IIS Web Server

PHP Tutorials

Connect, Execute a Query, Print Resulting Rows and Disconnect from a MySQL Database.

 

Example 1

<html>

<body>

<?php

$db = mysql_connect("localhost", "root");//localhost and root are default values for IIS

mysql_select_db("mydb",$db);// mydb or the database you created

$result = mysql_query("SELECT * FROM employees",$db);

echo "<table border=1>\n";

echo "<tr><td>Name</td><td>Position</tr>\n";

while ($myrow = mysql_fetch_row($result)) { // fetches a row from the table in an array

printf("<tr><td>%s %s</td><td>%s</td></tr>\n", $myrow[1], $myrow[2], $myrow[3]);
// Prints one row at a time
// Each %s corresponds to each $myrow[number] respectively in printf()

}

echo "</table>\n";

?>

</body>

</html>

Example 2

<?php
/*Connecting, selecting database - the host can be localhost for wwwroot on IIS or determined by your ISP or yourself*/
$link = mysql_connect('mysql_host', 'mysql_user', 'mysql_password');
mysql_select_db('my_database');

// Performing SQL query
$query = 'SELECT * FROM my_table'; //Select all the rows from the my_table
$result = mysql_query($query);

// Printing results in HTML
echo "<table>\n";// echo simply 'prints text to the browser'
while ($line = mysql_fetch_array($result, MYSQL_ASSOC)) {

// similar to mysql_fetch_row above. See below for explaination of MYSQL_ASSOC

echo "\t<tr>\n";
foreach ($line as $col_value) {
// retreives as $col_value each entry in array $line
echo "\t\t<td>$col_value</td>\n";
}
echo "\t</tr>\n";
}
echo "</table>\n";

// Free resultset
mysql_free_result($result);

// Closing connection
mysql_close($link);
?>

mysql_fetch_array( result, result_type)

mysql_fetch_array -- Fetch a result row as an associative array, a numeric array, or both.

Parameters

result

The result resource that is being evaluated. This result comes from a call to mysql_query().

result_type

The type of array that is to be fetched. It's a constant and can take the following values: MYSQL_ASSOC, MYSQL_NUM, and the default value of MYSQL_BOTH.

Return Values

Returns an array that corresponds to the fetched row, or FALSE if there are no more rows. The type of returned array depends on how result_type is defined. By using MYSQL_BOTH (default), you'll get an array with both associative and number indices. Using MYSQL_ASSOC, you only get associative indices (as mysql_fetch_assoc() works), using MYSQL_NUM, you only get number indices (as mysql_fetch_row() works).

 

More examples:

 

mysql_fetch_array() with MYSQL_NUM

<?php
mysql_connect
("localhost", "mysql_user", "mysql_password") or
   die(
"Could not connect: " . mysql_error());
mysql_select_db("mydb");

$result = mysql_query("SELECT id, name FROM mytable");

while (
$row = mysql_fetch_array($result, MYSQL_NUM)) {
  
printf("ID: %s  Name: %s", $row[0], $row[1]); 
}

mysql_free_result($result);
?>

Example 3. mysql_fetch_array() with MYSQL_ASSOC

<?php
mysql_connect
("localhost", "mysql_user", "mysql_password") or
   die(
"Could not connect: " . mysql_error());
mysql_select_db("mydb");

$result = mysql_query("SELECT id, name FROM mytable");

while (
$row = mysql_fetch_array($result, MYSQL_ASSOC)) {
  
printf("ID: %s  Name: %s", $row["id"], $row["name"]);
}

mysql_free_result($result);
?>

Example 4. mysql_fetch_array() with MYSQL_BOTH

<?php
mysql_connect
("localhost", "mysql_user", "mysql_password") or
   die(
"Could not connect: " . mysql_error());
mysql_select_db("mydb");

$result = mysql_query("SELECT id, name FROM mytable");

while (
$row = mysql_fetch_array($result, MYSQL_BOTH)) {
  
printf ("ID: %s  Name: %s", $row[0], $row["name"]);
}

mysql_free_result($result);
?>

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