Php 参数绑定不起作用的mysqli更新

我试图构建一个可重用的函数，用一条准备好的语句更新表中的一行。在翻阅了php.net文档之后，我想到了这个。我没有收到任何错误消息，但它没有更新表。（我编写了一个类似的函数来插入记录，效果很好。）希望我只是缺少了一些简单的东西，有人可以很容易地发现。：）

$\u POST

被传递到

$data

，类似

的数组（'first\u name'=>'s'，'last\u name'=>'s'等）

被传递到

$fields

我做了一系列var_转储，看看发生了什么，这些就是结果

$params = array(17) { 
[0]=> string(16) "ssidssdsdssssssi" 
    [1]=> &string(4) "asdf" 
    [2]=> &string(0) "" 
    [3]=> &string(1) "0" 
    [4]=> &string(4) "0.00" 
    [5]=> &string(0) "" 
    [6]=> &string(10) "0000-00-00" 
    [7]=> &string(4) "0.00" 
    [8]=> &string(10) "0000-00-00" 
    [9]=> &string(4) "0.00" 
    [10]=> &string(0) "" 
    [11]=> &string(0) "" 
    [12]=> &string(26) "bc__1412690490_384x523.jpg" 
    [13]=> &string(0) "" 
    [14]=> &string(0) "" 
    [15]=> &string(0) "" 
    [16]=> &int(2) 
}
$fields = array(15) { 
    ["edition"]=> string(1) "s" 
    ["ISBN"]=> string(1) "s" 
    ["pages"]=> string(1) "i" 
    ["price"]=> string(1) "d" 
    ["pub_year"]=> string(1) "s" 
    ["release_date"]=> string(1) "s" 
    ["pre_order_price"]=> string(1) "d" 
    ["sale_start_date"]=> string(1) "s" 
    ["sale_price"]=> string(1) "d" 
    ["kindle"]=> string(1) "s" 
    ["image_1"]=> string(1) "s" 
    ["image_2"]=> string(1) "s" 
    ["paypal_script"]=> string(1) "s" 
    ["pre_order_paypal_script"]=> string(1) "s" 
    ["sale_paypal_script"]=> string(1) "s" 
}   
$fieldnames = array(15) { 
    [0]=> string(7) "edition" 
    [1]=> string(4) "ISBN" 
    [2]=> string(5) "pages" 
    [3]=> string(5) "price" 
    [4]=> string(8) "pub_year" 
    [5]=> string(12) "release_date" 
    [6]=> string(15) "pre_order_price"
    [7]=> string(15) "sale_start_date" 
    [8]=> string(10) "sale_price" 
    [9]=> string(6) "kindle" 
    [10]=> string(7) "image_1" 
    [11]=> string(7) "image_2" 
    [12]=> string(13) "paypal_script" 
    [13]=> string(23) "pre_order_paypal_script" 
    [14]=> string(18) "sale_paypal_script" 
}
$query=string(232) "update editions set edition=?,ISBN=?,pages=?,price=?,pub_year=?,release_date=?,pre_order_price=?,sale_start_date=?,sale_price=?,kindle=?,image_1=?,image_2=?,paypal_script=?,pre_order_paypal_script=?,sale_paypal_script=? where id = ?"

$stmt = object(mysqli_stmt)#2 (10) { //(var_dump placed after $stmt->execute)
    ["affected_rows"]=> int(0),
    ["insert_id"]=> int(0), 
    ["num_rows"]=> int(0),
    ["param_count"]=> int(16),
    ["field_count"]=> int(0),
    ["errno"]=> int(0),
    ["error"]=> string(0) "",
    ["error_list"]=> array(0) { },
    ["sqlstate"]=> string(5) "00000",
    ["id"]=> int(1)
}

---

运行此函数时，您可以发布SQL的外观吗？这是发送到$mysqli->prepare（$query）：$query=string（232）的查询字符串“更新版本集版本=？，ISBN=？，页面=？，价格=？，发布年份=？，发布日期=？，预订单价格=？，销售开始日期=？，销售价格=？，kindle=？，图像1=？，图像2=？，paypal脚本=？，预订单paypal脚本=？，销售paypal脚本=？”？其中id=？“在那之后，我不知道如何找出从stmt->bind_paramsolved返回的查询是什么样子的！我知道这一定是些愚蠢的事情，但我发布的任何东西都没有。我将错误的变量传递到id字段。没有传递id为的记录，因此我仍然不确定为什么没有看到某种错误；ini设置（“显示错误”，1）在您的任何文件中？这可能就是它没有返回任何错误的原因。

$params = array(17) { 
[0]=> string(16) "ssidssdsdssssssi" 
    [1]=> &string(4) "asdf" 
    [2]=> &string(0) "" 
    [3]=> &string(1) "0" 
    [4]=> &string(4) "0.00" 
    [5]=> &string(0) "" 
    [6]=> &string(10) "0000-00-00" 
    [7]=> &string(4) "0.00" 
    [8]=> &string(10) "0000-00-00" 
    [9]=> &string(4) "0.00" 
    [10]=> &string(0) "" 
    [11]=> &string(0) "" 
    [12]=> &string(26) "bc__1412690490_384x523.jpg" 
    [13]=> &string(0) "" 
    [14]=> &string(0) "" 
    [15]=> &string(0) "" 
    [16]=> &int(2) 
}
$fields = array(15) { 
    ["edition"]=> string(1) "s" 
    ["ISBN"]=> string(1) "s" 
    ["pages"]=> string(1) "i" 
    ["price"]=> string(1) "d" 
    ["pub_year"]=> string(1) "s" 
    ["release_date"]=> string(1) "s" 
    ["pre_order_price"]=> string(1) "d" 
    ["sale_start_date"]=> string(1) "s" 
    ["sale_price"]=> string(1) "d" 
    ["kindle"]=> string(1) "s" 
    ["image_1"]=> string(1) "s" 
    ["image_2"]=> string(1) "s" 
    ["paypal_script"]=> string(1) "s" 
    ["pre_order_paypal_script"]=> string(1) "s" 
    ["sale_paypal_script"]=> string(1) "s" 
}   
$fieldnames = array(15) { 
    [0]=> string(7) "edition" 
    [1]=> string(4) "ISBN" 
    [2]=> string(5) "pages" 
    [3]=> string(5) "price" 
    [4]=> string(8) "pub_year" 
    [5]=> string(12) "release_date" 
    [6]=> string(15) "pre_order_price"
    [7]=> string(15) "sale_start_date" 
    [8]=> string(10) "sale_price" 
    [9]=> string(6) "kindle" 
    [10]=> string(7) "image_1" 
    [11]=> string(7) "image_2" 
    [12]=> string(13) "paypal_script" 
    [13]=> string(23) "pre_order_paypal_script" 
    [14]=> string(18) "sale_paypal_script" 
}
$query=string(232) "update editions set edition=?,ISBN=?,pages=?,price=?,pub_year=?,release_date=?,pre_order_price=?,sale_start_date=?,sale_price=?,kindle=?,image_1=?,image_2=?,paypal_script=?,pre_order_paypal_script=?,sale_paypal_script=? where id = ?"

$stmt = object(mysqli_stmt)#2 (10) { //(var_dump placed after $stmt->execute)
    ["affected_rows"]=> int(0),
    ["insert_id"]=> int(0), 
    ["num_rows"]=> int(0),
    ["param_count"]=> int(16),
    ["field_count"]=> int(0),
    ["errno"]=> int(0),
    ["error"]=> string(0) "",
    ["error_list"]=> array(0) { },
    ["sqlstate"]=> string(5) "00000",
    ["id"]=> int(1)
}