我一直在寻找一种方法来为我的pdf输出文件添加项目符号或列表编号。
我们说我有三行来自数据库：
Line 1
Line 2
Line 3
我想要的是fpdf读取每一行并在每一行前面放置一颗子弹。因此输出将如下所示：
• Line 1
• Line 2
• Line 3
我找到的最佳解决方案是下面的代码。它功能齐全（如果您已将fpdf上传到您的服务器）。问题是我无法弄清楚如何从文本行生成列表：
<?
define('FPDF_FONTPATH', 'font/');
include('fpdf/fpdf.php');
class PDF extends FPDF
{
var $wLine;
var $hLine;
var $Text;
var $border;
var $align;
var $fill;
var $Padding;
var $lPadding;
var $tPadding;
var $bPadding;
var $rPadding;
var $TagStyle;
var $Indent;
var $Space;
var $PileStyle;
var $Line2Print;
var $NextLineBegin;
var $TagName;
var $Delta;
var $StringLength;
var $LineLength;
var $wTextLine;
var $nbSpace;
var $Xini;
var $href;
var $TagHref;
function WriteTag($w, $h, $txt, $border=0, $align="J", $fill=false, $padding=0)
{
$this->wLine=$w;
$this->hLine=$h;
$this->Text=trim($txt);
$this->Text=preg_replace("/\n|\r|\t/","",$this->Text);
$this->border=$border;
$this->align=$align;
$this->fill=$fill;
$this->Padding=$padding;
$this->Xini=$this->GetX();
$this->href="";
$this->PileStyle=array();
$this->TagHref=array();
$this->LastLine=false;
$this->SetSpace();
$this->Padding();
$this->LineLength();
$this->BorderTop();
while($this->Text!="")
{
$this->MakeLine();
$this->PrintLine();
}
$this->BorderBottom();
}
function SetStyle($tag, $family, $style, $size, $color, $indent=-1)
{
$tag=trim($tag);
$this->TagStyle[$tag]['family']=trim($family);
$this->TagStyle[$tag]['style']=trim($style);
$this->TagStyle[$tag]['size']=trim($size);
$this->TagStyle[$tag]['color']=trim($color);
$this->TagStyle[$tag]['indent']=$indent;
}
function SetSpace()
{
$tag=$this->Parser($this->Text);
$this->FindStyle($tag[2],0);
$this->DoStyle(0);
$this->Space=$this->GetStringWidth(" ");
}
function Padding()
{
if(preg_match("/^.+,/",$this->Padding)) {
$tab=explode(",",$this->Padding);
$this->lPadding=$tab[0];
$this->tPadding=$tab[1];
if(isset($tab[2]))
$this->bPadding=$tab[2];
else
$this->bPadding=$this->tPadding;
if(isset($tab[3]))
$this->rPadding=$tab[3];
else
$this->rPadding=$this->lPadding;
}
else
{
$this->lPadding=$this->Padding;
$this->tPadding=$this->Padding;
$this->bPadding=$this->Padding;
$this->rPadding=$this->Padding;
}
if($this->tPadding<$this->LineWidth)
$this->tPadding=$this->LineWidth;
}
function LineLength()
{
if($this->wLine==0)
$this->wLine=$this->w - $this->Xini - $this->rMargin;
$this->wTextLine = $this->wLine - $this->lPadding - $this->rPadding;
}
function BorderTop()
{
$border=0;
if($this->border==1)
$border="TLR";
$this->Cell($this->wLine,$this->tPadding,"",$border,0,'C',$this->fill);
$y=$this->GetY()+$this->tPadding;
$this->SetXY($this->Xini,$y);
}
function BorderBottom()
{
$border=0;
if($this->border==1)
$border="BLR";
$this->Cell($this->wLine,$this->bPadding,"",$border,0,'C',$this->fill);
}
function DoStyle($tag)
{
$tag=trim($tag);
$this->SetFont($this->TagStyle[$tag]['family'],
$this->TagStyle[$tag]['style'],
$this->TagStyle[$tag]['size']);
$tab=explode(",",$this->TagStyle[$tag]['color']);
if(count($tab)==1)
$this->SetTextColor($tab[0]);
else
$this->SetTextColor($tab[0],$tab[1],$tab[2]);
}
