个人中心
gpt4 book ai didi

php - 必须插入varchar时如何将数组插入MySQL

转载 作者：可可西里 更新时间：2023-11-01 08:10:21 25 4
gpt4 key购买 nike

See the image here我有一个收集以下信息的表格:年份(int)、案例编号(varchar)和接收时间(varchar)。由于年份是数字，我在 MySQL 中设置了 int，然后 Case number 和 Time Received 都有数字和字母，因此我在 MYSQL 中设置了 varchar。我使用数组是因为我插入了很多记录。我对数组使用 mysql_real_escape_string()。但它没有用。如何将包含字母、符号和数字的数组传递到 MySQL 中？谢谢你。 

//Output any connection error
if ($mysqli->connect_error) {
die('Error : ('. $mysqli->connect_errno .') '. $mysqli->connect_error);
}
if (isset($_REQUEST['submit']) && isset($_REQUEST['year']) ) {
  foreach ($_REQUEST['year'] as $k=> $value ){ // loop through array

    $year     = $_REQUEST['year'];
    $c_no        = mysql_real_escape_string($_REQUEST['cs']);
    $t_r        = mysql_real_escape_string($_REQUEST['t_r']);


$mysqli->query("INSERT INTO firearms_id_secs (year, case_no, t_received) VALUES 
   ($year[$k], $c_no[$k], $t_r[$k])");
}
}
?>

这是HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Add more fields using jQuery</title>
<script src="jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
var maxField = 10; //Input fields increment limitation
var addButton = $('.add_button'); //Add button selector
var wrapper = $('.field_wrapper'); //Input field wrapper
var fieldHTML = '<div><input type="text" name="year[]" value="" placeholder="Year"/><input type="text" name="cs[]" value="" placeholder="Case no"/><input type="text" name="t_r[]" value="" placeholder="Time Received"/><a href="javascript:void(0);" class="remove_button" title="Remove field"><img src="remove-icon.png"/></a></div>'; //New input field html 
var x = 1; //Initial field counter is 1
$(addButton).click(function(){ //Once add button is clicked
    if(x < maxField){ //Check maximum number of input fields
        x++; //Increment field counter
        $(wrapper).append(fieldHTML); // Add field html
    }
});
$(wrapper).on('click', '.remove_button', function(e){ //Once remove button is clicked
    e.preventDefault();
    $(this).parent('div').remove(); //Remove field html
    x--; //Decrement field counter
    });
});
</script>
<style type="text/css">
input[type="text"]{height:20px; vertical-align:top;}
.field_wrapper div{ margin-bottom:10px;}
.add_button{ margin-top:10px; margin-left:10px;vertical-align: text-bottom;}
.remove_button{ margin-top:10px; margin-left:10px;vertical-align: text-    bottom;}
</style>
</head>
<body>
<form name="codexworld_frm" action="" method="post">
<div class="field_wrapper">
<div>

        <a href="javascript:void(0);" class="add_button" title="Add field"><img     src="add-icon.png"/></a>
</div>
</div>
<input type="submit" name="submit" value="SUBMIT"/>
</form>
</body>
</html>

最佳答案

提交表单时_POST(或_REQUEST)看起来像这样

array (
  'year' => 
  array (
    0 => '2001',
    1 => '2010',
  ),
  'cs' => 
  array (
    0 => '1',
    1 => '2',
  ),
  't_r' => 
  array (
    0 => '12:00:00',
    1 => '13:00:00',
  ),
  'submit' => 'SUBMIT',
)

如果像这样就更好了

array(
    'records' = array(
        0=>array('year'=>'2001', 'cs'=>'1', 't_r'=>'12:00:00'),
        0=>array('year'=>'2010', 'cs'=>'2', 't_r'=>'13:00:00'),
    ),
)

这需要更改 javascript 代码(我现在太懒了...所以我使用 SPL MultipleIterator 来“模拟”该数据格式)

if ( isset($_POST['submit']) ) {
    // add tests for is_array() POST[year], POST[cs] and POST[t_r]

