


First of all, in the php.ini file, remove the semicolon in front of;extension=php_pdo_mssql.dll;extension=php_pdo_odbc.dll, which method should be used to connect to mssql. Note that you need to restart the service to make it take effect.
1. Establish connection
1. odbc
First, set up odbc on the server where the php program is located. There is a difference between 32-bit and 64-bit operating systems here. For 32-bit, just create the data source (odbc) directly from the management tool in the control panel. For 64-bit, run C:WindowsSysWOW64odbcad32.exe
Set up from here. Note: The above is only for the case where the database server is 32-bit and the data source setting server is 32-bit or 64-bit. As long as the number of data sources established by the two servers is the same.
The following is the odbc connection establishment code.
$con = odbc_connect('odbc name','username','password' );
2. Connect mssql2000
$con = mssql_connect('database address','username','password' );
3. Connect mssql2008
$connectionInfo = array("UID"=> Username,"PWD"=>Password,"Database"=>"Database name");
$con = sqlsrv_connect(Database address,$connectionInfo);
2. Enter the query code
This is the same, you can write it directly, or you can copy it from mssql after verification. To put it simply, it is to assign a SQL statement to a variable.
Similar to the following code
$query = "SELECT top 12 * database name order by id desc";
3. Create a query and retrieve the data
1. odbc
$result = odbc_do($con,$query);
while(odbc_fetch_row($result))
{
$Variable name = odbc_result($result, "field name");
}
2. Connect mssql2000
$result = mssql_query($con, $query);
while($ row =mssql_fetch_array($result))
{
$Variable name = $row["field name"];
}
3. Connect mssql2008
$result = sqlsrv_query($con, $query);
while($row = sqlsrv_fetch_array($ result))
{
$Variable name = $row["field name"];
}
The sqlsrv library is not included in php5.3 and later versions. . So download it from Microsoft.
4. Close the connection
There is no difference between this, they are odbc_close(); and mssql_close() and sqlsrv_close();
Final experience: PHP has fewer functions to connect to mssql than connecting to mssql, but it is enough. For specific functions, please refer to the official PHP manual

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

在PHP中,可以利用implode()函数的第一个参数来设置没有分隔符,该函数的第一个参数用于规定数组元素之间放置的内容,默认是空字符串,也可将第一个参数设置为空,语法为“implode(数组)”或者“implode("",数组)”。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。


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