<?php // Plug-in 19: Gif Text
// This is an executable example with additional code supplied
// To obtain just the plug-ins please click on the Download link
// This example requires a TTF font file named oldenglish.ttf
// to be in the same directory
PIPHP_GifText("font1.gif", "Old English Font", "oldenglish.ttf",
26, "ff0000", "ffffff", 1, "444444");
PIPHP_GifText("font2.gif", "Old English Font", "oldenglish.ttf",
36, "ff0000", "ffffff", 2, "444444");
PIPHP_GifText("font3.gif", "Old English Font", "oldenglish.ttf",
46, "ff0000", "ffffff", 3, "444444");
PIPHP_GifText("font4.gif", "Old English Font", "oldenglish.ttf",
56, "ff0000", "ffffff", 4, "444444");
echo "<img src='font1.gif'>";
echo "<img src='font2.gif'>";
echo "<img src='font3.gif'>";
echo "<img src='font4.gif'>";
function PIPHP_GifText($file, $text, $font, $size, $fore, $back,
$shadow, $shadowcolor)
{
// Plug-in 19: Gif Text
//
// This plug-in accepts text input and then turns it into
// a gif image. Various font sizes and effects are available
// The arguments required are:
//
// $file: The path and file to save the finished gif
// $text: The text to display
// $font: Filename of a TTF font file
// $size: Font size to use
// $fore: The foreground color
// $back: The background color
// $shadow: 0 = None, 1 or more = The offset to use
// $shadowcolor: The shadow color (if selected)
$bound = imagettfbbox($size, 0, $font, $text);
$width = $bound[2] + $bound[0] + 6 + $shadow;
$height = abs($bound[1]) + abs($bound[7]) + 5 + $shadow;
$image = imagecreatetruecolor($width, $height);
$bgcol = PIPHP_GD_FN1($image, $back);
$fgcol = PIPHP_GD_FN1($image, $fore);
$shcol = PIPHP_GD_FN1($image, $shadowcolor);
imagefilledrectangle($image, 0, 0, $width, $height, $bgcol);
if ($shadow > 0)
{
imagettftext($image, $size, 0, $shadow + 2,
abs($bound[5]) + $shadow + 2, $shcol, $font, $text);
for ($j = 0 ; $j < 5 ; ++$j)
imagefilter($image, IMG_FILTER_GAUSSIAN_BLUR);
}
imagettftext($image, $size, 0, 2, abs($bound[5]) + 2, $fgcol,
$font, $text);
imagegif($image, $file);
}
function PIPHP_GD_FN1($image, $color)
{
return imagecolorallocate($image,
hexdec(substr($color, 0, 2)),
hexdec(substr($color, 2, 2)),
hexdec(substr($color, 4, 2)));
}
?>
插件说明:本插件需要一个用来保存GIF图像的文件名,一个文本和文本的字体,颜色,字体大小以及阴影等详细信息。具体如下:
$file GIF图像的保存路径和文件名。
$text 需要处理的文本。
$font TrueType字体的路径和文件名。
$size 字体大小。
$fore 前景颜色,用十六进制表示(如000000)。
$back 背景颜色,用十六进制表示(如FFFFFF)。
$shadow 用像素个数表示文字的阴影效果(0表示无阴影)。
$shadowcolor 阴影颜色(如444444)。