some help with MySQL, jquery and PHP.
Here is my code :
HTML
<label class="checkbox"><input type="checkbox" name="code_site1" class="code_site1" checked="checked">Code 1</label>
<label class="checkbox"><input type="checkbox" name="code_site2" class="code_site2" checked="checked">Code 2</label>
<label class="checkbox"><input type="checkbox" name="code_site3" class="code_site3" checked="checked">Code 3</label>
<label class="checkbox"><input type="checkbox" name="code_site4" class="code_site4" checked="checked">Code 4</label>
Jquery
<script>
$(document).ready(function(){
$("#flip").click(function(){
$("#panel").slideToggle("slow");
});
});
</script>
Everything here is working. But, I have an SQL query:
SELECT * from site;
I'd like to change it to :
SELECT * from site WHERE codeSite=$theOneThatIsChecked;
Actually, all I want is to establish a sql query depending on what is checked or note. For example, if code_site1 is checked, I'd like to have my SQL query like :
SELECT * from site WHERE codeSite=1;
That's pretty much I'm trying to do but I really don't know how to do it in PHP without submitting...
Can you help me ?
Thanks a lot !
EDIT:
First, thank you for your answsers. I tried the different solutions, but I still have an issue.
Actually, what I do :
- On my main page index.php I have an ajax script that points to "do.php" when I click on a submit button,
- On the "do.php" page I store a query depending on which checkboxes I have checked,
- Finally, thanks to :
success:function(data){
alert(data);
}
I can print the query that I made on "do.php". I'd like to know if I can store it in a php variable on my main page, in order to execute the query on my main page.
Thank you !

Answer 1

so if the request is sent correctly and no problem with that
you may change the name of checkboxes to name="code_site[]"
form example:
form should be like this if you want submit
<form method="POST">
<input type="checkbox" name="code_site[]" value="1">
<input type="checkbox" name="code_site[]" value="2">
<input type="checkbox" name="code_site[]" value="3">
<input type="checkbox" name="code_site[]" value="4">
<input type="submit">
</form>
with no submit:
$(document).ready(function(){
$("#flip").click(function(){
var data = { 'code_site[]' : []};
$("input:checked").each(function() {
data['code_site[]'].push($(this).val());
});
$.post("do.php", data);
});
});
then on the query side you can do
and because you are using checkbox so I assume that user can check multiple values, so you need to use "IN"
$codeSites = [];
if($_POST['code_site'])
$text = $_POST['code_site'];
$query = "select * from codeSite where codeSite in (" . implode($codeSites, ',') . ")";
echo $query; // use it
sure you need to do some input sanitization
or you can do this:
$codeSites = [];
if($_POST['code_site'])
$text = $_POST['code_site'];
$query = "select * from codeSite where codeSite in ('" . implode($codeSites, '\',\'') . "')";
echo $query; // use it

Answer 2

Use Ajax
<script>
$(document).ready(function(){
$("#flip").click(function(){
$("#panel").slideToggle("slow");
if($('input[name="checkbox"]').is(':checked')){
var checkedValue =$("input[type='checkbox']").val();
var data ={id: checkedValue};
//make ajax request with the checked value
$.ajax({
url: url,
data:data
success: function(response) {
//process response
},
type: 'POST'
});
});
});
}
</script>

Answer 3

If I am understanding you correctly you will need to store the post value to a variable and the use that variable in your sql query
Change the input name so that they are all the same and then just add a value
Like this
<label class="checkbox"><input type="checkbox" value="1" name="code_site" class="code_site1" checked="checked">Code 1</label>
<label class="checkbox"><input type="checkbox" value="2" name="code_site" class="code_site2" checked="checked">Code 2</label>
And then something like:
if (isset($_POST['btn-checkbox'])){
$var = $_POST['codesite']
}
Then your query will be
SELECT * from site WHERE codeSite=$var;