Undefined index if the array

Question

I am using following function to get the options stored in wordpress.

function get_settings( $option ) {
    $options = get_option( 'my_options', my_default_options() );
    return $options[ $option ];
}

In the above function my_default_options() returns an array which has default values. Now if I call the above function like: get_settings("title"); it will work fine if the "title" exists in the default options array.

However if title does not exist in the default options array, then I get the following warning:

Notice: Undefined index:

How can I fix this notice? I tried following:

function get_settings( $option ) {
    $defaults = my_default_options();

    if(in_array($option, $defaults)){
        $options = get_option( 'my_options', my_default_options() );
        return $options[ $option ];
    }
}

But it still returns same notice.

Rikesh · Accepted Answer · 2014-08-18 08:28:03Z

1

Make sure if it exists or not using isset

function get_settings( $option ) {
    $defaults = my_default_options();

    if(in_array($option, $defaults)){
        $options = get_option( 'my_options', my_default_options() );
        return isset($options[ $option ]) ?  $options[ $option ] : '';
    }
}

answered Aug 18, 2014 at 8:28

Rikesh

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Comments

webNeat · Accepted Answer · 2014-08-18 08:32:51Z

1

Use the function array_key_exists. in_array search for value while array_key_exists search for keys/indexes :

function get_settings( $option ) {
    $options = get_option( 'my_options', my_default_options() );
    if(array_key_exists($option, $options))
        return $options[ $option ];
    return "unknown";
}

answered Aug 18, 2014 at 8:32

webNeat

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