php教程小型数据库教程(不用mysql教程做网站)

include 'pdbm.php';

$timestart = explode(' ', microtime());

$timestart = $timestart[0] + $timestart[1];

$pdbm = new pdbm('test');

$pdbm->open(pdbm_creat | pdbm_rewd);

for ($i = 0; $i < 100000; $i++) {

$pdbm->insert("key{$i}", "value{$i}");

}

$timetime = explode(' ', microtime());

$timetime = $timetime[0] + $timetime[1];

echo $timetime - $timestart;

//*/

读取数据方法

include 'pdbm.php';

$timestart = explode(' ', microtime());

$timestart = $timestart[0] + $timestart[1];

$pdbm = new pdbm('test');

$pdbm->open(pdbm_rewd);

$val = $pdbm->fetch('key9999');

if ($val == null) {

echo 'not found';

} else {

echo $val."

}

//$pdbm->delete('key100'); //delete data

$val = $pdbm->fetch('key100');

if ($val == null) {

echo 'not found';

} else {

echo $val."

}

$timetime = explode(' ', microtime());

$timetime = $timetime[0] + $timetime[1];

echo $timetime - $timestart;

//*/