barryvdh/laravel-dompdf 包
将 HTML 转成 PDF 的包
安装
composer require barryvdh/laravel-dompdf
发布配置
php artisan vendor:publish --provider="Barryvdh\DomPDF\ServiceProvider"
config/app.conf中 providers 和 aliases 配置根据你的 laravel 版本看
providers 中
Barryvdh\DomPDF\ServiceProvider::class,
aliases 中
'PDF' => Barryvdh\DomPDF\Facade::class,
测试
写一个测试脚本，简单逻辑如下：
public function test200($params)
{
$url = $params[1];
if (empty($url)) {
return ['code' => 10001, 'msg' => '链接地址不能为空', 'url' => ''];
}
if (empty($filename)) {
$filename = uniqid() . date('YmdHis');
}
$filename = $filename . '.pdf';
$div = "/pdf/prediction/";
if (!Storage::disk('public')->exists("/{$div}")) {
Storage::disk('public')->makeDirectory("/{$div}");
}
$config = ['path' => Storage::disk('public')->path($div)];
// $html = file_get_contents($url);
$html = <<<html
<style>
body{
font-family:"STSONG";
}
</style>
<h3>pdf 下载</h3>
<table>
<tr>
<td>数学</td>
<td>物理</td>
<td>English</td>
<td>主要测试中文</td>
</tr>
<tr>
<td>数学</td>
<td>物理</td>
<td>English</td>
<td>主要测试中文</td>
</tr>
<tr>
<td>数学</td>
<td>物理</td>
<td>English</td>
<td>主要测试中文</td>
</tr>
</table>
html;
Pdf::loadHTML($html)
->setPaper('a4', 'landscape')
->setWarnings(false)
->save($config['path'] . $filename);
$data = ['code' => 1, 'msg' => 'PDF已生成', 'url' => $config['path'] . $filename];
dd($data);
}
运行脚本 php artisan test 200 xxx
找到生成的相应的PDF路径，打开PDF查看，发现中文乱码
解决中文乱码
下载字体文件
下载一个中文字体包，ttf 格式的，可以直接在系统字体文件夹中复制一个中文字体，比如华文宋体，将字体放在项目根目录下，和 .env 文件同级
下载字体转换代码
下载字体转换代码，GitHub地址: https://github.com/dompdf/utils/ 下载那个 load_font.php 即可，将下载的文件放根目录
执行代码 php load_font.php stsong STSONG.TTF
执行成功后，字体安装位置在 vendor/dompdf/dompdf/lib/fonts/ 下，会生成 installed-fonts.json 、STSONG.TTF 和 STSONG.ufm
将转换好的字体放在合适的地方
因为是放在 vendor 下，对实际项目中可能不便，所以要将该字体和配置文件提取出来，在 storage 文件夹中新建一个文件夹 fonts ，将 installed-fonts.json 、STSONG.TTF 和 STSONG.ufm 放在 fonts 文件夹中
修改转换好的json文件
打开 installed-fonts.json 文件，发现里面是引用的绝对路径，修改成字体文件的文件名
{
"stsong": {
"normal": "STSONG"
}
}
config/dompdf.php 配置
"font_dir" => storage_path('fonts'),
"font_cache" => storage_path('fonts'),
配置完成后，再次执行脚本 php artisan test 200 xxx
PDF 过大
将 config/dompdf.php 中的 enable_font_subsetting字段设置为 true
load_font.php 文件内容如下:
<?php
// 1. [Required] Point to the composer or dompdf autoloader
require_once "vendor/autoload.php";
// 2. [Optional] Set the path to your font directory
// By default dompdf loads fonts to dompdf/lib/fonts
// If you have modified your font directory set this
// variable appropriately.
//$fontDir = "lib/fonts";
// *** DO NOT MODIFY BELOW THIS POINT ***
use Dompdf\Dompdf;
use Dompdf\CanvasFactory;
use Dompdf\Exception;
use Dompdf\FontMetrics;
use Dompdf\Options;
use FontLib\Font;
/**
* Display command line usage
*/
function usage() {
echo <<<EOD
Usage: {$_SERVER["argv"][0]} font_family [n_file [b_file] [i_file] [bi_file]]
font_family: the name of the font, e.g. Verdana, 'Times New Roman',
monospace, sans-serif. If it equals to "system_fonts",
all the system fonts will be installed.
n_file: the .ttf or .otf file for the normal, non-bold, non-italic
face of the font.
{b|i|bi}_file: the files for each of the respective (bold, italic,
bold-italic) faces.
If the optional b|i|bi files are not specified, load_font.php will search
the directory containing normal font file (n_file) for additional files that
it thinks might be the correct ones (e.g. that end in _Bold or b or B). If
it finds the files they will also be processed. All files will be
automatically copied to the DOMPDF font directory, and afm files will be
generated using php-font-lib (https://github.com/PhenX/php-font-lib).