function FindStyle($tag, $ind)
{
$tag=trim($tag);
if($this->TagStyle[$tag]['family']!="")
$family=$this->TagStyle[$tag]['family'];
else
{
reset($this->PileStyle);
while(list($k,$val)=each($this->PileStyle))
{
$val=trim($val);
if($this->TagStyle[$val]['family']!="") {
$family=$this->TagStyle[$val]['family'];
break;
}
}
}
$style="";
$style1=strtoupper($this->TagStyle[$tag]['style']);
if($style1!="N")
{
$bold=false;
$italic=false;
$underline=false;
reset($this->PileStyle);
while(list($k,$val)=each($this->PileStyle))
{
$val=trim($val);
$style1=strtoupper($this->TagStyle[$val]['style']);
if($style1=="N")
break;
else
{
if(strpos($style1,"B")!==false)
$bold=true;
if(strpos($style1,"I")!==false)
$italic=true;
if(strpos($style1,"U")!==false)
$underline=true;
}
}
if($bold)
$style.="B";
if($italic)
$style.="I";
if($underline)
$style.="U";
}
if($this->TagStyle[$tag]['size']!=0)
$size=$this->TagStyle[$tag]['size'];
else
{
reset($this->PileStyle);
while(list($k,$val)=each($this->PileStyle))
{
$val=trim($val);
if($this->TagStyle[$val]['size']!=0) {
$size=$this->TagStyle[$val]['size'];
break;
}
}
}
if($this->TagStyle[$tag]['color']!="")
$color=$this->TagStyle[$tag]['color'];
else
{
reset($this->PileStyle);
while(list($k,$val)=each($this->PileStyle))
{
$val=trim($val);
if($this->TagStyle[$val]['color']!="") {
$color=$this->TagStyle[$val]['color'];
break;
}
}
}
$this->TagStyle[$ind]['family']=$family;
$this->TagStyle[$ind]['style']=$style;
$this->TagStyle[$ind]['size']=$size;
$this->TagStyle[$ind]['color']=$color;
$this->TagStyle[$ind]['indent']=$this->TagStyle[$tag]['indent'];
}
function Parser($text)
{
$tab=array();
if(preg_match("|^(</([^>]+)>)|",$text,$regs)) {
$tab[1]="c";
$tab[2]=trim($regs[2]);
}
else if(preg_match("|^(<([^>]+)>)|",$text,$regs)) {
$regs[2]=preg_replace("/^a/","a ",$regs[2]);
$tab[1]="o";
$tab[2]=trim($regs[2]);
if(preg_match("/(.+) (.+)='(.+)'/",$regs[2])) {
$tab1=preg_split("/ +/",$regs[2]);
$tab[2]=trim($tab1[0]);
while(list($i,$couple)=each($tab1))
{
if($i>0) {
$tab2=explode("=",$couple);
$tab2[0]=trim($tab2[0]);
$tab2[1]=trim($tab2[1]);
$end=strlen($tab2[1])-2;
$tab[$tab2[0]]=substr($tab2[1],1,$end);
}
}
}
}
// Espace
else if(preg_match("/^( )/",$text,$regs)) {
$tab[1]="s";
$tab[2]=' ';
}
// Texte
else if(preg_match("/^([^< ]+)/",$text,$regs)) {
$tab[1]="t";
$tab[2]=trim($regs[1]);
}
// Elagage
$begin=strlen($regs[1]);
$end=strlen($text);
$text=substr($text, $begin, $end);
$tab[0]=$text;
return $tab; // 0 : $text; 1 : type de balise (tag); 2 : élément
}
function MakeLine()
{
$this->Text.=" ";
$this->LineLength=array();
$this->TagHref=array();
$Length=0;
$this->nbSpace=0;
$i=$this->BeginLine();
$this->TagName=array();
if($i==0) {
$Length=$this->StringLength[0];
$this->TagName[0]=1;
$this->TagHref[0]=$this->href;
}
while($Length<$this->wTextLine)
{
$tab=$this->Parser($this->Text);
$this->Text=$tab[0];
if($this->Text=="") {
$this->LastLine=true;
break;
}
if($tab[1]=="o") {
array_unshift($this->PileStyle,$tab[2]);
$this->FindStyle($this->PileStyle[0],$i+1);
$this->DoStyle($i+1);
$this->TagName[$i+1]=1;
