Mysql Where Clause Query In Php
PHP MySQL The Where Clause :
To select only data that matches a specified criteria, add a WHERE clause to the SELECT statement.
To select only data that matches a specific criteria, add a WHERE clause to the SELECT statement.
Syntax
//Syntax
SELECT column FROM table
WHERE column operator value
The following operators can be used with the WHERE clause:
Operator |
Description |
= |
Equal |
!= |
Not equal |
> |
Greater than |
< |
Less than |
>= |
Greater than or equal |
<= |
Less than or equal |
BETWEEN |
Between an inclusive range |
LIKE |
Search for a pattern |
Note: SQL statements are not case sensitive. WHERE is the same as where.
To get PHP to execute the statement above we must use the mysql_query() function. This function is used to send a query or command to a MySQL connection.
Example The following example will select all rows from the "Person" table, where FirstName='Peter':
CODE/PROGRAM/EXAMPLE
<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die("Could not connect: " . mysql_error());
}
mysql_select_db("my_db", $con);
$result = mysql_query("SELECT * FROM person
WHERE FirstName="Peter"");
while($row = mysql_fetch_array($result))
{
echo $row["FirstName"] . " " . $row["LastName"];
echo "<br />";
}
?>
//O/P : Peter Griffin