Select All Checkboxes

Nate_23 · November 30, 2011

Hey,

I'm trying to make a single checkbox that will select all the checkboxes in a group. I have a working code; at least it works on the first two sets of checkboxes. However, it does not work on the final set. (Quick note: the mysql stuff all works. It can easily be tested by changing the MySQL table name.)

If anyone has found a way around this problem that would be great.

Thanks!

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>Untitled Document</title>

</head>

<body>

function checkAll(checkName, checkValue) {

for (i = 0; i < checkName.length; i++)

checkName.checked = checkValue.checked? true:false

}

</script>

<?php

echo "<form name='first'>

<input type='checkbox' name='checkThem' onClick='checkAll(document.second.checkGroup,this)'>Check All (1)</form>

<form name='second'>

<input type='checkbox' name='checkGroup' >First<br/>

<input type='checkbox' name='checkGroup' >Second<br/>

<input type='checkbox' name='checkGroup' >Third<br/>

<input type='checkbox' name='checkGroup' >Fourth</form>";

echo "<br/>";

?>

<form name="third">

<input type="checkbox" name="checkThem" onClick="checkAll(document.fourth.checkGroup,this)">Check All (2)</form>

<form name="fourth">

<input type="checkbox" name="checkGroup" >First<br/>

<input type="checkbox" name="checkGroup" >Second<br/>

<input type="checkbox" name="checkGroup" >Third<br/>

<input type="checkbox" name="checkGroup" >Fourth

</form>

<?php

echo "<br/>";

include_once "connect_to_mysql.php";

$sql = "SELECT * FROM mysqltablename";

$result = mysql_query($sql) or die ("Couldn't get results.");

$num = mysql_num_rows($result);

echo "<form name='fifth'>

<input type='checkbox' name='checkThem' onClick='checkAll(document.sixth.checkGroup,this)'>Check All (3)</form>";

while($row = mysql_fetch_assoc($result)) {

$id = $row['id'];

echo "<form name='sixth'>

<input type='checkbox' name='checkGroup'>$id<br/></form>";

}

?>

</body>

</html>

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Select All Checkboxes

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