if($this->TagStyle[$tab[2]]['indent']!=-1) {
$Length+=$this->TagStyle[$tab[2]]['indent'];
$this->Indent=$this->TagStyle[$tab[2]]['indent'];
}
if($tab[2]=="a")
$this->href=$tab['href'];
}
if($tab[1]=="c") {
array_shift($this->PileStyle);
if(isset($this->PileStyle[0]))
{
$this->FindStyle($this->PileStyle[0],$i+1);
$this->DoStyle($i+1);
}
$this->TagName[$i+1]=1;
if($this->TagStyle[$tab[2]]['indent']!=-1) {
$this->LastLine=true;
$this->Text=trim($this->Text);
break;
}
if($tab[2]=="a")
$this->href="";
}
if($tab[1]=="s") {
$i++;
$Length+=$this->Space;
$this->Line2Print[$i]="";
if($this->href!="")
$this->TagHref[$i]=$this->href;
}
if($tab[1]=="t") {
$i++;
$this->StringLength[$i]=$this->GetStringWidth($tab[2]);
$Length+=$this->StringLength[$i];
$this->LineLength[$i]=$Length;
$this->Line2Print[$i]=$tab[2];
if($this->href!="")
$this->TagHref[$i]=$this->href;
}
}
trim($this->Text);
if($Length>$this->wTextLine || $this->LastLine==true)
$this->EndLine();
}
function BeginLine()
{
$this->Line2Print=array();
$this->StringLength=array();
if(isset($this->PileStyle[0]))
{
$this->FindStyle($this->PileStyle[0],0);
$this->DoStyle(0);
}
if(count($this->NextLineBegin)>0) {
$this->Line2Print[0]=$this->NextLineBegin['text'];
$this->StringLength[0]=$this->NextLineBegin['length'];
$this->NextLineBegin=array();
$i=0;
}
else {
preg_match("/^(( *(<([^>]+)>)* *)*)(.*)/",$this->Text,$regs);
$regs[1]=str_replace(" ", "", $regs[1]);
$this->Text=$regs[1].$regs[5];
$i=-1;
}
return $i;
}
function EndLine()
{
if(end($this->Line2Print)!="" && $this->LastLine==false) {
$this->NextLineBegin['text']=array_pop($this->Line2Print);
$this->NextLineBegin['length']=end($this->StringLength);
array_pop($this->LineLength);
}
while(end($this->Line2Print)==="")
array_pop($this->Line2Print);
$this->Delta=$this->wTextLine-end($this->LineLength);
$this->nbSpace=0;
for($i=0; $i<count($this->Line2Print); $i++) {
if($this->Line2Print[$i]=="")
$this->nbSpace++;
}
}
function PrintLine()
{
$border=0;
if($this->border==1)
$border="LR";
$this->Cell($this->wLine,$this->hLine,"",$border,0,'C',$this->fill);
$y=$this->GetY();
$this->SetXY($this->Xini+$this->lPadding,$y);
if($this->Indent!=-1) {
if($this->Indent!=0)
$this->Cell($this->Indent,$this->hLine);
$this->Indent=-1;
}
$space=$this->LineAlign();
$this->DoStyle(0);
for($i=0; $i<count($this->Line2Print); $i++)
{
if(isset($this->TagName[$i]))
$this->DoStyle($i);
if(isset($this->TagHref[$i]))
$href=$this->TagHref[$i];
else
$href='';
if($this->Line2Print[$i]=="")
$this->Cell($space,$this->hLine," ",0,0,'C',false,$href);
else
$this->Cell($this->StringLength[$i],$this->hLine,$this->Line2Print[$i],0,0,'C',false,$href);
}
$this->LineBreak();
if($this->LastLine && $this->Text!="")
$this->EndParagraph();
$this->LastLine=false;
}
function LineAlign()
{
$space=$this->Space;
if($this->align=="J") {
if($this->nbSpace!=0)
$space=$this->Space + ($this->Delta/$this->nbSpace);
if($this->LastLine)
$space=$this->Space;
}
if($this->align=="R")
$this->Cell($this->Delta,$this->hLine);
if($this->align=="C")
