我想编写脚本,带有多个插入查询的函数。 让我更好地解释一下。
我以html格式输入一个quantity
。
我有MySQL查询将registered user
插入表中。
所以我希望我的函数为“数量”次插入此查询。
mysql_query("INSERT INTO `pxlot` (realname,email,address,phone,status,regtime,ip)
VALUES ('$realname','$email','$address','$phone','0','$dateTime','$ip')")
or die (mysql_error()); // Inserts the user.
例如插入3次。 有什么建议?
答案 0 :(得分:90)
INSERT INTO table (a,b) VALUES (1,2), (2,3), (3,4);
答案 1 :(得分:19)
以下是一些方法
INSERT INTO pxlot (realname,email,address,phone,status,regtime,ip)
select '$realname','$email','$address','$phone','0','$dateTime','$ip'
from SOMETABLEWITHTONSOFROWS LIMIT 3;
或
INSERT INTO pxlot (realname,email,address,phone,status,regtime,ip)
select '$realname','$email','$address','$phone','0','$dateTime','$ip'
union all select '$realname','$email','$address','$phone','0','$dateTime','$ip'
union all select '$realname','$email','$address','$phone','0','$dateTime','$ip'
或
INSERT INTO pxlot (realname,email,address,phone,status,regtime,ip)
values ('$realname','$email','$address','$phone','0','$dateTime','$ip')
,('$realname','$email','$address','$phone','0','$dateTime','$ip')
,('$realname','$email','$address','$phone','0','$dateTime','$ip')
答案 2 :(得分:17)
在大多数情况下,使用一个Insert语句插入多个记录在MySQL中要比在PHP中插入带有for / foreach循环的记录快得多。
我们假设$ column1和$ column2是由html表单发布的具有相同大小的数组。
您可以像这样创建查询:
<?php
$query = 'INSERT INTO TABLE (`column1`, `column2`) VALUES ';
$query_parts = array();
for($x=0; $x<count($column1); $x++){
$query_parts[] = "('" . $column1[$x] . "', '" . $column2[$x] . "')";
}
echo $query .= implode(',', $query_parts);
?>
如果为两条记录发布数据,查询将变为:
INSERT INTO TABLE(
column1
,column2
)VALUES('data','data'),('data','data')
答案 3 :(得分:1)
虽然使用单个 INSERT
语句插入多行通常更快,但它会导致更复杂且通常不安全的代码。下面我将介绍使用 PHP 一次性插入多条记录的最佳实践。
要同时向数据库中插入多行新行,需要遵循以下3个步骤:
INSERT
声明使用数据库事务可确保将数据保存在一块并显着提高性能。
PDO 是 PHP 中最常见的数据库扩展选择,使用 PDO 插入多条记录非常简单。
$pdo = new \PDO("mysql:host=localhost;dbname=test;charset=utf8mb4", 'user', 'password', [
\PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION,
\PDO::ATTR_EMULATE_PREPARES => false
]);
// Start transaction
$pdo->beginTransaction();
// Prepare statement
$stmt = $pdo->prepare('INSERT
INTO `pxlot` (realname,email,address,phone,status,regtime,ip)
VALUES (?,?,?,?,?,?,?)');
// Perform execute() inside a loop
// Sample data coming from a fictitious data set, but the data can come from anywhere
foreach ($dataSet as $data) {
// All seven parameters are passed into the execute() in a form of an array
$stmt->execute([$data['name'], $data['email'], $data['address'], getPhoneNo($data['name']), '0', $data['regtime'], $data['ip']]);
}
// Commit the data into the database
$pdo->commit();
mysqli 扩展使用起来有点麻烦,但操作原理非常相似。函数名不同,参数略有不同。
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new \mysqli('localhost', 'user', 'password', 'database');
$mysqli->set_charset('utf8mb4');
// Start transaction
$mysqli->begin_transaction();
// Prepare statement
$stmt = $mysqli->prepare('INSERT
INTO `pxlot` (realname,email,address,phone,status,regtime,ip)
VALUES (?,?,?,?,?,?,?)');
// Perform execute() inside a loop
// Sample data coming from a fictitious data set, but the data can come from anywhere
foreach ($dataSet as $data) {
// mysqli doesn't accept bind in execute yet, so we have to bind the data first
// The first argument is a list of letters denoting types of parameters. It's best to use 's' for all unless you need a specific type
// bind_param doesn't accept an array so we need to unpack it first using '...'
