使用Pango和Cairo在PHP中为每个单词而不是整个字符串输出图像 - Output an Image for Each Word Rather than the Whole String in PHP Using Pango and Cairo

Output an Image for Each Word Rather than the Whole String in PHP Using Pango and Cairo

我正在研究一种解决方案，可以自动为包含复杂脚本(UTF-8中的高棉语)的大型文档的每个单词制作图像。我找到了能正确翻译高棉语的Pango和Cairo。我不是一个很好的程序员，所以我从Pango和Cairo的PHP版本开始。但是我不确定如何分解字符串并自动为每个单词生成图像。单词之间没有"真正的"空格，只有Unicode字符U+0200B(零宽度空格)。

有人愿意帮助我吗?

下面是我当前使用的输出整个字符串的代码:

<?php
header("Content-Type: image/png");
/* Make a 300x300px image surface */
$s = new CairoImageSurface(CairoFormat::ARGB32, 300, 300);
$c = new CairoContext($s);
/* Set the background to white */
$c->setSourceRGB(1, 1, 1);
$c->paint();
/* Let's draw using black 'ink' */
$c->setSourceRGB(0, 0, 0);
/* Make a Pango layout, set the font, then set the layout size */
$l = new PangoLayout($c);
$desc = new PangoFontDescription("KhmerOS Regular 28");
$l->setFontDescription($desc);
$l->setWidth(250 * PANGO_SCALE);
/* Here is the text */
$l->setMarkup("កាលដើមដំបូងឡើយ ព្រះបានបង្កើតផ្ទៃមេឃ និងផែនដី។");
/* Draw the layout on the surface */
$l->showLayout($c);
/* Output the PNG to the browser */
$s->writeToPng("php://output");
?>

我使用foreach:

<?php
//header("Content-Type: image/png");
$str = "កាលដើមដំបូងឡើយ ព្រះបានបង្កើតផ្ទៃមេឃ និងផែនដី។";
//$words = explode('', $str);
$words = preg_split('/ |/', $str);
$i=1;
foreach($words as $word) {
/* Make a 300x300px image surface */
$s = new CairoImageSurface(CairoFormat::ARGB32, 300, 300);
$c = new CairoContext($s);
/* Set the background to white */
$c->setSourceRGB(1, 1, 1);
$c->paint();
/* Let's draw using black 'ink' */
$c->setSourceRGB(0, 0, 0);
/* Make a Pango layout, set the font, then set the layout size */
$l = new PangoLayout($c);
$desc = new PangoFontDescription("KhmerOS Regular 28");
$l->setFontDescription($desc);
$l->setWidth(250 * PANGO_SCALE);

/* Here, we use Pango markup to make part of the text bold */

$i++;
$l->setMarkup($word);
/* Draw the layout on the surface */
$l->showLayout($c);
/* Output the PNG to the browser */
//$s->writeToPng("php://output");
$s->writeToPng(dirname(__FILE__) . '/test'.$i.'.png');
echo $img = "<img src='"test".$i.".png'">";
echo $i;
}
?>