用PHP创建PDF中文文档

我使用的是fpdf（www.fpdf.org)，下载了fpdf类库后，还要使用下面的中文类库才能支持中文，但只能使用一种中文字体（华文仿宋）。为此我烦恼了很长时间，现在终于搞定了，将truetype字体转化为pt1字体使用：

下面是在fpdf上找的一个中文类库：
<?php
require(‘fpdf.php’);

$big5_widths=array(‘ ‘=>250,’!’=>250,'”‘=>408,’#’=>668,’$’=>490,’%’=>875,’&’=>698,”’=>250,
‘(‘=>240,’)’=>240,’*’=>417,’+’=>667,’,’=>250,’-‘=>313,’.’=>250,’/’=>520,’0’=>500,’1’=>500,
‘2’=>500,’3’=>500,’4’=>500,’5’=>500,’6’=>500,’7’=>500,’8’=>500,’9’=>500,’:’=>250,’;’=>250,
‘<‘=>667,’=’=>667,’>’=>667,’?’=>396,’@’=>921,’a’=>677,’b’=>615,’c’=>719,’d’=>760,’e’=>625,
‘f’=>552,’g’=>771,’h’=>802,’i’=>354,’j’=>354,’k’=>781,’l’=>604,’m’=>927,’n’=>750,’o’=>823,
‘p’=>563,’q’=>823,’r’=>729,’s’=>542,’t’=>698,’u’=>771,’v’=>729,’w’=>948,’x’=>771,’y’=>677,
‘z’=>635,'[‘=>344,”=>520,’]’=>344,’^’=>469,’_’=>500,’`’=>250,’a’=>469,’b’=>521,’c’=>427,
‘d’=>521,’e’=>438,’f’=>271,’g’=>469,’h’=>531,’i’=>250,’j’=>250,’k’=>458,’l’=>240,’m’=>802,
‘n’=>531,’o’=>500,’p’=>521,’q’=>521,’r’=>365,’s’=>333,’t’=>292,’u’=>521,’v’=>458,’w’=>677,
‘x’=>479,’y’=>458,’z’=>427,'{‘=>480,’|’=>496,’}’=>480,’~’=>667);

$gb_widths=array(‘ ‘=>207,’!’=>270,'”‘=>342,’#’=>467,’$’=>462,’%’=>797,’&’=>710,”’=>239,
‘(‘=>374,’)’=>374,’*’=>423,’+’=>605,’,’=>238,’-‘=>375,’.’=>238,’/’=>334,’0’=>462,’1’=>462,
‘2’=>462,’3’=>462,’4’=>462,’5’=>462,’6’=>462,’7’=>462,’8’=>462,’9’=>462,’:’=>238,’;’=>238,
‘<‘=>605,’=’=>605,’>’=>605,’?’=>344,’@’=>748,’a’=>684,’b’=>560,’c’=>695,’d’=>739,’e’=>563,
‘f’=>511,’g’=>729,’h’=>793,’i’=>318,’j’=>312,’k’=>666,’l’=>526,’m’=>896,’n’=>758,’o’=>772,
‘p’=>544,’q’=>772,’r’=>628,’s’=>465,’t’=>607,’u’=>753,’v’=>711,’w’=>972,’x’=>647,’y’=>620,
‘z’=>607,'[‘=>374,”=>333,’]’=>374,’^’=>606,’_’=>500,’`’=>239,’a’=>417,’b’=>503,’c’=>427,
‘d’=>529,’e’=>415,’f’=>264,’g’=>444,’h’=>518,’i’=>241,’j’=>230,’k’=>495,’l’=>228,’m’=>793,
‘n’=>527,’o’=>524,’p’=>524,’q’=>504,’r’=>338,’s’=>336,’t’=>277,’u’=>517,’v’=>450,’w’=>652,
‘x’=>466,’y’=>452,’z’=>407,'{‘=>370,’|’=>258,’}’=>370,’~’=>605);

class pdf_chinese extends fpdf
{
function addcidfont($family,$style,$name,$cw,$cmap,$registry)
{
$i=count($this->fonts)+1;
$fontkey=strtolower($family).strtoupper($style);
$this->fonts[$fontkey]=array(‘i’=>$i,’type’=>’type0’,’name’=>$name,’up’=>-120,’ut’=>40,’cw’=>$cw,’cmap’=>$cmap,’registry’=>$registry);
}

