How to create PDF Chinese documents using PHP

How to create PDF Chinese documents using PHP

I am using FPDF (www.fpdf.org). After downloading the fpdf class library, I need to use the following Chinese class library to support Chinese, but only one Chinese font can be used (Chinese imitation Song Dynasty). I've been worrying about this for a long time, and now I finally figured it out. Convert TrueType fonts to pt1 fonts using:

The following is a Chinese class library found on FPDF:
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('<>');
$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');
$this->_out('< if(substr($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;
$this->_out('< if($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();
$s='< foreach($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('< $this->_out('/Subtype /CIDFontType0');
$this->_out('/BaseFont /'.$font['name']);
$this->_out('/CIDSystemInfo <>');
$this->_out('/FontDescriptor '.($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('< $this->_out('/FontName /'.$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');
}
}
?>

Save the above code as chinese.php for reference. But you can only get one font with it. In order to support all Chinese fonts, the ttf2pt1 program can be used to convert TrueType fonts into pt1 fonts one by one (the specific method is detailed in the FPDF tutorial). In order to support other Chinese fonts, you need to modify the above chinese.php as follows:

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.

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','Imitation Song Dynasty_GB2312'');
$pdf->Open();
$pdf->AddPage();
$pdf->SetFont('simsun','',20);
$pdf->Write(10,'Simplified Chinese characters');
$pdf->SetFont('simhei','',20);
$pdf->Write(10,'Simplified Chinese characters');
$pdf->SetFont('simkai','',20);
$pdf->Write(10,'Simplified Chinese characters');
$pdf->SetFont('sinfang','',20);
$pdf->Write(10,'Simplified Chinese characters');
$pdf->Output();
?>

​

The above introduces how to use PHP to create PDF Chinese documents, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.