So, finally heres my text2image_helper.php, hope you like i:
<?php
/**
* Text To Image Function
*
* PHP versions 4 and 5
*
* @author Stephan Petzl <spetzl@gmx.at>
* @copyright 2005 © Stephan Petzl
* @license non, just use the file as you like, but please dont throw this sentence away
* @link http://ra.synapsick.net
*/
/**
* Text to image Function
*
* Convert text to a image
*
* @param string $text Text to be converted
* @param string $configArray Optional configuration array allows you to set: 'background-color', 'color', 'font-size', 'font-file', 'params'
* @param int $filepath Directory where generated images are stored
* @return void
*/
function text2image($text,$configArray=array(),$filepath='public/images/generated')
{
if(trim($text) == "")
return "";
$conf = array();
$conf['background-color'] = isset($configArray['background-color']) ? $configArray['background-color'] : '#FFFFFF';
$conf['color'] = isset($configArray['color']) ? $configArray['color'] : '#404040';
$conf['font-size'] = isset($configArray['font-size']) ? $configArray['font-size'] : '19';
$conf['font-file'] = isset($configArray['font-file']) ? $configArray['font-file'] : APPPATH.'fonts/HelveticaNeue-Condensed.otf';
$conf['params'] = isset($configArray['params']) ? $configArray['params'] : '';
// calculate a hash out of the configuration array-> image is only generated if its not found in the filepath
$str = $text;
foreach($conf as $key => $val){
$str .= $key."=".$val;
}
$hash = md5($str);
$imagepath = $filepath.'/'.$hash.'.gif';
if(!file_exists($imagepath)){
$data = imagettfbbox($conf['font-size'], 0, $conf['font-file'], $text);
$x = 0 - $data[6];
$y = 0 - $data[7]-$data[3];
//print_r($data);
$y *= 1.1; //dunno why - but without this line the area will be a bit too small in hight
//echo $y;
$res = imagecreate($data[2]*1.05, 2*$data[3] + $y);
$r = hexdec(substr($conf['background-color'],1,2));
$g = hexdec(substr($conf['background-color'],3,2));
$b = hexdec(substr($conf['background-color'],5,2));
$backgroundcolor = imagecolorallocate($res,$r,$g, $b);
$r = hexdec(substr($conf['color'],1,2));
$g = hexdec(substr($conf['color'],3,2));
$b = hexdec(substr($conf['color'],5,2));
$textcolor = imagecolorallocate($res,$r, $g, $b);
imagettftext($res, $conf['font-size'], 0, 0, $conf['font-size'], $textcolor, $conf['font-file'], $text);
imagegif($res, $imagepath);
}
return '<img src="'.$imagepath.'" border="0" alt="'.$text.'" '.$conf['params'].'/>';
}
?>
