How to create a shortcode with 1 parameter (atts)

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I am having trouble getting a shortcode to work with 1 attribute.

Here is my shortcode [sme_user-email userID="2"]

Here are my scripts – none of them work.

function getUserEmail_func($atts) {
    extract(shortcode_atts(array('userID' => 1,), $atts));
    $user_info = get_userdata($atts);
    return $user_info->user_email;
}
add_shortcode('sme_user-email', 'getUserEmail_func');

.

function getUserEmail_func($atts) {
    $user_info = get_userdata($atts);
    return $user_info->user_email;
}
add_shortcode('sme_user-email', 'getUserEmail_func');

.

function getUserEmail_func($atts) {
    $user_info = get_userdata($atts['userID]');
    return $user_info->user_email;
}
add_shortcode('sme_user-email', 'getUserEmail_func');

This one works — but I do not want to hardcode the user ID. I was hoping to be able to do it dynamically

function getUserEmail_func($atts) {
    $user_info = get_userdata(2);
    return $user_info->user_email;
}
add_shortcode('sme_user-email', 'getUserEmail_func');

 

1

Here is how you should create shortcode.

First you will have to define $atts item in get_userdata because $atts is an array. Also I think there is also some issues with uppercase attributes names, so you should use attribute in lower case. So instead of userID, use userid.

function getUserEmail_func( $atts ) {
    $user_info = get_userdata( $atts['userid'] );
    return $user_info->user_email;
}
add_shortcode( 'sme_user-email', 'getUserEmail_func' );

Have tested it and it’s working.

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