(PHP 5)
mysqli::set_local_infile_handler -- mysqli_set_local_infile_handler — Set callback function for LOAD DATA LOCAL INFILE command
Estilo orientado à objeto
Estilo 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
linkProcedural style only: A link identifier returned by mysqli_connect() or 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.
Retorna TRUE em caso de sucesso ou FALSE em caso de falha.
Exemplo #1 mysqli::set_local_infile_handler() example
Estilo orientado à objeto
<?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";
}
?>
Estilo 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";
}
?>
Os exemplos acima irão imprimir:
Input: 23,foo 42,bar Output: 23,FOO 42,BAR