PHP mysql_query() function is used to execute select query. Since PHP 5.5, mysql_query() function is deprecated. Now it is recommended to use one of the 2 alternatives.
- mysqli_query()
- PDO::__query()
There are two other MySQLi functions used in select query.
- mysqli_num_rows(mysqli_result $result): returns number of rows.
- mysqli_fetch_assoc(mysqli_result $result): returns row as an associative array. Each key of the array represents the column name of the table. It return NULL if there are no more rows.
PHP MySQLi Select Query Example
Example
snippet
0){
while($row = mysqli_fetch_assoc($retval)){
echo "EMP ID :{$row['id']}
".
"EMP NAME : {$row['name']}
".
"EMP SALARY : {$row['salary']}
".
"--------------------------------
";
} //end of while
}else{
echo "0 results";
}
mysqli_close($conn);
?>Output:
Output
Connected successfully
EMP ID :1
EMP NAME : ratan
EMP SALARY : 9000
--------------------------------
EMP ID :2
EMP NAME : karan
EMP SALARY : 40000
--------------------------------
EMP ID :3
EMP NAME : jai
EMP SALARY : 90000
--------------------------------
