(PHP 5)
mysqli_stmt::send_long_data -- mysqli_stmt_send_long_data — Send data in blocks
面向对象风格
$param_nr
, string $data
)过程化风格
Allows to send parameter data to the server in pieces (or chunks), e.g. if the size of a blob exceeds the size of max_allowed_packet. This function can be called multiple times to send the parts of a character or binary data value for a column, which must be one of the TEXT or BLOB datatypes.
stmt仅以过程化样式：由 mysqli_stmt_init() 返回的 statement 标识。
param_nr
Indicates which parameter to associate the data with. Parameters are numbered beginning with 0.
data
A string containing data to be sent.
成功时返回 TRUE， 或者在失败时返回 FALSE。
Example #1 面向对象风格
<?php
$stmt = $mysqli->prepare("INSERT INTO messages (message) VALUES (?)");
$null = NULL;
$stmt->bind_param("b", $null);
$fp = fopen("messages.txt", "r");
while (!feof($fp)) {
$stmt->send_long_data(0, fread($fp, 8192));
}
fclose($fp);
$stmt->execute();
?>
Gustavo Narea (2006-05-16 19:00:41)
Just in case:
'max_allowed_packet' is a MySQL variable; it is not a PHP function/variable/constant.
Further info: http://dev.mysql.com/doc/refman/4.1/en/packet-too-large.html
HTH.
lussnig at smcc dot de (2005-10-26 07:31:41)
send_long_data() these function is normaly used to store Data in Binary blob field. But if the table is UTF8 and connection charset it does not expect binary data (for example images) it take utf8 Data.
This mean you have to do utf8_encode bevore sending binary data.