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mysqli functions ,
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(PHP 5)
mysqli::set_local_infile_handler -- mysqli_set_local_infile_handler — Set callback function for LOAD DATA LOCAL INFILE command
Object oriented style (method)
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
Apenas para estilo de procedimento: Um identificador de conexão retornado por mysqli_connect() or mysqli_init()
A callback function or object method taking the following parameters:
A PHP stream associated with the SQL commands INFILE
A string buffer to store the rewritten input into
The maximum number of characters to be stored in the buffer
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 falhas.
Exemplo #1 Object oriented style
<?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";
}
?>
Exemplo #2 Procedural style
<?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";
}
?>
O exemplo acima irá imprimir:
Input: 23,foo 42,bar Output: 23,FOO 42,BAR
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