    // this will make mysqli throw an exception whenever an operation results in an 
    // (mysql) error code other than 0 -> no further error handling included in this script....
    mysqli_report(MYSQLI_REPORT_ALL|MYSQLI_REPORT_STRICT);
    $mysqli = new mysqli('localhost', 'localonly', 'localonly', 'test');

    // create a prepared statement and bind the parameters, see http://docs.php.net/mysqli.quickstart.prepared-statements
    $stmt = $mysqli->prepare('INSERT INTO firearms_id_secs (year, case_no, t_received) VALUES (?,?,?)');
    if ( !$stmt->bind_param('sss', $year, $caseno, $time) ) { // binding all parameters as strings ...let mysql's type system handle it...
        yourErrorHandlerHere(); // or throw an exception....
    }
    // when ever the statement is executed, the current values (at _that_ moment) in $year, $caseno and $time will be used where the ? are in the statement

    // this wouldn't be necessary if the POST body looked like record[1][year]=2001&....
    $mit = new MultipleIterator;
    $mit->attachIterator( new ArrayIterator($_POST['year']) );
    $mit->attachIterator( new ArrayIterator($_POST['cs']) );
    $mit->attachIterator( new ArrayIterator($_POST['t_r']) );

    foreach( $mit as $record ) {
        echo 'executing statement with [', join(',', $record), "]<br/>\r\n";
        // assign the values to the bound parameters
        list($year,$caseno,$time) = $record;
        // and then execute the statement (with those values)

        /*
        you might want to wrap this in a try-catch block, so a single faulty record will not throw off your entire script.
        You might also want to look into transactions (in case a single faulty record is supposed to roll back the entire operation)
        see http://docs.php.net/language.exceptions , http://dev.mysql.com/doc/refman/5.7/en/commit.html
        */
        $stmt->execute();
    }
}

编辑:a) 要允许 NULL 值，您应该在参数中用 NULL 替换空字符串

...
// replace empty strings by NULL
$record = array_map(
    function($e) {
        return 0<strlen(trim($e)) ? $e : NULL;
    },
    $record
);

// assign the values to the bound parameters
list($year,$caseno,$time) = $record;
...

b) 我不知道在这种情况下为什么以及在哪里需要迭代器的 key ，但是......

<?php
$data=array(
    'maj'=>new ArrayIterator(array('A','B','C')),
    'min'=>new ArrayIterator(array('a','b','c')),
    'foo'=>new ArrayIterator(array('do'=>'re', 'mi'=>'fa', 'so'=>'la', 'ti')),
);

$mit = new MultipleIterator(MultipleIterator::MIT_NEED_ANY|MultipleIterator::MIT_KEYS_ASSOC);
$mit->attachIterator( $data['maj'], 'majuscule' );
$mit->attachIterator( $data['min'], 'minuscule' );
$mit->attachIterator( $data['foo'], 'lalala' );

foreach( $mit as $r ) {
    var_export($r);
}

打印

array (
  'majuscule' => 'A',
  'minuscule' => 'a',
  'lalala' => 're',
)array (
  'majuscule' => 'B',
  'minuscule' => 'b',
  'lalala' => 'fa',
)array (
  'majuscule' => 'C',
  'minuscule' => 'c',
  'lalala' => 'la',
)array (
  'majuscule' => NULL,
  'minuscule' => NULL,
  'lalala' => 'ti',
)

关于php - 必须插入varchar时如何将数组插入MySQL，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/36255643/

25 4 0
文章推荐： c# - 检查机器上的第三方防火墙
文章推荐： android - 像在 gmail 中一样在 android 上推送刷新(而不是像在 iphone 上那样推送刷新)
文章推荐： c# - 将 IEnumerable 参数传递给 WebAPI
文章推荐： android - 在 android 中的 Star TSP100 打印机上创建光栅收据
可可西里
个人简介

我是一名优秀的程序员,十分优秀！

滴滴打车优惠券免费领取
滴滴打车优惠券
Copyright 2021 - 2024 cfsdn All Rights Reserved 蜀ICP备2022000587号
广告合作:1813099741@qq.com 6ren.com