Passing geometry from client to DB

hoods9.php

<?php
$username = //[user];
$password = //[wouldntyouliketoknow];
$hostname = "localhost";	
$database = "geosproc_btvwards";

$dbh=mysql_connect($hostname, $username, $password) or die ('I cannot connect to the database because: ' . mysql_error());
mysql_select_db ($database);

// OBQtypeQ:QFeatureQCOQgeometryQ:OBQtypeQ is my dumb version of {"type":"Feature","geometry":{"type"
// i.e., what the json string should start with
if ( strpos( $_POST['hoods'], 'OBQtypeQ:QFeatureQCOQgeometryQ:OBQtypeQ' ) == 0 ){
	$data = mysql_query("INSERT INTO hoods9 (json) VALUES ('".$_POST['hoods']."')");
}
if (!$data) {
	echo "Error";
} else {
	echo "Sweet";
}
?>