Question

我需要一個變量傳遞到其他功能外一個foreach

function eri_add_custom_user_profile_fields($user) { 



$sql="SELECT `pid`, 
max(case when `meta_key` = 'nome' then `meta_value` end) as nome , 
max(case when `meta_key` = 'pagina' then `meta_value` end) as pagina , 
max(case when `meta_key` = 'punti' then `meta_value` end) as punti , 
max(case when `meta_key` = 'cpc' then `meta_value` end) as cpc 
FROM wp_usermeta 

GROUP BY `pid` 

ORDER BY cpc DESC"; 

global $wpdb; 
$usermeta = $wpdb->get_results($sql) or die(mysql_error()); 

foreach ($usermeta as $post) { 

echo $post->pid; //i want update the generated user id 
echo $post->nome; 
echo $post->pagina; 
echo $post->punti; 
echo $post->cpc; 

$result = $post->punti-$post->cpc; 

echo $result; 

<input type="hidden" name="ptotali" id="ptotali" value="<?php echo $result; ?>"   class="regular-text" /> 

<input type="submit" name="updateuser" id="updateuser" value="update" class="regular- text" /> 
} 

} 

function eri_save_custom_user_profile_fields($user_id) { 

if (!current_user_can('edit_user', $user_id)) 
    return FALSE; 

// Update and Save Field 
update_usermeta($pid, 'ptotali', $_POST['ptotali']); 
} 

    add_action('show_user_profile', 'eri_add_custom_user_profile_fields'); 
    add_action('edit_user_profile', 'eri_add_custom_user_profile_fields'); 

    add_action('personal_options_update', 'eri_save_custom_user_profile_fields'); 
    add_action('edit_user_profile_update', 'eri_save_custom_user_profile_fields'); 

用相同的代碼手動把PID，例如3它正確地更新PID數字3，但變量$ PID沒有被識別...什麼是錯的？

Answer 1

簡單嗎？該函數內部沒有定義$pid。