So that in PHP I can deal with them as :
foreach($_POST['checkboxname'] as $i => $value)
...
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6 Answers
Do something like this:
<input type="checkbox" name="checkboxArray[]" />
Note the [] in the name.
1 Comment
Doug Neiner
+1 Great answer. @unknown Just remember that if none of them are checked, the field won't even be submitted causing the
foreach to fail. Be sure to test isset($_POST['checkboxname']) prior to the foreach.Like this:
<input type="checkbox" name="checkboxname[]" />
<input type="checkbox" name="checkboxname[]" />
<input type="checkbox" name="checkboxname[]" />
<input type="checkbox" name="checkboxname[]" />
<input type="checkbox" name="checkboxname[]" />
Just append [] to their names.
1 Comment
Bilal Maqsood
There is a little problem !! if i check 5th check box it should be some thing like
Array ( [4] => on ) but it display Array ( [0] => on ) why it is should i please values like checkboxname[1] and checkboxname[2]???If you use an array for the checkboxes, you should add a value option as identifier for the single checkboxes, because then the returned array changes from Array ( [0] => on, [1] => on) to Array ( [0] => value1, [1] => value5 ), which let you identify the checked checkboxes.
Comments
<html>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
$(document).ready(function(even){
$("button").click(function(){
var checkvalue = [];
$.each($("input[name='1']:checked"), function(){
checkvalue.push($(this).val());
});
alert("checkvalue: " + checkvalue.join(", "));
});
});
</script>
<body>
<input type="checkbox" name="1" value="1" > 1 <br/>
<input type="checkbox" name="1" value="2"> 2 <br/>
<input type="checkbox" name="1" value="3"> 3 <br/>
<button type="button">Get Values</button>
</body>
</html>
Comments
for those HTML form elements that can send multiple values to server (like checkboxes, or multiple select boxes), you should use an array like name for your HTML element name. like this:
<input type="checkbox" name="checkboxname[]" />
also it is recommended that you use an enctype of "multipart/form-data" for your form element.
<form enctype="multipart/form-data" action="target.php" method="post">
then in your PHP scripts you can access the multiple values data as an array, just like you wanted.
1 Comment
user198729
Seems
enctype is unneccesary.If you are looking to send data in a nested object that works with Rails strong params:
Wanted payload:
{
"user": {
"roles": ["admin", "manager"]
}
}
You can do something like this:
<input type="checkbox" name="user[roles][]" value="admin">