Examples:
./load_font.php silkscreen /usr/share/fonts/truetype/slkscr.ttf
./load_font.php 'Times New Roman' /mnt/c_drive/WINDOWS/Fonts/times.ttf
EOD;
exit;
}
if ( $_SERVER["argc"] < 3 && @$_SERVER["argv"][1] != "system_fonts" ) {
usage();
}
$dompdf = new Dompdf();
if (isset($fontDir) && realpath($fontDir) !== false) {
$dompdf->getOptions()->set('fontDir', $fontDir);
}
/**
* Installs a new font family
* This function maps a font-family name to a font. It tries to locate the
* bold, italic, and bold italic versions of the font as well. Once the
* files are located, ttf versions of the font are copied to the fonts
* directory. Changes to the font lookup table are saved to the cache.
*
* @param Dompdf $dompdf dompdf main object
* @param string $fontname the font-family name
* @param string $normal the filename of the normal face font subtype
* @param string $bold the filename of the bold face font subtype
* @param string $italic the filename of the italic face font subtype
* @param string $bold_italic the filename of the bold italic face font subtype
*
* @throws Exception
*/
function install_font_family($dompdf, $fontname, $normal, $bold = null, $italic = null, $bold_italic = null) {
$fontMetrics = $dompdf->getFontMetrics();
// Check if the base filename is readable
if ( !is_readable($normal) )
throw new Exception("Unable to read '$normal'.");
$dir = dirname($normal);
$basename = basename($normal);
$last_dot = strrpos($basename, '.');
if ($last_dot !== false) {
$file = substr($basename, 0, $last_dot);
$ext = strtolower(substr($basename, $last_dot));
} else {
$file = $basename;
$ext = '';
}
if ( !in_array($ext, array(".ttf", ".otf")) ) {
throw new Exception("Unable to process fonts of type '$ext'.");
}
// Try $file_Bold.$ext etc.
$path = "$dir/$file";
$patterns = array(
"bold" => array("_Bold", "b", "B", "bd", "BD"),
"italic" => array("_Italic", "i", "I"),
"bold_italic" => array("_Bold_Italic", "bi", "BI", "ib", "IB"),
);
foreach ($patterns as $type => $_patterns) {
if ( !isset($$type) || !is_readable($$type) ) {
foreach($_patterns as $_pattern) {
if ( is_readable("$path$_pattern$ext") ) {
$$type = "$path$_pattern$ext";
break;
}
}
if ( is_null($$type) )
echo ("Unable to find $type face file.\n");
}
}
$fonts = compact("normal", "bold", "italic", "bold_italic");
$entry = array();
// Copy the files to the font directory.
foreach ($fonts as $var => $src) {
if ( is_null($src) ) {
$entry[$var] = $dompdf->getOptions()->get('fontDir') . '/' . mb_substr(basename($normal), 0, -4);
continue;
}
// Verify that the fonts exist and are readable
if ( !is_readable($src) )
throw new Exception("Requested font '$src' is not readable");
$dest = $dompdf->getOptions()->get('fontDir') . '/' . basename($src);
if ( !is_writeable(dirname($dest)) )
throw new Exception("Unable to write to destination '$dest'.");
echo "Copying $src to $dest...\n";
if ( !copy($src, $dest) )
throw new Exception("Unable to copy '$src' to '$dest'");
$entry_name = mb_substr($dest, 0, -4);
echo "Generating Adobe Font Metrics for $entry_name...\n";
$font_obj = Font::load($dest);
$font_obj->saveAdobeFontMetrics("$entry_name.ufm");
$font_obj->close();
$entry[$var] = $entry_name;
}
// Store the fonts in the lookup table
$fontMetrics->setFontFamily($fontname, $entry);
// Save the changes
$fontMetrics->saveFontFamilies();
}
// If installing system fonts (may take a long time)
if ( $_SERVER["argv"][1] === "system_fonts" ) {
$fontMetrics = $dompdf->getFontMetrics();
$files = glob("/usr/share/fonts/truetype/*.ttf") +
glob("/usr/share/fonts/truetype/*/*.ttf") +
glob("/usr/share/fonts/truetype/*/*/*.ttf") +
glob("C:\\Windows\\fonts\\*.ttf") +
glob("C:\\WinNT\\fonts\\*.ttf") +
glob("/mnt/c_drive/WINDOWS/Fonts/");
$fonts = array();
foreach ($files as $file) {
$font = Font::load($file);
$records = $font->getData("name", "records");
$type = $fontMetrics->getType($records[2]);
$fonts[mb_strtolower($records[1])][$type] = $file;
$font->close();
}
foreach ( $fonts as $family => $files ) {
echo " >> Installing '$family'... \n";
if ( !isset($files["normal"]) ) {
echo "No 'normal' style font file\n";
}
else {
install_font_family($dompdf, $family, @$files["normal"], @$files["bold"], @$files["italic"], @$files["bold_italic"]);
echo "Done !\n";
}
echo "\n";
}
}
else {
call_user_func_array("install_font_family", array_merge( array($dompdf), array_slice($_SERVER["argv"], 1) ));
}