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このドキュメントでは、 php中国語ネットマニュアル リリース
(PHP 5)
mysqli::set_local_infile_handler -- mysqli_set_local_infile_handler — Set callback function for LOAD DATA LOCAL INFILE command
面向对象风格
$link
, callable $read_func
)过程化风格
$link
, callable $read_func
)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
link
仅以过程化样式:由 mysqli_connect() 或 mysqli_init() 返回的链接标识。
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.
成功时返回 TRUE
, 或者在失败时返回 FALSE
。
Example #1 mysqli::set_local_infile_handler() example
面向对象风格
<?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" ;
}
?>
过程化风格
<?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" ;
}
?>
以上例程会输出:
Input: 23,foo 42,barOutput: 23,FOO 42,BAR