$stmt->bind_param('sssssss', ...[$data['name'], $data['email'], $data['address'], getPhoneNo($data['name']), '0', $data['regtime'], $data['ip']]);
$stmt->execute();
}
// Commit the data into the database
$mysqli->commit();
这两个扩展都提供了使用事务的能力。使用事务执行准备好的语句大大提高了性能,但仍然不如单个 SQL 查询。然而,差异是如此的微不足道,为了简洁和干净的代码,多次执行准备好的语句是完全可以接受的。如果您需要一个更快的选项来一次将多条记录插入到数据库中,那么很可能 PHP 不是正确的工具。
答案 4 :(得分:0)
如果您想要插入多个值,请从具有不同帖子值但插入相同表格的多个输入中说明,然后只需使用:
mysql_query("INSERT INTO `table` (a,b,c,d,e,f,g) VALUES
('$a','$b','$c','$d','$e','$f','$g'),
('$a','$b','$c','$d','$e','$f','$g'),
('$a','$b','$c','$d','$e','$f','$g')")
or die (mysql_error()); // Inserts 3 times in 3 different rows
答案 5 :(得分:0)
使用以下功能在单个查询中插入多行
function multiple_insert($table, $fields = array(), $values = array(), $appendix = false, $ret = false) {
$query = 'INSERT INTO';
$query .= ' `' . $this->escape($table) . "`";
if (is_array($fields)) {
$query .= ' (';
$num = 0;
foreach ($fields as $key => $value) {
$query .= ' `' . $value . '`';
$num++;
if ($num != count($fields)) {
$query .= ',';
}
}
$query .= ' ) VALUES ';
foreach ($values as $key => $value) {
$query .= '(';
foreach ($value as $key => $value) {
$query .= "'" . $value . "'" . ',';
}
$query = rtrim($query, ',');
$query .= '),';
}
$query = rtrim($query, ',');
if ($appendix) {
$query .= ' ' . $appendix;
}
if ($ret) {
return $query;
}
$this->sql = $query;
$this->result = mysqli_query($this->mysql, $query);
if (mysqli_error($this->mysql) != '') {
$this->_error(mysqli_error($this->mysql));
$this->result = null;
return false;
} else {
return $this;
}
}
}
这就是您将如何使用该功能
$values_array = array(
['videoid1' , 'chneneid1' , 'descitpin1'] ,
['videoid2' , 'chneneid3' , 'descitpin3']
);
$table_columns = array('video_id' , 'channelId' , 'description');
multiple_insert($table_name , $table_columns , $values_array );
答案 6 :(得分:-1)
<?php
$datas = ['1','2','3'];
$datas = ['1','2','3'];
foreach ($datas as $key => $data) {
$query_value[] = "('" . $data . "', '" . $datas[$key] . "')";
}
echo $value_string = implode(",", $query_value);
?>
答案 7 :(得分:-3)
在这里,我使用forech进行多行插入。.我的代码在php和mysqli中。 我的第一页是Add_timetable.php,它的视图类似于此图像。Preview of Add_timetable.php 结果预览就是这样。.Result Preview
此页面命名为Add_timetable1.php
foreach($_POST['days'] as $row=>$Days)
{include 'dbcon.php';
$s=mysqli_real_escape_string($conn,($_POST['cl']));
$n=mysqli_real_escape_string($conn,($_POST['di']));
$g=mysqli_real_escape_string($conn,($_POST['days'][$row]));
//echo $g[$i];
$a=mysqli_real_escape_string($conn,($_POST['p1'][$row]));
$b=mysqli_real_escape_string($conn,($_POST['p2'][$row]));
$c=mysqli_real_escape_string($conn,($_POST['p3'][$row]));
$d=mysqli_real_escape_string($conn,($_POST['p4'][$row]));
$e=mysqli_real_escape_string($conn,($_POST['p5'][$row]));
$ins=mysqli_query($conn,"select Timetable_Id from key_table");
while ($row=mysqli_fetch_assoc($ins))
{
$att=$row['Timetable_Id']+1;
$_SESSION['pp']=$att;
}
$ttid=$_SESSION['pp'];
$ins1=mysqli_multi_query($conn,"insert into
tbl_timetable(T_Id,Class,Division,Days,period1,period2,period3,period4,period5)
values('$ttid','$s', '$n', '$g','$a','$b','$c','$d','$e')");
$upd=mysqli_query($conn,"update Key_table set Timetable_Id ='$ttid'");
//$ins2=mysqli_query($conn,"insert into tbl_login values('$u','$pas','Staff')");
}
?>
<script>
alert("Timetable added successfully");
window.location="Add_Timetable.php";
</script>
You can try this code i am it works correctly..