復制代碼 代碼如下:

$protol = 'mysql:host=localhost;dbname=test';
$username = 'monty';
$passwd = '0818';
$dbh = new PDO($protol, $username, $passwd);

復制代碼 代碼如下:

$stmt = $dbh->prepare('select * from t1 where name=:name');
$params = array();
$params['name'] = 'rentao';
foreach($params as $k=>$v){
$stmt->bindParam($k, $v);
}
$stmt->execute();
$item = array();
while($row = $stmt->fetch(PDO::FETCH_ASSOC)){
var_dump($row);
}
$stmt = null;
$dbh = null;

PHP 5.1.*PHP 5.2.*

執行正常執行正常

$params['name'] = 'rentao' 和$params[':name']='rentao'這兩個都能執行，說明不受“：”限制。

復制代碼 代碼如下:

$stmt = $dbh->prepare('select * from t1 where name=:name limit 2');
$params = array();
$params[] = 'rentao';// 這里加不加":"都能成功執行


for($i=0,$iLen = count($params); $i < $iLen; $i++){
$k = $i+1;
$stmt->bindParam($k, $params[$i]);
}
echo "HERE1/n";
$stmt->execute();
echo "HERE2/n";

$item = array();
while($row = $stmt->fetch(PDO::FETCH_ASSOC)){
var_dump($row);
}
$stmt = null;
$dbh = null;

php 5.1.*PHP 5.2.*

執行正常出現錯誤:“PHP Warning:  PDOStatement::execute(): SQLSTATE[HY093]: Invalid parameter number: parameter was not defined”

如果把":name"改成"?"，那么兩個版本都可以順利進行。

不能同時使用兩種符號。如 select * from t2 where name=? limit :page

復制代碼 代碼如下:

$stmt = $dbh->prepare('select * from t2 where name=:name limit :page');
$params = array();
$params['name'] = 'rentao';// 這里加不加":"都能成功執行
$params['page'] = 2;
foreach($params as $k=>$v){
$stmt->bindParam($k, $v);
}
$stmt->execute();
echo "HERE1/n";
$item = array();
while($row = $stmt->fetch(PDO::FETCH_ASSOC)){
var_dump($row);
}
echo "HERE2/n";
$stmt = null;
$dbh = null;

PHP 5.1.*PHP 5.2.*

執行到$stmt->execute()時，進程一直處于等待狀態中執行正常:打印不出結果

復制代碼 代碼如下:

$stmt = $dbh->prepare('select * from t2 where name=? limit ?');
$params = array();
$params[] = 'rentao';
$params[] = 2;
for($i=0,$iLen = count($params); $i < $iLen; $i++){
$k = $i+1;
$stmt->bindParam($k, $params[$i]);
}
$stmt->execute();
$item = array();
while($row = $stmt->fetch(PDO::FETCH_ASSOC)){
var_dump($row);
}
$stmt = null;
$dbh = null;

PHP 5.1.*PHP 5.2.*

執行正常執行正常:打印不出結果

PHP 5.1.*PHP 5.2.*

打印出結果，但未按order by進行排序執行正常:打印不出結果

復制代碼 代碼如下:

scp -P9888 index.php rentao@192.168.10.4:/home/rentao