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php 把图片以二进制形式保存到mysql数据库
时间:2022-06-24 19:14:00 编辑:袖梨 来源:一聚教程网
$errmsg = "" ;
if (! @ mysql_connect ( "localhost" , "trainee" , "abc123" )) {
$errmsg = "Cannot connect to database" ;
}
@ mysql_select_db ( "wellho" );
// First run ONLY - need to create table by un commenting this
// Or with silent @ we can let it fail every subsequent time ;-)
$q = <<
pid int primary key not null auto_increment,
title text,
imgdata longblob)
CREATE;
@ mysql_query ( $q );
// Insert any new image into database
if ( $_REQUEST [ completed ] == 1 ) {
// Need to add - check for large upload. Otherwise the code
// will just duplicate old file ;-)
// ALSO - note that latest.img must be public write and in a
// live application should be in another (safe!) directory.
move_uploaded_file ( $_FILES [ 'imagefile' ][ 'tmp_name' ], "latest.img" );
$instr = fopen ( "latest.img" , "rb" );
$image = mysql_real_escape_string ( fread ( $instr , filesize ( "latest.img" )));
if ( strlen ( $instr ) < 149000 ) {
mysql_query ( "insert into pix (title, imgdata) values ("" .
$_REQUEST [ whatsit ].
"", "" .
$image .
"")" );
} else {
$errmsg = "Too large!" ;
}
}
// Find out about latest image
$gotten = @ mysql_query ( "select * from pix order by pid desc limit 1" );
if ( $row = @ mysql_fetch_assoc ( $gotten )) {
$title = htmlspecialchars ( $row [ title ]);
$bytes = $row [ imgdata ];
} else {
$errmsg = "There is no image in the database yet" ;
$title = "no database image available" ;
// Put up a picture of our training centre
$instr = fopen ( "../wellimg/ctco.jpg" , "rb" );
$bytes = fread ( $instr , filesize ( "../wellimg/ctco.jpg" ));
}
// If this is the image request, send out the image
if ( $_REQUEST [ gim ] == 1 ) {
header ( "Content-type: image/jpeg" );
print $bytes ;
exit ();
}
?>
Here's the latest picture
= $errmsg ?>
= $title ?>
Please upload a new picture and title
Link - view images already uploaded
Link - technical article including source code
Note - by uploading an image to this site, you agree that you are the
copyright owner, that the picture is legally acceptable and that you take
full responsibility for this, and that the owners of this site are
henceforth able to make free limitless use of the picture if they so
wish. Your IP address and other details may be logged as you upload.
Sorry about this note - have to protect ourselves.
By Graham Ellis - graham@wellho.net>
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