(PHP 5, PHP 7)
mysqli::set_local_infile_handler -- mysqli_set_local_infile_handler — Set callback function for LOAD DATA LOCAL INFILE command
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
linkNumai stilul procedural: Un identificator al legăturii întors de mysqli_connect() sau mysqli_init()
read_funcA callback function or object method taking the following parameters:
streamA PHP stream associated with the SQL commands INFILE
&bufferA string buffer to store the rewritten input into
buflenThe maximum number of characters to be stored in the buffer
&errormsgIf 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.
Întoarce valoarea TRUE în cazul
succesului sau FALSE în cazul eșecului.
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