PHP Tutorials
- What is MySqli
- mysql query
- mysql query example
- InnoDB
- mysql column Type
- CRUD Example
- Connection Using Function
- mysql keys
- SELECT
- WHERE
- UPDATE
- Count no of Rows
- ALIAS
- AND, AND & OR
- BETWEEN
- COMPARISON OPERATOR
- DELETE
- DELETE LIMIT
- DISTINCT
- EXISTS
- FROM
- GROUP BY
- HAVING
- IN
- INTERSECT
- IS NULL & IS NOT NULL
- LIKE
- NOT
- ORDER BY
- SELECT LIMIT
- SUBQUERY
- TRUNCATE
- UNION && UNION ALL
- Concat & Group_Concat
- mysql Function
- Mysql Insert Id
- MySql Aggregate Function
- Mysql Join
- JOIN in MySql
- Trigger
- Procedure
- Transaction
- views
- Index
- SQL Injection
- Normalization
- Query Bind
- Interview Questions
Important Link
Mysqli Query :-
Count No of rows.
Example :-
<?php
$sql="SELECT * FROM admin_info WHERE user_id='$myuserid' and password='$mypassword'";
$result = mysqli_query($con,$sql);
$count = mysqli_num_rows($result);
if($count==1)
{
echo "ok";
}
else
{
echo "null";
}
$sql="SELECT * FROM admin_info WHERE user_id='$myuserid' and password='$mypassword'";
$result = mysqli_query($con,$sql);
$count = mysqli_num_rows($result);
if($count==1)
{
echo "ok";
}
else
{
echo "null";
}
Count No of rows.
Example :-
<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$sql="SELECT Lastname,Age FROM Persons ORDER BY Lastname";
if ($result=mysqli_query($con,$sql))
{
// Return the number of rows in result set
$rowcount=mysqli_num_rows($result);
printf("Result set has %d rows.\n",$rowcount);
// Free result set
mysqli_free_result($result);
}
mysqli_close($con);
?>
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$sql="SELECT Lastname,Age FROM Persons ORDER BY Lastname";
if ($result=mysqli_query($con,$sql))
{
// Return the number of rows in result set
$rowcount=mysqli_num_rows($result);
printf("Result set has %d rows.\n",$rowcount);
// Free result set
mysqli_free_result($result);
}
mysqli_close($con);
?>