pdo.php

<?php
	
	// connect
	$connect_start = microtime(true);
	try {
		$pdo = new PDO('sqlite:test.db');
	}
	catch ( PDOException $e ) {
		die('Unable to connect: ' . $e->getMessage());
	}
	$connect_stop = microtime(true);
	
	// create the test table
	$sql = file_get_contents( 'test.sql' );
	$create_start = microtime(true);
	try {
		$pdo->exec( $sql );
	}
	catch ( PDOException $e ) {
		die('Unable to create table: ' . $e->getMessage());
	}
	$create_stop = microtime(true);
	
	// insert 10,000 records
	$insert_start = microtime(true);
	try {
		$insert = $pdo->prepare( 'insert into test ( value ) values ( :test )' );
	}
	catch ( PDOException $e ) {
		die('Unable to prepare insert statement: ' . $e->getMessage());
	}
	
	for ( $i = 0; $i < 10000; $i++ ) {
		
		try {
			$insert->execute( array( ':test' => $i ) );
		}
		catch ( PDOException $e ) {
			die('Unable to insert value: ' . $e->getMessage());
		}
		
	}
	$insert_stop = microtime(true);
	
	
	// now select back each of the 10000 records sequentially
	$select_start = microtime(true);
	try {
		$select = $pdo->prepare( 'select value from test' );
	}
	catch ( PDOException $e ) {
		die('Unable to prepare select statement: ' . $e->getMessage());
	}
	
	// execute it
	try {
		$select->execute();
	}
	catch ( PDOException $e ) {
		die('Unable to execute select statement: ' . $e->getMessage());
	}
	
	while ( $row = $select->fetch() ) {
		// nothing
	}
	$select_stop = microtime(true);
	
	// delete the db
	unlink( 'test.db' );

?>

results.txt

Testing PDO
Testing SQLite
connect: PDO is faster by 0.01814603805542 seconds
create: PDO is slower by 0.0010099411010742 seconds
insert: PDO is slower by 17.156681060791 seconds
select: PDO is slower by 0.0061521530151367 seconds

run.php

<?php

	error_reporting(-1);
	
	echo 'Testing PDO' . "\n";
	include( 'pdo.php' );
	
	$pdo = array();
	$pdo['connect'] = $connect_stop - $connect_start;
	$pdo['create'] = $create_stop - $create_start;
	$pdo['insert'] = $insert_stop - $insert_start;
	$pdo['select'] = $select_stop - $select_start;
	
	echo 'Testing SQLite' . "\n";
	include( 'sqlite.php' );
	
	$sqlite = array();
	$sqlite['connect'] = $connect_stop - $connect_start;
	$sqlite['create'] = $create_stop - $create_start;
	$sqlite['insert'] = $insert_stop - $insert_start;
	$sqlite['select'] = $select_stop - $select_start;
	
	foreach ( array_keys( $pdo ) as $key ) {
		
		$diff = $pdo[ $key ] - $sqlite[ $key ];
		
		echo $key . ': ';
		
		if ( $diff < 0 ) {
			echo 'PDO is faster by ' . abs( $diff ) . ' seconds';
		}
		else if ( $diff > 0 ) {
			echo 'PDO is slower by ' . $diff . ' seconds';
		}
		else {
			echo 'PDO is equal';
		}
		
		echo "\n";
		
	}

?>

sqlite.php

<?php
	
	// connect
	$connect_start = microtime(true);
	$db = new SQLIteDatabase( 'test.db', null, $error );
	if ( $db === false ) {
		die('Unable to connect: ' . $error);
	}
	$connect_stop = microtime(true);
	
	// create the test table
	$sql = file_get_contents( 'test.sql' );
	$create_start = microtime(true);
	$r = $db->queryExec( $sql );
	
	if ( $r === false ) {
		die('Unable to create table: ' . sqlite_error_string( $db->lastError() ) );
	}
	$create_stop = microtime(true);
	
	// insert 10,000 records
	$insert_start = microtime(true);
	
	for ( $i = 0; $i < 10000; $i++ ) {
		
		$query = 'insert into test ( value ) values ( ' . sqlite_escape_string( $i ) . ' )';
		
		$r = $db->query( $query, SQLITE_BOTH, $error );
		
		if ( $r === false ) {
			die('Unable to insert value: ' . $error );
		}
		
	}
	$insert_stop = microtime(true);
	
	
	// now select back each of the 10000 records sequentially
	$select_start = microtime(true);
	$select = $db->unbufferedQuery( 'select value from test', SQLITE_BOTH, $error );
	
	if ( $select === false ) {
		die('Unable to execute select statement: ' . $error);
	}
	
	while ( $row = $select->fetch() ) {
		// nothing
	}
	$select_stop = microtime(true);
	
	// delete the db
	unlink( 'test.db' );

?>

test.sql

CREATE TABLE "test" (
	 "id" integer NOT NULL,
	 "value" text NOT NULL,
	PRIMARY KEY("id")
)

For reference, removing the try/catch around the insert for PDO reduced the difference to about 12 seconds.