Creare delle immagini in PHP con del testo.
Ciao a tutti, io ho questo codice, vorrei sapere come posso utilizzarlo per creare delle immagini, dovrei usare qualche echo ma non ci capisco molto, l'ho solo riadattato per creare Sign e non avatar :lol:
Codice PHP:
<?php
/**
*
* @package: Icy Phoenix
* @version $Id: generate_sign.php - 1.0.0 - 2006/09/29
* @copyright (c) 2006 Mighty Gorgon
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/
// CTracker_Ignore: File checked by human
define('IN_PHPBB', true);
define('MG_CTRACK_FLAG', true);
$phpbb_root_path = './';
include($phpbb_root_path . 'extension.inc');
include($phpbb_root_path . 'common.' . $phpEx);
$fonts_path = 'images/fonts/';
$generator_template_path = 'images/sign/base/';
$dest_pic = htmlspecialchars($_GET['cachefile']);
$source_pic = htmlspecialchars($_GET['signfile']);
$source_pic_full = $source_pic . '.png';
$text_content = htmlspecialchars(stripslashes($_GET['text_content']));
$text_size = (isset($_GET['text_size'])) ? intval($_GET['text_size']) : '10';
//$text_font = (isset($_GET['text_font'])) ? htmlspecialchars($_GET['text_font']) : 'triplex_bold.ttf';
$text_font = (isset($_GET['text_font'])) ? htmlspecialchars($_GET['text_font']) : 'tahoma.ttf';
$text_font = $fonts_path . $text_font;
$text_color = (isset($_GET['text_color'])) ? htmlspecialchars($_GET['text_color']) : '#FFFFFF';
$text_position = (isset($_GET['text_position'])) ? htmlspecialchars($_GET['text_position']) : '0';
$sign_array = array('background_1', 'background_2');
if (in_array($source_pic_full, $sign_array))
{
$source_pic = $generator_template_path . $source_pic_full;
}
else
{
$num = mt_rand(1, count($sign_array));
$source_pic = $generator_template_path . $sign_array[$num];
}
write_text($source_pic, $dest_pic, $text_content, $text_font, $text_size, $text_color, $text_position);
//write_text($source_pic, $dest_pic, $text_content, $text_font, $text_size, '#FFFFAA', $text_position);
/**
* Write text on images
*
* Detail description
* @param none
* @since 1.0
*/
function write_text($source_pic, $dest_pic, $text_content, $text_font, $text_size = '10', $text_color = '#FFFFFF', $text_position = '0')
{
$temp_pic = imagecreatefrompng($source_pic);
list($image_width, $image_height) = getimagesize($source_pic);
/*
$temp_pic_empty = imagecreatetruecolor ($image_width, $image_height);
imagealphablending($temp_pic_empty, false);
imagecopyresampled($temp_pic_empty, $temp_pic, 0, 0, 0, 0, $image_width, $image_height, $image_width, $image_height);
imagesavealpha($temp_pic_empty, true);
//imagepng($im_re, 'small_redfade.png');
$temp_pic2 = imagecreatefrompng($source_pic);
*/
// Calculate the centre
for(;;)
{
list($left_x, , $right_x) = imagettfbbox($text_size, $text_position, $text_font, $text_content);
$text_width = $right_x - $left_x;
if($image_width > $text_width + 5)
{
break;
}
$text_size = $text_size - 0.5;
if($text_size == 1)
{
die('Font size may not be reduced further, try to insert a shorter text');
}
}
$text_padding = ($image_width - $text_width) / 2;
$text_color = (substr($text_color, 0, 1) == '#') ? substr($text_color, 1, 6) : $text_color;
$text_color_r = hexdec(substr($text_color, 0, 2));
$text_color_g = hexdec(substr($text_color, 2, 2));
$text_color_b = hexdec(substr($text_color, 4, 2));
$text_color = imagecolorresolve($temp_pic, $text_color_r, $text_color_g, $text_color_b);
//$text_color = imagecolorallocate($temp_pic, $text_color_r, $text_color_g, $text_color_b);
imagettftext($temp_pic, $text_size, $text_position, $text_padding, ($image_height - ($text_size / 2)), $text_color, $text_font, $text_content);
if($_GET['dl'])
{
header('Content-Disposition: attachment; filename="sign.png"');
}
header("Content-type: image/png");
imagepng($temp_pic, $dest_pic);
imagepng($temp_pic);
imagedestroy($temp_pic);
/*
header('Content-type: image/gif');
imagegif($temp_pic, $dest_pic);
imagegif($temp_pic);
imagedestroy($temp_pic);
*/
return true;
}
?>
