stephen-hill · May 3, 2013 10:52 · May 3, 2013
diff --git a/pdo-fetch-benchmark.php b/pdo-fetch-benchmark.php
@@ -0,0 +1,70 @@
+<?php
+
+set_time_limit(0);
+
+// List of fetch styles to test
+$fetchStyles = array(
+	'Assoc' => PDO::FETCH_ASSOC,
+	'Both' => PDO::FETCH_BOTH,
+	'Lazy' => PDO::FETCH_LAZY,
+	'Num' => PDO::FETCH_NUM,
+	'Obj' => PDO::FETCH_OBJ
+);
+
+// PDO connection
+$pdo = new PDO
+(
+	'mysql:dbname=mysql;host=localhost',
+	'benchmark', // Username
+	'benchmark', // Password
+	array(
+		PDO::ATTR_CASE => PDO::CASE_LOWER,
+		PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+		PDO::ATTR_ORACLE_NULLS => PDO::NULL_NATURAL,
+		PDO::ATTR_PERSISTENT => true
+	)
+);
+
+// The results array
+$result = array();
+
+// Loop each style
+foreach($fetchStyles as $key => $style)
+{
+	// Total time for each style
+	$total = 0.0;
+
+	for ($i = 0; $i < 100; $i++)
+	{
+		// Record the start time
+		$start = microtime(true);
+
+		// Execute
+		$statement = $pdo->prepare('SELECT * FROM help_topic');
+		$statement->execute();
+		$mixed = $statement->fetch($style);
+
+		// Record the end time
+		$stop = microtime(true);
+
+		// Convert Start and Stop to Miliseconds
+		$start = $start * 1000.0;
+		$stop = $stop * 1000.0;
+
+		// Calculate the time taken
+		$diff = ($stop - $start);
+
+		// Add the difference to the total
+		$total = $total + $diff;
+	}
+
+	// Store the result
+	$result[$key] = $total;
+}
+
+// Sort the results
+asort($result, SORT_NUMERIC);
+
+// Output the result
+// Time taken is in Milliseconds
+var_dump($result);