PHP saves images in binary form to mysql database_PHP tutorial-PHP Tutorial-php.cn

PHP saves images in binary form to mysql database_PHP tutorial

WBOY

Release： 2016-07-13 17:04:29

Original

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php Save pictures in binary form to mysql database

php tutorial Save pictures in binary form to mysql tutorial database tutorial

$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 = << create table pix (
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 center
$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 ();
}
?>

Upload an image to a database

Here's the latest picture

Please upload a new picture and title

Please choose an image to upload:

Please enter the title of that picture:

then:

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