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
Descrierea
Stil obiect-orientat
Stil procedural
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
Parametri
-
link -
Numai stilul procedural: Un identificator al legăturii întors de mysqli_connect() sau mysqli_init()
-
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.
Valorile întoarse
Întoarce valoarea TRUE în cazul
succesului sau FALSE în cazul eșecului.
Exemple
Example #1 mysqli::set_local_infile_handler() example
Stil obiect-orientat
<?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";
}
?>
Stil procedural
<?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";
}
?>
Exemplele de mai sus vor afișa:
Input: 23,foo 42,bar Output: 23,FOO 42,BAR
Vedeți de asemenea
- mysqli_set_local_infile_default() - Unsets user defined handler for load local infile command
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