达到 PHP 和 SQL 的限制后停止插入
Stop inserting after reach the limit in PHP and SQL
我有table本命名的书,这个table会存储每本书的数据。每本书只有 5 页,每一页都有属于同一本书的不同详细信息。书名存储在名为“jalad”的列中,页面存储在名为“sanad”的列中
我想要 PHP 允许我在完全完成第一本有五页的书的插入后插入一本新书,如果我输入的书少于 5 页,那么将阻止我插入新书在完成第一个之前预订。任何想法,请。我使用了这段代码,但效果不佳。请任何帮助。
table here :
代码:
<?php
// connect to the database
// $serverName = "SALARY_SERVER\SALARY_SERVER";
//$database = "roatb";
$serverName = "LENOVO";
$database = "tt";
$connectionInfo = array( "Database"=>$database );
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if( $conn )
{
echo "Connection established.\n";
}
else
{
echo "Connection could not be established.\n";
die( print_r( sqlsrv_errors(), true));
}
$jalad1 = $_POST['jalad'];
$sanad2 = $_POST['sanad'];
$sql = "SELECT count(Sanad) as countnumber FROM books where Jalad='$jalad1' ";
$stmt = sqlsrv_query( $conn, $sql );
while($row = sqlsrv_fetch_array( $stmt, SQLSRV_FETCH_ASSOC)) {
$rowc= $row['countnumber'];
echo $rowc;
if ($rowc <=5) {
$sql = "INSERT INTO books (Jalad,Sanad)
VALUES ('$jalad1','$sanad2' )";
// echo $sql;
if (sqlsrv_query($conn, $sql)) {
echo "your data saved";
}
else {echo "error";}
}
else {
echo"you have to complete the page of the current book";
}
}
?>
您需要 select 'jalad' 最后上传的图书。您可以随心所欲地执行此操作,但假设您将列值存储在名为 $jalad_last
的变量中
你只需要这样写你的 if 语句
if ($rowc == 0 || $rowc < 5 && $jalad1 == $jalad_last) {
YOUR INSERT CODE HERE
} elseif ($rowc == 5) {
echo 'this book is already completed';
} else {
echo 'you have to complete...';
}
我有table本命名的书,这个table会存储每本书的数据。每本书只有 5 页,每一页都有属于同一本书的不同详细信息。书名存储在名为“jalad”的列中,页面存储在名为“sanad”的列中
我想要 PHP 允许我在完全完成第一本有五页的书的插入后插入一本新书,如果我输入的书少于 5 页,那么将阻止我插入新书在完成第一个之前预订。任何想法,请。我使用了这段代码,但效果不佳。请任何帮助。
table here :
代码:
<?php
// connect to the database
// $serverName = "SALARY_SERVER\SALARY_SERVER";
//$database = "roatb";
$serverName = "LENOVO";
$database = "tt";
$connectionInfo = array( "Database"=>$database );
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if( $conn )
{
echo "Connection established.\n";
}
else
{
echo "Connection could not be established.\n";
die( print_r( sqlsrv_errors(), true));
}
$jalad1 = $_POST['jalad'];
$sanad2 = $_POST['sanad'];
$sql = "SELECT count(Sanad) as countnumber FROM books where Jalad='$jalad1' ";
$stmt = sqlsrv_query( $conn, $sql );
while($row = sqlsrv_fetch_array( $stmt, SQLSRV_FETCH_ASSOC)) {
$rowc= $row['countnumber'];
echo $rowc;
if ($rowc <=5) {
$sql = "INSERT INTO books (Jalad,Sanad)
VALUES ('$jalad1','$sanad2' )";
// echo $sql;
if (sqlsrv_query($conn, $sql)) {
echo "your data saved";
}
else {echo "error";}
}
else {
echo"you have to complete the page of the current book";
}
}
?>
您需要 select 'jalad' 最后上传的图书。您可以随心所欲地执行此操作,但假设您将列值存储在名为 $jalad_last
的变量中你只需要这样写你的 if 语句
if ($rowc == 0 || $rowc < 5 && $jalad1 == $jalad_last) {
YOUR INSERT CODE HERE
} elseif ($rowc == 5) {
echo 'this book is already completed';
} else {
echo 'you have to complete...';
}