Mysql PHP Select

Mysql PHP is used to execute the select statement using mysql_query ( ) function.


 
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Mysql PHP Select

     

Mysql PHP is used to execute the select statement using mysql_query ( ) function. The function send a query or command to a MySQL connection.

Understand with Example

The Tutorial illustrate an example from 'Mysql PHP Select'. To understand and elaborate example we create a table 'MyTable' that has the required fieldnames and datatypes respectively.

Query for creating table named MyTable :

The Query insert into is used to add the records or rows to the table 'MyTable'. 

mysql> CREATE TABLE MyTable (
    ->              Empid int(10),
    ->              Empname varchar(60)
    ->              Salary int(90)
    ->            );
Query OK, 0 rows affected (0.13 sec)

Query for inserting data in table:

The Query insert into is used to add the records or rows to the table 'MyTable'.

mysql>   insert into MyTable values(01,'Girish','20000');
Query OK, 1 row affected (0.02 sec)

mysql>     insert into MyTable values(02,'A','21000');
Query OK, 1 row affected (0.01 sec)

mysql>     insert into MyTable values(03,'C','22000');
Query OK, 1 row affected (0.00 sec)

mysql>     insert into MyTable values(04,'V','23000');
Query OK, 1 row affected (0.00 sec)

mysql>     insert into MyTable values(05,'B','24000');
Query OK, 1 row affected (0.00 sec)

mysql>     insert into MyTable values(06,'E','25000');
Query OK, 1 row affected (0.00 sec)

mysql>     insert into MyTable values(07,'Q','26000');
Query OK, 1 row affected (0.01 sec)

mysql>     insert into MyTable values(08,'W','27000');
Query OK, 1 row affected (0.01 sec)

mysql>     insert into MyTable values(09,'AS','28000');
Query OK, 1 row affected (0.00 sec)`


Query to view data inserted in table:

mysql> select * from mytable;
+-------+---------+--------+
| Empid | Empname | Salary |
+-------+---------+--------+
| 1     | Girish  | 20000  |
| 2     | A       | 21000  |
| 3     | C       | 22000  |
| 4     | V       | 23000  |
| 5     | B       | 24000  |
| 6     | E       | 25000  |
| 7     | Q       | 26000  |
| 8     | W       | 27000  |
| 9     | AS      | 28000  |
+-------+---------+--------+
9 rows in set (0.01 sec)

Viewing table data using php select:

To view the table data using php,  you need to connect with database to access the records. The mysql _connect function ( ) is used to connect the database. As your connection is built, you can retrieve the records from table 'mytable' using select query. Now we make use of mysql_fetch_array ( ) function to return the first row from the recordset of an array. Each call make to mysql_fetch_array ( ) returns you the next rows in the recordset. The While loop iterate through all the records in a data. The PHP $ROW variable is used to print the value of each row from a table.

<?php
$database="girish";
$user="root";
$password="root";
$host="192.168.10.126";

$link= mysql_connect($host,$user,$password) or die("Could not connect: ".mysql_error());
mysql_select_db($database,$link) or die("Error in selecting the database:".mysql_error());
$sql="Select * from mytable";
$sql_result=mysql_query($sql,$link) or exit("Sql Error".mysql_error());
$sql_num=mysql_num_rows($sql_result);
echo "<table border=\"1\" bgcolor=\"#CCCCFF\" >";
echo "<tr><td><b>Empid</b></td><td><b>Empname</b></td><td><b>Salary</b></td>" ;
while($sql_row=mysql_fetch_array($sql_result))
{
$Empid=$sql_row["Empid"];
$Empname=$sql_row["Empname"];
$Salary=$sql_row["Salary"];
echo "<tr>";
echo "<td>".$Empid."</td>";
echo "<td>".$Empname."</td>";
echo "<td>".$Salary."</td>";
echo "</tr>";
} 
echo "</table>";
?>


Output:-

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Mysql PHP Select

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