PHP
downloads | documentation | faq | getting help | mailing lists | reporting bugs | php.net sites | links | conferences | my php.net

search for in the

imagecreatefromxbm> <imagecreatefromstring
Last updated: Fri, 25 Jul 2008

view this page in

imagecreatefromwbmp

(PHP 4 >= 4.0.1, PHP 5)

imagecreatefromwbmpCreate a new image from file or URL

Описание

resource imagecreatefromwbmp ( string $filename )

imagecreatefromwbmp() returns an image identifier representing the image obtained from the given filename.

imagecreatefromwbmp() returns an empty string on failure. It also outputs an error message, which unfortunately displays as a broken link in a browser. To ease debugging the following example will produce an error WBMP:

Пример #1 Example to handle an error during creation

<?php
function LoadWBMP($imgname)
{
    
$im = @imagecreatefromwbmp($imgname); /* Attempt to open */
    
if (!$im) { /* See if it failed */
        
$im  imagecreatetruecolor (2020); /* Create a blank image */
        
$bgc imagecolorallocate($im255255255);
        
$tc  imagecolorallocate($im000);
        
imagefilledrectangle($im001010$bgc);
        
/* Output an errmsg */
        
imagestring($im155"Error loading $imgname"$tc);
    }
    return 
$im;
}
?>

Подсказка

Для этой функции вы можете использовать URL в качестве имени файла, если была включена опция "fopen wrappers". Смотрите более подробную информацию об определении имени файла в описании функции fopen(), а также список поддерживаемых протоколов URL в List of Supported Protocols/Wrappers.

Список параметров

filename

Path to the WBMP image

Возвращаемые значения

Returns an image resource identifier on success, FALSE on errors.

Примечания

Замечание: WBMP support is only available if PHP was compiled against GD-1.8 or later.

Внимание

Версии PHP для Windows до PHP 4.3.0 не поддерживают возможность использования удаленных файлов этой функцией даже в том случае, если опция allow_url_fopen включена.



imagecreatefromxbm> <imagecreatefromstring
Last updated: Fri, 25 Jul 2008
 
add a note add a note User Contributed Notes
imagecreatefromwbmp
AeroX @ aerox-studios
11-May-2008 02:54
.bmp is just hex encoded RGB values.
All you need to do is open in binary mode and seperate the header from the body.
Decode the width and height from the header.
Then create the image pixel by pixel from the RGB values in the body.

function imagecreatefrombmp( $filename )
{
    $file = fopen( $filename, "rb" );
    $read = fread( $file, 10 );
    while( !feof( $file ) && $read != "" )
    {
        $read .= fread( $file, 1024 );
    }
    $temp = unpack( "H*", $read );
    $hex = $temp[1];
    $header = substr( $hex, 0, 104 );
    $body = str_split( substr( $hex, 108 ), 6 );
    if( substr( $header, 0, 4 ) == "424d" )
    {
        $header = substr( $header, 4 );
        // Remove some stuff?
        $header = substr( $header, 32 );
        // Get the width
        $width = hexdec( substr( $header, 0, 2 ) );
        // Remove some stuff?
        $header = substr( $header, 8 );
        // Get the height
        $height = hexdec( substr( $header, 0, 2 ) );
        unset( $header );
    }
    $x = 0;
    $y = 1;
    $image = imagecreatetruecolor( $width, $height );
    foreach( $body as $rgb )
    {
        $r = hexdec( substr( $rgb, 4, 2 ) );
        $g = hexdec( substr( $rgb, 2, 2 ) );
        $b = hexdec( substr( $rgb, 0, 2 ) );
        $color = imagecolorallocate( $image, $r, $g, $b );
        imagesetpixel( $image, $x, $height-$y, $color );
        $x++;
        if( $x >= $width )
        {
            $x = 0;
            $y++;
        }
    }
    return $image;
}
nko38 dot fr at gmail dot com
02-Nov-2005 05:20
for .bmp files, convert them with bmp2png, then you can use this files in gd

http://cetus.sakura.ne.jp/softlab/b2p-home/
clambert at whitecrown dot net
16-Jun-2001 01:47
WBMP images are Wireless Bitmaps, not Windows Bitmaps. WBMP is used for bandwidth constrained, black and white, limited devices such as PDAs and Cell Phones.

imagecreatefromxbm> <imagecreatefromstring
Last updated: Fri, 25 Jul 2008
 
 
show source | credits | stats | sitemap | contact | advertising | mirror sites