imagexbm

(PHP 5, PHP 7)

imagexbm — Output an XBM image to browser or file

Descrierea

imagexbm ( resource $image , mixed $filename , int $foreground = ? ) : bool

Outputs or save an XBM version of the given image.

Notă: imagexbm() doesn't apply any padding, so the image width has to be a multiple of 8. This restriction does no longer apply as of PHP 7.0.9.

Parametri

image

O resursă - imagine, întoarsă de una din funcțiile de creare a imaginilor, cum ar fi imagecreatetruecolor().

filename

The path to save the file to, given as string. If null, the raw image stream will be output directly.

The filename (without the .xbm extension) is also used for the C identifiers of the XBM, whereby non alphanumeric characters of the current locale are substituted by underscores. If filename is set to null, image is used to build the C identifiers.

foreground

You can set the foreground color with this parameter by setting an identifier obtained from imagecolorallocate(). The default foreground color is black. All other colors are treated as background.

Valorile întoarse

Întoarce valoarea true în cazul succesului sau false în cazul eșecului.

Precauţie

Însă dacă libgd eșuează să afișeze imaginea, această funcție întoarce true.

Istoricul schimbărilor

Versiune	Descriere
8.0.0	The fourth parameter, which was unused, has been removed.

Exemple

Example #1 Saving an XBM file


<?php
// Create a blank image and add some text
$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5,  'A Simple Text String', $text_color);

// Save the image
imagexbm($im, 'simpletext.xbm');

// Free up memory
imagedestroy($im);
?>

Example #2 Saving an XBM file with a different foreground color


<?php
// Create a blank image and add some text
$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5,  'A Simple Text String', $text_color);

// Set a replacement foreground color
$foreground_color = imagecolorallocate($im, 255, 0, 0);

// Save the image
imagexbm($im, NULL, $foreground_color);

// Free up memory
imagedestroy($im);
?>

Note

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User Contributed Notes 1 note

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Anonymous ¶

13 years ago


FlagCreation with some random text inside.

<?php
class Logo{
    private $colors;
        private $imgWidth;  
    private $imgHeight;   
    private $img;
    private $text;

    public function __construct($width = 100, $height = 60){
        $this->imgWidth = $width;
        $this->imgHeight = $height;
        $this->text = "RND TEXT";
        $this->createImage();
    }
    
    public function getText(){
        return $this->text;
    }
    
    public function createImage(){
        $this->img = imagecreatetruecolor($this->imgWidth,$this->imgHeight);
            $farbe = array(200,200,200); 
            $this->colors[0] = $this->makeColor($farbe);
            $farbe = array(100,100,200); 
            $this->colors[1] = $this->makeColor($farbe);
        
        imagefill($this->img,0,0,$this->colors[0]);
                
        $streifenhoehe = intval($this->imgHeight / 6);        
        $textgroesse = intval($streifenhoehe *2);
        $y = 0;
        $x = 0;
        
        imagefilledrectangle($this->img,0,0,$this->imgWidth,$streifenhoehe,$this->colors[1]);
        $y = $this->imgHeight - $streifenhoehe;
        imagefilledrectangle($this->img,0,$y,$this->imgWidth,$this->imgHeight,$this->colors[1]);
        
        
        $textma = imagettfbbox ( $textgroesse ,0 , "ARIAL.TTF", $this->text);
        $textanfang = ($this->imgWidth - ($textma[2] - $textma[0]))/2;
        $textanfang_hoehe = intval(($this->imgHeight-($textma[7]-$textma[1]))/2);
        
         imagettftext($this->img, $textgroesse,0,$textanfang, $textanfang_hoehe, $this->colors[1],"ARIAL.TTF", $this->text);
        
        
    }
    
    public function makeColor($color){
        if (count($color)%3 != 0)
            return false;
        else
            return imagecolorallocate($this->img,$color[0],$color[1],$color[2]);
    }
    
    public function getImage(){
         header('Content-Type: image/gif', true); 
        imagejpeg($this->img);
    }    
}

$logo = new Logo(300,180);
$logo->getImage();
?>

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