function addbig5font($family=’big5′)
{
$cw=$globals[‘big5_widths’];
$name=’msungstd-light-acro’;
$cmap=’etenms-b5-h’;
$registry=array(‘ordering’=>’cns1’,’supplement’=>0);
$this->addcidfont($family,”,$name,$cw,$cmap,$registry);
$this->addcidfont($family,’b’,$name.’,bold’,$cw,$cmap,$registry);
$this->addcidfont($family,’i’,$name.’,italic’,$cw,$cmap,$registry);
$this->addcidfont($family,’bi’,$name.’,bolditalic’,$cw,$cmap,$registry);
}

function addgbfont($family=’gb’)
{
$cw=$globals[‘gb_widths’];
$name=’stsongstd-light-acro’;
$cmap=’gbkp-euc-h’;
$registry=array(‘ordering’=>’gb1’,’supplement’=>2);
$this->addcidfont($family,”,$name,$cw,$cmap,$registry);
$this->addcidfont($family,’b’,$name.’,bold’,$cw,$cmap,$registry);
$this->addcidfont($family,’i’,$name.’,italic’,$cw,$cmap,$registry);
$this->addcidfont($family,’bi’,$name.’,bolditalic’,$cw,$cmap,$registry);
}

function getstringwidth($s)
{
if($this->currentfont[‘type’]==’type0′)
return $this->getmbstringwidth($s);
else
return parent::getstringwidth($s);
}

function getmbstringwidth($s)
{
//multi-byte version of getstringwidth()
$l=0;
$cw=&$this->currentfont[‘cw’];
$nb=strlen($s);
$i=0;
while($i<$nb)
{
$c=$s[$i];
if(ord($c)<128)
{
$l+=$cw[$c];
$i++;
}
else
{
$l+=1000;
$i+=2;
}
}
return $l*$this->fontsize/1000;
}

function multicell($w,$h,$txt,$border=0,$align=’l’,$fill=0)
{
if($this->currentfont[‘type’]==’type0′)
$this->mbmulticell($w,$h,$txt,$border,$align,$fill);
else
parent::multicell($w,$h,$txt,$border,$align,$fill);
}

function mbmulticell($w,$h,$txt,$border=0,$align=’l’,$fill=0)
{
//multi-byte version of multicell()
$cw=&$this->currentfont[‘cw’];
if($w==0)
$w=$this->w-$this->rmargin-$this->x;
$wmax=($w-2*$this->cmargin)*1000/$this->fontsize;
$s=str_replace(“\r”,”,$txt);
$nb=strlen($s);
if($nb>0 and $s[$nb-1]==”\n”
$nb–;
$b=0;
if($border)
{
if($border==1)
{
$border=’ltrb’;
$b=’lrt’;
$b2=’lr’;
}
else
{
$b2=”;
if(is_int(strpos($border,’l’)))
$b2.=’l’;
if(is_int(strpos($border,’r’)))
$b2.=’r’;
$b=is_int(strpos($border,’t’)) ? $b2.’t’ : $b2;
}
}
$sep=-1;
$i=0;
$j=0;
$l=0;
$ns=0;
$nl=1;
while($i<$nb)
{
//get next character
$c=$s[$i];
//check if ascii or mb
$ascii=(ord($c)<128);
if($c==”\n”
{
//explicit line break
if($this->ws>0)
{
$this->ws=0;
$this->_out(‘0 tw’);
}
$this->cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
$i++;
$sep=-1;
$j=$i;
$l=0;
$ns=0;
$nl++;
if($border and $nl==2)
$b=$b2;
continue;
}
if(!$ascii)
{
$sep=$i;
$ls=$l;
}
elseif($c==’ ‘)
{
$sep=$i;
$ls=$l;
$ns++;
}
$l+=$ascii ? $cw[$c] : 1000;
if($l>$wmax)
{
//automatic line break
if($sep==-1 or $i==$j)
{
if($i==$j)
$i+=$ascii ? 1 : 2;
if($this->ws>0)
{
$this->ws=0;
$this->_out(‘0 tw’);
}
$this->cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
}
else
{
if($align==’j’)
{
if($s[$sep]==’ ‘)
$ns–;
if($s[$i-1]==’ ‘)
{
$ns–;
$ls-=$cw[‘ ‘];
}
$this->ws=($ns>0) ? ($wmax-$ls)/1000*$this->fontsize/$ns : 0;
$this->_out(sprintf(‘%.3f tw’,$this->ws*$this->k));
}
$this->cell($w,$h,substr($s,$j,$sep-$j),$b,2,$align,$fill);
$i=($s[$sep]==’ ‘) ? $sep+1 : $sep;
}
$sep=-1;
$j=$i;
$l=0;
$ns=0;
$nl++;
if($border and $nl==2)
$b=$b2;
}
else
$i+=$ascii ? 1 : 2;
}
//last chunk
if($this->ws>0)
{
$this->ws=0;
$this->_out(‘0 tw’);
}
if($border and is_int(strpos($border,’b’)))
$b.=’b’;
$this->cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
$this->x=$this->lmargin;
}