$this->Cell($this->Delta/2,$this->hLine);
return $space;
}
function LineBreak()
{
$x=$this->Xini;
$y=$this->GetY()+$this->hLine;
$this->SetXY($x,$y);
}
function EndParagraph()
{
$border=0;
if($this->border==1)
$border="LR";
$this->Cell($this->wLine,$this->hLine/2,"",$border,0,'C',$this->fill);
$x=$this->Xini;
$y=$this->GetY()+$this->hLine/2;
$this->SetXY($x,$y);
}
// end add
//bullet
function MultiCellBltArray($w, $h, $blt_array, $border=0, $align='J', $fill=0)
{
if (!is_array($blt_array))
{
die('MultiCellBltArray requires an array with the following keys: bullet, margin, text, indent, spacer');
exit;
}
//Save x
$bak_x = $this->x;
for ($i=0; $i<sizeof($blt_array['text']); $i++)
{
//Get bullet width including margin
$blt_width = $this->GetStringWidth($blt_array['bullet'] . $blt_array['margin'])+$this->cMargin*2;
// SetX
$this->SetX($bak_x);
//Output indent
if ($blt_array['indent'] > 0)
$this->Cell($blt_array['indent']);
//Output bullet
$this->Cell($blt_width, $h, $blt_array['bullet'] . $blt_array['margin'], 0, '', $fill);
//Output text
$this->MultiCell($w-$blt_width, $h, $blt_array['text'][$i], $border, $align, $fill);
//Insert a spacer between items if not the last item
if ($i != sizeof($blt_array['text'])-1)
$this->Ln($blt_array['spacer']);
//Increment bullet if it's a number
if (is_numeric($blt_array['bullet']))
$blt_array['bullet']++;
}
//Restore x
$this->x = $bak_x;
}
}
$pdf=new PDF();
$pdf->AliasNbPages();
$pdf->AddPage();
$pdf->SetFont('Times', '', 12);
$column_width = $pdf->w-30;
$sample_text = 'This is sample text.\n This is a new line of text';
$test1 = array();
$test1['bullet'] = chr(149);
$test1['margin'] = ' ';
$test1['indent'] = 0;
$test1['spacer'] = 0;
$test1['text'] = array();
for ($i=0; $i<2; $i++)
{
$test1['text'][$i] = $sample_text;
}
$pdf->SetX(10);
$pdf->MultiCellBltArray($column_width-$pdf->x, 6, $test1);
$pdf->Ln(10);
$pdf->Output();
?>
问题是输出如下：
• This is bulleted text.\n This is a new line of text
• This is bulleted text.\n This is a new line of text
当我希望它看起来像：
• This is bulleted text.
• This is a new line of text
这行代码似乎以复制上面的$ sample_text的方式行事：
for ($i=0; $i<2; $i++)
{
$test1['text'][$i] = $sample_text;
}
你在哪里改变＆＃39; $ i＆lt; 2＆＃39;让我们说＆＃39; $ i＆lt; 4＆＃39;，结果将是：
• This is bulleted text.\n This is a new line of text
• This is bulleted text.\n This is a new line of text
• This is bulleted text.\n This is a new line of text
• This is bulleted text.\n This is a new line of text
但是如果我有一组四个不同的变量，我会将它们放在示例文本文件中，然后让代码遍历它，在每个项目前面留下一颗子弹：
$sample_text = "item 1 \n item 2 \n item 3 \n item 4";
结果将是：
• item 1
• item 2
• item 3
• item 4
答案 0 :(得分：4)
您可以使用PHP的chr()功能。
//-------------
// bullet() - shows a bullet point (in current font)
//-------------
//
// @author munkywrench development
// @since 30/04/05
// @url http://munkywrench.co.nz
//
// @param Int $cellwidth - Sets width of indent
//--------------
function bullet($cellwidth = '0') {
//bullet point is chr(127)
$this->Cell($cellwidth, 5, chr(127), 0, 0, 'R');
}
答案 1 :(得分：1)
\n在单引号内打印\n pdf与否，如果您希望将其作为实际换行符中断，则需要使用双引号。
还要确保它需要文本而不是html