Retrieving a database record set into an array in php

Question

I want to retrieve a set of records from a MySQL table as an array.

So far I was able to retrieve each row as an associative array. But I want all the rows in one ar

Answer 1

Put it all in one array, then json_encode it:

$json = array( );
$result = mysql_query("SELECT * FROM student",$con) or die (mysql_error());
while( $row = mysql_fetch_assoc( $result ) ) {
    $json[] = $row;
}
echo json_encode( $json );

FYI: there's no need to count the number of results to loop. mysql_fetch_* will internally keep a pointer to the current record and increment that on each call. That makes it a perfect candidate to use in a simple while loop. Also, instead of mysql_fetch_array and passing MYSQL_ASSOC, you can simply use mysql_fetch_assoc instead, a method I much prefer. Makes the code easier to read too (in my opinion, anyway).