function write($h,$txt,$link=”)
{
if($this->currentfont[‘type’]==’type0′)
$this->mbwrite($h,$txt,$link);
else
parent::write($h,$txt,$link);
}

function mbwrite($h,$txt,$link)
{
//multi-byte version of write()
$cw=&$this->currentfont[‘cw’];
$w=$this->w-$this->rmargin-$this->x;
$wmax=($w-2*$this->cmargin)*1000/$this->fontsize;
$s=str_replace(“\r”,”,$txt);
$nb=strlen($s);
$sep=-1;
$i=0;
$j=0;
$l=0;
$nl=1;
while($i<$nb)
{
//get next character
$c=$s[$i];
//check if ascii or mb
$ascii=(ord($c)<128);
if($c==”\n”
{
//explicit line break
$this->cell($w,$h,substr($s,$j,$i-$j),0,2,”,0,$link);
$i++;
$sep=-1;
$j=$i;
$l=0;
if($nl==1)
{
$this->x=$this->lmargin;
$w=$this->w-$this->rmargin-$this->x;
$wmax=($w-2*$this->cmargin)*1000/$this->fontsize;
}
$nl++;
continue;
}
if(!$ascii or $c==’ ‘)
$sep=$i;
$l+=$ascii ? $cw[$c] : 1000;
if($l>$wmax)
{
//automatic line break
if($sep==-1 or $i==$j)
{
if($this->x>$this->lmargin)
{
//move to next line
$this->x=$this->lmargin;
$this->y+=$h;
$w=$this->w-$this->rmargin-$this->x;
$wmax=($w-2*$this->cmargin)*1000/$this->fontsize;
$i++;
$nl++;
continue;
}
if($i==$j)
$i+=$ascii ? 1 : 2;
$this->cell($w,$h,substr($s,$j,$i-$j),0,2,”,0,$link);
}
else
{
$this->cell($w,$h,substr($s,$j,$sep-$j),0,2,”,0,$link);
$i=($s[$sep]==’ ‘) ? $sep+1 : $sep;
}
$sep=-1;
$j=$i;
$l=0;
if($nl==1)
{
$this->x=$this->lmargin;
$w=$this->w-$this->rmargin-$this->x;
$wmax=($w-2*$this->cmargin)*1000/$this->fontsize;
}
$nl++;
}
else
$i+=$ascii ? 1 : 2;
}
//last chunk
if($i!=$j)
$this->cell($l/1000*$this->fontsize,$h,substr($s,$j,$i-$j),0,0,”,0,$link);
}

function _putfonts()
{
$nf=$this->n;
foreach($this->diffs as $diff)
{
//encodings
$this->_newobj();
$this->_out(‘<</type /encoding /baseencoding /winansiencoding /differences [‘.$diff.’]>>’);
$this->_out(‘endobj’);
}
$mqr=get_magic_quotes_runtime();
set_magic_quotes_runtime(0);
foreach($this->fontfiles as $file=>$info)
{
//font file embedding
$this->_newobj();
$this->fontfiles[$file][‘n’]=$this->n;
if(defined(‘fpdf_fontpath’))
$file=fpdf_fontpath.$file;
$size=filesize($file);
if(!$size)
$this->error(‘font file not found’);
$this->_out(‘<</length ‘.$size);
if(substr($file,-2)==’.z’)
$this->_out(‘/filter /flatedecode’);
$this->_out(‘/length1 ‘.$info[‘length1’]);
if(isset($info[‘length2’]))
$this->_out(‘/length2 ‘.$info[‘length2′].’ /length3 0′);
$this->_out(‘>>’);
$f=fopen($file,’rb’);
$this->_putstream(fread($f,$size));
fclose($f);
$this->_out(‘endobj’);
}
set_magic_quotes_runtime($mqr);
foreach($this->fonts as $k=>$font)
{
//font objects
$this->_newobj();
$this->fonts[$k][‘n’]=$this->n;
$this->_out(‘<</type /font’);
if($font[‘type’]==’type0′)
$this->_puttype0($font);
else
{
$name=$font[‘name’];
$this->_out(‘/basefont /’.$name);
if($font[‘type’]==’core’)
{
//standard font
$this->_out(‘/subtype /type1’);
if($name!=’symbol’ and $name!=’zapfdingbats’)
$this->_out(‘/encoding /winansiencoding’);
}
else
{
//additional font
$this->_out(‘/subtype /’.$font[‘type’]);
$this->_out(‘/firstchar 32’);
$this->_out(‘/lastchar 255’);
$this->_out(‘/widths ‘.($this->n+1).’ 0 r’);
$this->_out(‘/fontdescriptor ‘.($this->n+2).’ 0 r’);
if($font[‘enc’])
{
if(isset($font[‘diff’]))
$this->_out(‘/encoding ‘.($nf+$font[‘diff’]).’ 0 r’);
else
$this->_out(‘/encoding /winansiencoding’);
}
}
$this->_out(‘>>’);
$this->_out(‘endobj’);
if($font[‘type’]!=’core’)
{
//widths
$this->_newobj();
$cw=&$font[‘cw’];
$s='[‘;
for($i=32;$i<=255;$i++)
$s.=$cw[chr($i)].’ ‘;
$this->_out($s.’]’);
$this->_out(‘endobj’);
//descriptor
$this->_newobj();
$s='<</type /fontdescriptor /fontname /’.$name;
foreach($font[‘desc’] as $k=>$v)
$s.=’ /’.$k.’ ‘.$v;
$file=$font[‘file’];
if($file)
$s.=’ /fontfile’.($font[‘type’]==’type1′ ? ” : ‘2’).’ ‘.$this->fontfiles[$file][‘n’].’ 0 r’;
$this->_out($s.’>>’);
$this->_out(‘endobj’);
}
}
}
}

