change mysqli check exit and insert into pdo statement - mysqli

Question

i want to change my mysqli check exist and insert into pdo.. my statement look like below:
<?php
$addSearch = preg_replace('/[^a-zA-Z0-9_ %\[\]\.\(\)%&-]/s', '', $search);
if ($CheckMusic = $mysqli->query("SELECT * FROM search WHERE term='$addSearch'")) {
$CheckRow = mysqli_fetch_array($CheckMusic);
$CheckId = $CheckRow['id'];
$CheckCnt = $CheckMusic->num_rows;
$CheckMusic->close();
} else {
printf("Error: %s\n", $mysqli->error);
}
$Now = strtotime("now");
$addSearch = $mysqli->escape_string($addSearch);
if ($CheckCnt < 1) {
$mysqli->query("INSERT INTO search (term, datetime) VALUES('$addSearch','$Now') ") or die(mysqli_error());
} else {
$mysqli->query("UPDATE search SET datetime='$Now' WHERE id='$CheckId'") or die(mysqli_error());
}
?>
hope someone can help with sample if can ;q thanks for your advance!

Answer 1

<?php
$addSearch = preg_replace('/[^a-zA-Z0-9_ %\[\]\.\(\)%&-]/s', '', $search);
$CheckMusic = $mysqli->query("SELECT * FROM search WHERE term='$addSearch'");
$Now = strtotime("now");
if($CheckMusic->num_rows == 0){
$mysqli->query("INSERT INTO search (term, datetime) VALUES('$addSearch','$Now') ") or die(mysqli_error());
}else{
$CheckRow = mysqli_fetch_array($CheckMusic);
$CheckId = $CheckRow['id'];
$addSearch = $mysqli->escape_string($addSearch);
$mysqli->query("UPDATE search SET datetime='$Now' WHERE id='$CheckId'") or die(mysqli_error());
}
I hope it will work.