php hash tables

mikedos

Is there an easy way to make a php hash table. The docs on the php.net page are not real helpful on this subject. I want to sort objects based on certain criteria and store them in a hash table. Any help would be greatly appreciated.

Mike

daarius

an excellent article on arrays.

http://www.devshed.com/Server_Side/PHP/ArrayManip/page1.html

may be this will help you.

ronnieb

Hi!

If you are using strings as keys, you can do the following.

// Create an array
$aTable = array();

// Use associative array to map key => value
$aTable[ "key1" ] = "Value1";
$aTable[ "key2" ] = "Value2";
$aTable[ "key3" ] = "Value3";

// Try to get som values
$sValue = $aTable[ "key2" ];
echo( $sValue );

// The following syntax also acceptable
$aTable = array
(
"key1" => "value1",
"key2" => "value2",
"key3" => "value3"
);

// Try to get som values
$sValue = $aTable[ "key2" ];
echo( $sValue );

// If you get the keys from a database you
// would do something like this:

// Fetch the data from database...
$sQuery "select key,value from table";
$hResult = mysql_query($sQuery);

// For each row:
// 1. Extract key value pair
// 2. Insert into our array
while( list($sKey, $sValue) = mysql_fetch_array($hResult) )
$aTable[ $sKey ] = $sValue;