PHP生成动态PDO插入

下面的代码应该将数组中的每个键值对插入到表中的匹配列值中。脚本不返回任何错误，但插入的行仅包含数组中的最后一个值

例如

在列为1、2和3的表中成功插入行，但在所有列中插入值3

    $columns = array();
    $bind = '';
    foreach($array as $key => $value){

        $columns[] = $key;

    }

    $columnString = implode($columns,',');
    $valueString = implode($columns,',:');
    $valueString = ':' . $valueString;

    $core = core::getInstance();
    $STH = $core->dbh->prepare("INSERT INTO table (" . $columnString . ") VALUES 
    (" . $valueString . ")");

    foreach($array as $key => $value){

        $STH->bindParam(':' . $key,$value);
    }

---

试试看

可能是这样的：

$columns = array('one'=>1,'two'=>2,'three'=>3);

$columnString = implode(',', array_flip($columns));
$valueString = ":".implode(',:', array_flip($columns));

$core = core::getInstance();
$STH = $core->dbh->prepare("INSERT INTO table (" . $columnString . ") VALUES (" . $valueString . ")");

foreach($columns as $key => $value){
    $STH->bindValue(':' . $key, $value);
}

---

忘记

bindParam

，只需使用

execute

并将

$array

的值传递给它：

$STH->execute($array);

或者，您可以将命名参数全部划掉，以稍微简化代码：

$columnString = implode(',', array_keys($array));
$valueString = implode(',', array_fill(0, count($array), '?'));

$STH = $core->dbh->prepare("INSERT INTO table ({$columnString}) VALUES ({$valueString})");
$STH->execute(array_values($array));

---

@如果您想使用位置占位符实现您的目标，netcoder的回答也很好。但是，您可以使用sprintf函数使用命名占位符准备动态sql查询

$sql = sprintf("INSERT INTO table (%s) VALUES(%s)",
              implode(", ", array_keys($array)),
              ":" . implode(", :", array_keys($array)));

$pdo->prepare($sql);
$pdo->execute($array);

---

pdoStatement:：bindParam

将对变量的引用作为其参数，

pdoStatement:：bindValue

将变量的值作为其参数。按照这样做的方式，您对同一变量

$value

进行了多次引用，当然所有变量的计算结果都是相同的。

$columnString = implode(',', array_keys($array));
$valueString = implode(',', array_fill(0, count($array), '?'));

$STH = $core->dbh->prepare("INSERT INTO table ({$columnString}) VALUES ({$valueString})");
$STH->execute(array_values($array));

$conn = new PDO('mysql:host=' . $HOST . ';dbname=' . $DATABASE, $USERNAME, $PASSWORD);
$conn->exec("set names utf8");
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING);

$ins_query = 'INSERT INTO `' . $table_name . '` ';

$columns = array();
$columns_bindings = array();
foreach ($dataArray as $column_name => $data) {
    $columns[] = $column_name;
    $columns_bindings[] = ':' . $column_name;
}

$ins_query = $ins_query . '(' . implode(', ', $columns) . ') VALUES (' . implode(', ', $columns_bindings) . ')';

$stmt = $conn->prepare($ins_query);

foreach ($dataArray as $column_name => $data) {
    $stmt->bindValue(":" . $column_name, $data);
}
if (!$stmt->execute()) {
    print_r($stmt->errorInfo());

} else {
    echo "Insertd";
}

$sql = sprintf("INSERT INTO table (%s) VALUES(%s)",
              implode(", ", array_keys($array)),
              ":" . implode(", :", array_keys($array)));

$pdo->prepare($sql);
$pdo->execute($array);