{html_options} is a
custom function
that creates the html <select><option> group
with the assigned data. It takes care of which item(s) are selected by
default as well.
| Attribute Name | Type | Required | Default | Description |
|---|---|---|---|---|
| values | array | Yes, unless using options attribute | n/a | An array of values for dropdown |
| output | array | Yes, unless using options attribute | n/a | An array of output for dropdown |
| selected | string/array | No | empty | The selected option element(s) |
| options | associative array | Yes, unless using values and output | n/a | An associative array of values and output |
| name | string | No | empty | Name of select group |
Required attributes are
valuesandoutput, unless you use the combinedoptionsinstead.If the optional
nameattribute is given, the<select></select>tags are created, otherwise ONLY the<option>list is generated.If a given value is an array, it will treat it as an html
<optgroup>, and display the groups. Recursion is supported with<optgroup>.All parameters that are not in the list above are printed as name/value-pairs inside the
<select>tag. They are ignored if the optionalnameis not given.All output is XHTML compliant.
Пример 8.9. Associative array with the options attribute
<?php
$smarty->assign('myOptions', array(
1800 => 'Joe Schmoe',
9904 => 'Jack Smith',
2003 => 'Charlie Brown')
);
$smarty->assign('mySelect', 9904);
?>
The following template will generate a drop-down list.
Note the presence of the name attribute
which creates the <select> tags.
{html_options name=foo options=$myOptions selected=$mySelect}
Output of the above example would be:
<select name="foo"> <option value="1800">Joe Schmoe</option> <option value="9904" selected="selected">Jack Smith</option> <option value="2003">Charlie Brown</option> </select>
Пример 8.10. Dropdown with seperate arrays for values and
ouptut
<?php
$smarty->assign('cust_ids', array(56,92,13));
$smarty->assign('cust_names', array(
'Joe Schmoe',
'Jane Johnson',
'Charlie Brown'));
$smarty->assign('customer_id', 92);
?>
The above arrays would be output with the following template
(note the use of the php
count() function as a modifier
to set the select size).
<select name="customer_id" size="{$cust_names|@count}">
{html_options values=$cust_ids output=$cust_names selected=$customer_id}
</select>
The above example would output:
<select name="customer_id" size="3">
<option value="56">Joe Schmoe</option>
<option value="92" selected="selected">Jane Johnson</option>
<option value="13">Charlie Brown</option>
</select>
Пример 8.11. Database example (eg ADODB or PEAR)
<?php
$sql = 'select type_id, types from contact_types order by type';
$smarty->assign('contact_types',$db->getAssoc($sql));
$sql = 'select contact_id, name, email, contact_type_id
from contacts where contact_id='.$contact_id;
$smarty->assign('contact',$db->getRow($sql));
?>
Where a template could be as follows. Note the use of the
truncate
modifier.
<select name="type_id">
<option value='null'>-- none --</option>
{html_options options=$contact_types|truncate:20 selected=$contact.type_id}
</select>
Пример 8.12. Dropdown's with <optgroup>
<?php
$arr['Sport'] = array(6 => 'Golf', 9 => 'Cricket',7 => 'Swim');
$arr['Rest'] = array(3 => 'Sauna',1 => 'Massage');
$smarty->assign('lookups', $arr);
$smarty->assign('fav', 7);
?>
The script above and the following template
{html_options name=foo options=$lookups selected=$fav}
would output:
<select name="foo"> <optgroup label="Sport"> <option value="6">Golf</option> <option value="9">Cricket</option> <option value="7" selected="selected">Swim</option> </optgroup> <optgroup label="Rest"> <option value="3">Sauna</option> <option value="1">Massage</option> </optgroup> </select>
See also
{html_checkboxes}
and
{html_radios}