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(PHP 5, PHP 7, PHP 8)
mysqli_stmt::send_long_data -- mysqli_stmt_send_long_data — Send data in blocks
面向对象风格
$param_num, string $data): bool
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.
statement
仅以过程化样式：由 mysqli_stmt_init() 返回的 mysqli_stmt 对象。
param_num
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。
示例 #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();
?>
