Short answer: your name attribute values must use the schema option_name[array_key]. So, when you use … <input name=”option_name[key1]”> <input name=”option_name[key2]”> … you get an array as option value in your validation function: array ( ‘key1’ => ‘some value’, ‘key2’ => ‘some other value’ ) PHP does that for you, this is not a WordPress feature. … Read more
Custom options – register, defaults and delete empty fields (Settings API)
File input returns null in theme options array
Real-time updating is achieved with JavaScript. Is your .js code working? The Codex has great examples and I think Otto has a defacto post about it somewhere on Google. This has everything you need: https://codex.wordpress.org/Theme_Customization_API
How do I build a settings panel under the plugin
I was able to achieve my goal not by creating a custom control with multiple input fields but by creating creating a custom control which still accepted a single input, but would display inline with other controls. Here’s the custom control for an inline numerical input: class Customizer_Number_Inline_Control extends WP_Customize_Control { public $fieldwidth=”text”; public $type=”number”; … Read more
No, you don’t need to validate/clean/escape because of security flaws in wordpress. WordPress use prepared statements by default. However, you can validate by yourself that the content is what you expecting. For example if you only want numbers you can use is_numeric() or is_float(). Or match the input value to an array of predefined strings.
Undefined index notice when using the $args parameter in add_settings_field()
I think similar question is answered here: Send user activation email when programmatically creating user Please have a look. Let me know if that solves the issue.
An option is a meta information saved in the database as a string. An array is a memory specific variable that has its own characteristics. But to every problem there is a workaround: $myoption = json_encode($the_array(); add_option(‘myoption’, $myoption, ”, ‘yes’); Now to fetch it: $myoption = json_decode(get_option(‘myoption’)); Voila. When saving the option I converting to … Read more