function _puttype0($font)
{
//type0
$this->_out(‘/subtype /type0’);
$this->_out(‘/basefont /’.$font[‘name’].’-‘.$font[‘cmap’]);
$this->_out(‘/encoding /’.$font[‘cmap’]);
$this->_out(‘/descendantfonts [‘.($this->n+1).’ 0 r]’);
$this->_out(‘>>’);
$this->_out(‘endobj’);
//cidfont
$this->_newobj();
$this->_out(‘<</type /font’);
$this->_out(‘/subtype /cidfonttype0’);
$this->_out(‘/basefont /’.$font[‘name’]);
$this->_out(‘/cidsysteminfo <</registry (adobe) /ordering (‘.$font[‘registry’][‘ordering’].’) /supplement ‘.$font[‘registry’][‘supplement’].’>>’);
$this->_out(‘/fontdescriptor ‘.($this->n+1).’ 0 r’);
$w=’/w [1 [‘;
foreach($font[‘cw’] as $w)
$w.=$w.’ ‘;
$this->_out($w.’]]’);
$this->_out(‘>>’);
$this->_out(‘endobj’);
//font descriptor
$this->_newobj();
$this->_out(‘<</type /fontdescriptor’);
$this->_out(‘/fontname /’.$font[‘name’]);
$this->_out(‘/flags 6’);
$this->_out(‘/fontbbox [0 0 1000 1000]’);
$this->_out(‘/italicangle 0’);
$this->_out(‘/ascent 1000’);
$this->_out(‘/descent 0’);
$this->_out(‘/capheight 1000’);
$this->_out(‘/stemv 10’);
$this->_out(‘>>’);
$this->_out(‘endobj’);
}
}
?>

将以上代码存为chinese.php即可引用。但用它只能得到一种字体。为了支持所有中文字体，可用ttf2pt1程序将truetype字体转化pt1字体，一个一个地转（具体方法在fpdf的教程中有详细说明）。为了支持其他中文字体，养分要修改上面的chinese.php，如下：

1: replace the following line in the addgbfont() method:

function addgbfont($family=’gb’,$name=’stsongstd-light-acro’)
{
$cw=$globals[‘gb_widths’];
// $name=’stsongstd-light-acro’;
$cmap=’gbkp-euc-h’;
……..

2: this is a sample.

<?php
require(‘chinese.php’);

$pdf=new pdf_chinese();
$pdf->addgbfont(‘simsun’,’宋体’);
$pdf->addgbfont(‘simhei’,’黑体’);
$pdf->addgbfont(‘simkai’,’楷体_gb2312′);
$pdf->addgbfont(‘sinfang’,’仿宋_gb2312”);
$pdf->open();
$pdf->addpage();
$pdf->setfont(‘simsun’,”,20);
$pdf->write(10,’简体中文汉字‘);
$pdf->setfont(‘simhei’,”,20);
$pdf->write(10,’简体中文汉字’);
$pdf->setfont(‘simkai’,”,20);
$pdf->write(10,’简体中文汉字‘);
$pdf->setfont(‘sinfang’,”,20);
$pdf->write(10,’简体中文汉字’);
$pdf->output();
?>