Stephen Neigaard wrote:
I would like to have a unknown number of generated check boxes like this:
<input type="checkbox" name="chk01" />
<input type="checkbox" name="chk02" />
<input type="checkbox" name="chk0X" />
And the name will be generated "chk01 to chk99", but how do I make the
receiving PHP script that "scans" for post variables that are sent, so
that I can work on this information?
Inspect this code example to see a way to handle this problem using magic
form variables in contained POST arrays:
<code>
<h4>Test of Multiple Checkboxes</h4>
<form method="post" action="<?php echo($_SERVER['PHP_SELF']); ?>">
<?php
function getCheckboxes() {
for ($i = 100; $i > 0; $i--) {
$tr = $i % 5 === 0 ? Array('','') : Array('<tr>','</tr>');
$str .= "<label><input type=\"checkbox\" " .
"name=\"form[checks][]\" value=\"$i\" /> Input
#$i</label>\n";
}
return $str;
}
echo(getCheckBoxes());
?>
<p><input type="submit" /></p>
</form>
<hr />
<pre>
<?php
if (!empty($_POST)) {
print_r($_POST);
}
?>
</pre>
<h4>Consuming of form post</h4>
<p>An example of inverting a posted checkbox array to support $checked[45]
=== true behavior, making it easier to access and test the posted
content</p>
<pre>
<?php
// This will return an array that has inverted the posted
// items that were in checkboxes and had a state of
// checked=true
function consumeFormChecks($arr) {
$consume = Array();
for ($i = 0; $i < count($arr); $i++) {
$consume[$arr[$i]] = true;
}
return $consume;
}
if (!empty($_POST)) {
print_r(consumeFormChecks($_POST['form']['checks']));
}else {
echo('<h4>Please select some random checkboxes above' .
' and submit the form</h4>');
}
?>
</pre>
</code>
--
Jared Farrish
Intermediate Web Developer
Denton, Tx
Abraham Maslow: "If the only tool you have is a hammer, you tend to see
every problem as a nail." $$
