在while循环中执行函数

如果movement存在，我有一个函数会返回bool（true）或bool（false）。

function movement_performed_today($class_id, $client_id){
$class_id = (int)$class_id;
$client_id = (int)$client_id;

$query = mysql_query("SELECT COUNT(`movement`) FROM `completed_movements` WHERE `class_id` = '$class_id' AND `client_id` = '$client_id' AND `date` = CURDATE()");
$movement_performed = mysql_fetch_row($query);
return ($movement_performed[0] > 0);
}

我有一个while循环，我想在其中调用这个函数，如果它返回false，则执行函数completed_movement。我尝试了很多不同的方法，但似乎都无法奏效。如有任何信息，我们将不胜感激。

if (empty($_POST)=== false){
$i = 0;
while (isset($_POST["first_name"][$i])) {
    $movement_data = array(   
    'user_id'       => $session_user_id,   
    'class_id'      => $class_id,   
    'class_name'    => $class_name,
    'client_id'     => $_POST['client_id'][$i],    
    'first_name'    => $_POST['first_name'][$i],   
    'last_name'     => $_POST['last_name'][$i],   
    'nickname'      => $_POST['nickname'][$i],   
    'order'         => $_POST['order'][$i],   
    'movement'      => $_POST['movement'][$i],   
    'rep_set_sec'   => $_POST['rep_set_sec'][$i],   
    'rest'          => $_POST['rest'][$i],   
    'date'          => $today   
    );  
 //assign variable to the function
    $isPerformed = movement_performed_today($class_id, $_POST['client_id'][i]);
    //if return false perform this function
    if(! $isPerformed){ completed_movement($movement_data);}
   $i++; 
   } 
} // if empty   

我在这里要做的是，每次它循环检查函数movement_performed_today是真是假。如果返回false，则将此_POST数据插入数据库。不确定我这样做是否正确，因为即使函数返回true，它仍然调用completed_motion函数并将信息发布到db。

我相信问题可能就在这里。早些时候它会返回true或false，但现在只是返回false，即使存在movement。此代码：

$movement_performed = mysql_fetch_row($query);
//return ($movement_performed[0] > 0);
var_dump($movement_performed);

返回此：

array(1) { [0]=> string(1) "0" } 
array(1) { [0]=> string(1) "0" }

如果存在movement，则"0"不应为"1"或更高，具体取决于它与查询匹配的次数。

以下是工作查询：

function movement_performed_today($class_id, $client_id, $movement){
$class_id = (int)$class_id;
$client_id = (int)$client_id;

$query = mysql_query("SELECT COUNT(`movement`) FROM `completed_movements` WHERE `class_id` = '$class_id' AND `client_id` = '$client_id' AND `movement` = '$movement' AND `date` = CURDATE()");
$movement_performed = mysql_fetch_row($query);  
return ($movement_performed[0] > 0);
}

这是边工作边循环。

if (empty($_POST)=== false){
$i = 0;
while (isset($_POST["first_name"][$i])) {
    $movement_data = array(   
    'user_id'       => $session_user_id,   
    'class_id'      => $class_id,   
    'class_name'    => $class_name,
    'client_id'     => $_POST['client_id'][$i],    
    'first_name'    => $_POST['first_name'][$i],   
    'last_name'     => $_POST['last_name'][$i],   
    'nickname'      => $_POST['nickname'][$i],   
    'order'         => $_POST['order'][$i],   
    'movement'      => $_POST['movement'][$i],   
    'rep_set_sec'   => $_POST['rep_set_sec'][$i],   
    'rest'          => $_POST['rest'][$i],   
    'date'          => $today   
    );  
 //check not already performed today
    $isPerformed = movement_performed_today($class_id, $_POST['client_id'][$i], $_POST['movement'][$i]);
    //if not performed then do insert
    if (! $isPerformed){ completed_movement($movement_data);}
   $i++; 
   } 
} // if empty   

谢谢大家的帮助！