php mysql insert数组_PHP – MySQL编写的INSERT数组语句
不……由于mysqli_stmt_bind_param()的工作方式,這絕對比任何陣列的PDO更難……這可以通過更改$array來刪除/添加其他列的數據來正常工作.
$mysqli = new mysqli('localhost', 'root', 'password', 'test');
$array = array("name"=>"pineapple", "color"=>"purple");
$table_name = "fruit";
insert_data($mysqli, $array, $table_name);
function insert_data($mysqli, $array, $table_name)
{
$placeholders = array_fill(0, count($array), '?');
$keys = array();
$values = array();
foreach($array as $k => $v) {
$keys[] = $k;
$values[] = !empty($v) ? $v : null;
}
$query = "insert into $table_name ".
'('.implode(', ', $keys).') values '.
'('.implode(', ', $placeholders).'); ';
// insert into fruit (name, color) values (?, ?);
$stmt = $mysqli->prepare($query);
// create a by reference array...
$params = array();
foreach ($array as &$value) {
$params[] = &$value;
}
$types = array(str_repeat('s', count($params)));
$values = array_merge($types, $params);
/*
$values = Array
(
[0] => ss
[1] => pineapple
[2] => purple
)
*/
call_user_func_array(array($stmt, 'bind_param'), $values);
$success = $stmt->execute();
if ($success) { print "it worked..."; }
else { print "it did not work..."; }
}
所以……在$stmt-> bind_param()中,第一個參數是一個字符串,每個傳入的參數都有一個char.而char表示參數數據類型.在上面的示例中,兩個參數都是字符串,因此它變為ss.上面的示例中也總是假設一個字符串.
我在bind_param()文檔中找到了這個圖表:
類型
包含一個或多個字符的字符串,用于指定相應綁定變量的類型:
Type specification chars
Character Description
i corresponding variable has type integer
d corresponding variable has type double
s corresponding variable has type string
b corresponding variable is a blob and will be sent in packets
總結
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