mysqli::set_local_infile_defaultmysqli::set_local_infile_handler
mysqli_set_local_infile_handler
(PHP 5)
mysqli::set_local_infile_handler -- mysqli_set_local_infile_handler — Set callback function for LOAD DATA LOCAL INFILE command
Açıklama
Nesne yönelimli kullanım
Yordamsal kullanım
Set callback function for LOAD DATA LOCAL INFILE command
The callbacks task is to read input from the file specified in the LOAD DATA LOCAL INFILE and to reformat it into the format understood by LOAD DATA INFILE.
The returned data needs to match the format specified in the LOAD DATA
Değiştirgeler
-
bağlantı -
Sadece yordamsal tarz: mysqli_connect() veya mysqli_init() işlevinden dönen bir bağlantı tanıtıcısı.
-
read_func -
A callback function or object method taking the following parameters:
-
stream -
A PHP stream associated with the SQL commands INFILE
-
&buffer -
A string buffer to store the rewritten input into
-
buflen -
The maximum number of characters to be stored in the buffer
-
&errormsg -
If an error occurs you can store an error message in here
-
The callback function should return the number of characters stored
in the buffer or a negative value if an error
occurred.
Dönen Değerler
Başarı durumunda TRUE, başarısızlık durumunda FALSE döner.
Örnekler
Örnek 1 mysqli::set_local_infile_handler() example
Nesne yönelimli kullanım
<?php
$db = mysqli_init();
$db->real_connect("localhost","root","","test");
function callme($stream, &$buffer, $buflen, &$errmsg)
{
$buffer = fgets($stream);
echo $buffer;
// convert to upper case and replace "," delimiter with [TAB]
$buffer = strtoupper(str_replace(",", "\t", $buffer));
return strlen($buffer);
}
echo "Input:\n";
$db->set_local_infile_handler("callme");
$db->query("LOAD DATA LOCAL INFILE 'input.txt' INTO TABLE t1");
$db->set_local_infile_default();
$res = $db->query("SELECT * FROM t1");
echo "\nResult:\n";
while ($row = $res->fetch_assoc()) {
echo join(",", $row)."\n";
}
?>
Yordamsal kullanım
<?php
$db = mysqli_init();
mysqli_real_connect($db, "localhost","root","","test");
function callme($stream, &$buffer, $buflen, &$errmsg)
{
$buffer = fgets($stream);
echo $buffer;
// convert to upper case and replace "," delimiter with [TAB]
$buffer = strtoupper(str_replace(",", "\t", $buffer));
return strlen($buffer);
}
echo "Input:\n";
mysqli_set_local_infile_handler($db, "callme");
mysqli_query($db, "LOAD DATA LOCAL INFILE 'input.txt' INTO TABLE t1");
mysqli_set_local_infile_default($db);
$res = mysqli_query($db, "SELECT * FROM t1");
echo "\nResult:\n";
while ($row = mysqli_fetch_assoc($res)) {
echo join(",", $row)."\n";
}
?>
Yukarıdaki örneklerin çıktısı:
Input: 23,foo 42,bar Output: 23,FOO 42,BAR
Ayrıca Bakınız
- mysqli_set_local_infile_default() - Unsets user defined handler for load local infile command
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User Contributed Notes
mysqli::set_local_infile_handler