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    imagestringup

    (PHP 4, PHP 5, PHP 7, PHP 8)

    imagestringup — Draw a string vertically

    Descrizione

    imagestringup(
        GdImage $image,
        GdFont|int $font,
        int $x,
        int $y,
        string $string,
        int $color
    ): true

    Draws a string vertically at the given coordinates.

    Elenco dei parametri

    image

    Una risorsa immagine, restituita da una delle funzioni di creazione immagine, come imagecreatetruecolor().

    font

    Può essere 1, 2, 3, 4, 5 per i font interni con codifica latin2 (dove numeri più alti corrispondono a font più grandi) o qualsiasi identificatore di font registrato con imageloadfont().

    x

    x-coordinate of the bottom left corner.

    y

    y-coordinate of the bottom left corner.

    string

    The string to be written.

    color

    A color identifier created with imagecolorallocate().

    Valori restituiti

    Always returns true.

    Log delle modifiche

    Versione Descrizione
    8.1.0 The font parameter now accepts both an GdFont instance and an int; previously only int was accepted.
    8.0.0 image expects a GdImage instance now; previously, a valid gd resource was expected.

    Esempi

    Example #1 imagestringup() example

    <?php
    // create a 100*100 image
    $im = imagecreatetruecolor(100, 100);

    // Write the text
    $textcolor = imagecolorallocate($im, 0xFF, 0xFF, 0xFF);
    imagestringup($im, 3, 40, 80, 'gd library', $textcolor);

    // Save the image
    imagepng($im, './stringup.png');
    ?>

    Il precedente esempio visualizzerà qualcosa simile a:

    Output of example : imagestringup()

    Vedere anche:

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    User Contributed Notes 1 note

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    1
    Anonymous
    23 years ago
    function imagestringdown(&$image, $font, $x, $y, $s, $col)
{
    $width = imagesx($image);
   $height = imagesy($image);
    
    $text_image = imagecreate($width, $height);

   $white = imagecolorallocate ($text_image, 255, 255, 255);
   $black = imagecolorallocate ($text_image, 0, 0, 0);  

    $transparent_colour = $white;
   if ($col == $white)
      $transparent_color = $black;
  
   imagefill($text_image, $width, $height, $transparent_colour);
   imagecolortransparent($text_image, $transparent_colour);
  
   imagestringup($text_image, $font, ($width - $x), ($height - $y), $s, $col);
   imagerotate($text_image, 180.0, $transparent_colour);
  
   imagecopy($image, $text_image, 0, 0, 0, 0, $width, $height);
}
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