我有一个代码片段，它使用设置API在设置->常规中创建了一个选项。但是，这些值没有更新，我想知道是否有人可以帮助指出以下代码的问题
function admin_init_callback() {
register_setting( \'msp_settings\', \'msp_duration\' );
add_settings_section( \'msp_settings\', __(\'Multisite Posts Configuration\'), false, \'general\' );
add_settings_field( \'msp_duration\', __(\'Cache Duration\'), array($this, \'msp_settings_callback\'), \'general\', \'msp_settings\', array(
"id" => "msp_duration",
"type" => "dropdown",
"values"=> array(
array(
"name" => __(\'Every 6 hours\'),
"value" => 60 * 60 * 6,
),
array(
"name" => __(\'Every 12 hours\'),
"value" => 60 * 60 * 12,
),
array(
"name" => __(\'Every 24 hours\'),
"value" => 60 * 60 * 24,
),
array(
"name" => __(\'Every 48 hours\'),
"value" => 60 * 60 * 48,
),
array(
"name" => __(\'Every Week\'),
"value" => 60 * 60 * 24 * 7,
),
)
) );
return;
}
function msp_settings_callback($args) {
$value = get_option( $args["id"] );
if("dropdown" == $args["type"]) {
var_dump($value);
?>
<select name="<?php echo $args["id"]; ?>">
<?php
foreach ($args["values"] as $option) {
echo \'<option value="\' . $option["value"] . \'" \';
checked( $value, $option["value"], $echo = true );
echo \'>\' . $option["name"] . \'</option>\';
}
?>
</select>
<?php
}
}
最合适的回答,由SO网友:Pontus Abrahamsson 整理而成
给你，我的朋友：
add_filter( \'admin_init\' , \'register_fields\' );
function register_fields()
{
register_setting( \'general\', \'msp_duration\', \'esc_attr\' );
add_settings_field( \'msp_duration\', __(\'Cache Duration\') ,\'fields_html\', \'general\' );
}
function fields_html()
{
$value = get_option( \'msp_duration\' );
$fields = array(
array(
"name" => __(\'Every 6 hours\'),
"value" => 60 * 60 * 6,
),
array(
"name" => __(\'Every 12 hours\'),
"value" => 60 * 60 * 12,
),
array(
"name" => __(\'Every 24 hours\'),
"value" => 60 * 60 * 24,
),
array(
"name" => __(\'Every 48 hours\'),
"value" => 60 * 60 * 48,
),
array(
"name" => __(\'Every Week\'),
"value" => 60 * 60 * 24 * 7,
),
);
$output = \'<select name="msp_duration">\';
foreach( $fields as $option )
{
$output .= \'<option value="\'. $option[\'value\'] .\'" \'. selected( $option[\'value\'], $value, false ) .\'>\';
$output .= $option["name"];
$output .= \'</option>\';
}
$output .= \'</select>\';
echo $output;
}
将该值用于：
get_option( \'msp_duration\' );
