準備失敗：（2014）命令不同步;你現在不能運行這個命令

我已經在這裏找到了很多答案，但是它們都不起作用。根據我的理解，第一個數據庫調用與第二個數據庫調用混淆了。但我認爲通過使用close（）和unset（）應該關閉第一個調用...準備失敗：（2014）命令不同步;你現在不能運行這個命令

任何想法？我需要從第一查詢結果，然後就行數爲第二個的...

//See if there are any sales that need printing 
if ($stmt = $mysqli->prepare("SELECT quantity FROM sales WHERE printed = 0 AND DATE_FORMAT(saledatetime, '%Y/%m/%d') = ? AND venue = ?")) { 
    $stmt->bind_param('ss',$_SESSION['session_date'],str_replace(" ","",strtolower($_SESSION['venue']))); 
    $stmt->execute(); 
    $stmt->store_result(); 
    $stmt->bind_result($qty); 

    $new = 0; 
    while($stmt->fetch()) { 
     $new = ($new + $qty); 
    } 
    //Close connection 
    $stmt->close(); 
    unset($stmt); 
} 

//See if an upload has been done 
if ($stmt = $mysqli->prepare("SELECT id FROM images WHERE udate = ? AND venue = ?")) { 
    $stmt->bind_param('ss',$_SESSION['session_date'],str_replace(" ","",strtolower($_SESSION['venue']))); 
    $stmt->execute(); 
    $stmt->bind_result($imgs_tmp); 
    $rows = $stmt->num_rows; 
}

編輯： 完整標題代碼

<?php 
session_start(); 
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1 
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past 

//Make additional session keys 
$_SESSION['ROOT_DIR'] = "http://".$_SERVER['HTTP_HOST']."/ppa/"; 
$_SESSION['ROOT_PATH'] = $_SERVER['DOCUMENT_ROOT']."/ppa/"; 

include "includes/db_connect.php"; 
include "includes/functions.php"; 
include "includes/required.php"; 

//See if there are any sales that need printing 
if ($stmt = $mysqli->prepare("SELECT quantity FROM sales WHERE printed = 0 AND DATE_FORMAT(saledatetime, '%Y/%m/%d') = ? AND venue = ?")) { 
    $stmt->bind_param('ss',$_SESSION['session_date'],str_replace(" ","",strtolower($_SESSION['venue']))); 
    $stmt->execute(); 
    $stmt->store_result(); 
    $stmt->bind_result($qty); 

    $new = 0; 
    while($stmt->fetch()) { 
     $new = ($new + $qty); 
    } 
    //Close connection 
    $stmt->free_result(); 
    $stmt->close(); 
} 

//See if an upload has been done 
if ($stmt = $mysqli->prepare("SELECT id FROM images WHERE udate = ? AND venue = ?")) { 
    $stmt->bind_param('ss',$_SESSION['session_date'],str_replace(" ","",strtolower($_SESSION['venue']))); 
    $stmt->execute(); 
    $stmt->bind_result($imgs_tmp); 
    $rows = $stmt->num_rows; 

    $stmt->free_result(); 
    $stmt->close(); 
} 

?> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

來源

2014-02-10 Martyn Ball

你試過在'$ stmt-> close（）;'之前運行'$ stmt-> free_result（）;' – Diamondo25

是的，如果我這樣做的第二個查詢以及錯誤不顯示，但我沒有返回行時應該是：S –

這是整個腳本？第二個查詢沒有'$ stmt-> close（）;'但應該有。 –

得到它的工作。

//See if an upload has been done 
if ($stmt = $mysqli->prepare("SELECT id FROM images WHERE udate = ? AND venue = ?")) { 
    $stmt->bind_param('ss',$_SESSION['session_date'],str_replace(" ","",strtolower($_SESSION['venue']))); 
    $stmt->execute(); 
    $stmt->bind_result($m); 
    while($stmt->fetch()) { $m; } 
    $rows = $stmt->num_rows; 
    $stmt->free_result(); 
    $stmt->close(); 
}

只是簡單地遍歷結果，但實際上並沒有對它們做任何事情。

來源

2014-02-11 16:55:24

準備失敗：（2014）命令不同步;你現在不能運行這個命令

回答

相關問題