function test_convertToBase()
{
$check_str = "12345678900987654321";
$base_16_chars = '0123456789abcdef';
$base_62_chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$result = FOX_math::convertToBase($check_str, $base_16_chars);
$this->assertEquals($result, "ab54a98cdc6770b1");
$result = FOX_math::convertToBase($check_str, $base_62_chars);
$this->assertEquals($result, "eHZl6hFR4k1");
}
/**
* Writes a multiple raw strings to the store
*
* @version 1.0
* @since 1.0
*
* @param mixed $value | single value
* @return bool | Exception on failure. Array of prefixed hash keys on success.
*/
public function setMulti($data)
{
$result = array();
foreach ($data as $value) {
// Values MUST be serialized to prevent (int)0, (bool)false, and
// NULL from all mapping to the same key
$s_value = serialize($value);
// Converting from base_16 to base_62 format reduces the key length
// by almost 50%, saving memory
$hash_16 = md5($s_value);
$hash_10 = FOX_math::convertFromBase($hash_16, $this->base_16_chars);
$hash_62 = FOX_math::convertToBase($hash_10, $this->base_62_chars);
// We add $this-prefix to each key to guarantee the key is still
// a string in the event we get something like "0000000000000005"
// back from convertToBase(). If we passed the value straight
// through, PHP would set the 6th key in the array instead of the
// named key "0000000000000005".
$prefixed = $this->prefix . $hash_62;
$this->store[$prefixed] = $s_value;
$result[] = $prefixed;
}
unset($value);
// We can't return as an array of $value => $hash because
// its entirely possible we'll get things like "foo text string"
// which isn't a valid associative array key
return $result;
}