我已经为页眉和页脚数据苦苦挣扎了一段时间，觉得是时候在论坛上提问了。

我想做的是决定是否添加页面是否应添加页眉/页脚。所以在代码方面我想在添加页面时将页眉/页脚设置为打开或关闭。

我试图通过设置一个额外的参数 $setFooterHeader 来操纵函数 AddPage，该参数默认设置为 true。然后每当我执行 addPage('','',false); 时尝试将此参数设置为 false；但由于某种原因它忽略了它，我不明白为什么。

如果我在函数本身中将参数的默认值设置为 false，它就像一个魅力，但当我尝试在我的脚本中这样做并将其设置为参数时，它完全忽略它。

这是 fpdf.php 文件的代码片段(函数 addPage)

function AddPage($orientation='', $size='', $setHeaderFooter=true) 
{ 
     // Start a new page 
     if($this->state==0) 
     $this->Open(); 
     $family = $this->FontFamily; 
     $style = $this->FontStyle.($this->underline ? 'U' : ''); 
     $fontsize = $this->FontSizePt; 
     $lw = $this->LineWidth; 
     $dc = $this->DrawColor; 
     $fc = $this->FillColor; 
     $tc = $this->TextColor; 
     $cf = $this->ColorFlag; 
     if($this->page>0) 
     { 
         // Page footer 
         if ($setHeaderFooter == true) 
         { 
             $this->InFooter = true; 
             $this->Footer(); 
             $this->InFooter = false; 
             // Close page 
             $this->_endpage(); 
         } 
      } 
     // Start new page 
     $this->_beginpage($orientation,$size,$setHeaderFooter); 
     // Set line cap style to square 
     $this->_out('2 J'); 
     // Set line width 
     $this->LineWidth = $lw; 
     $this->_out(sprintf('%.2F w',$lw*$this->k)); 
     // Set font 
     if($family) 
     $this->SetFont($family,$style,$fontsize); 
     // Set colors 
     $this->DrawColor = $dc; 
     if($dc!='0 G') 
     $this->_out($dc); 
     $this->FillColor = $fc; 
     if($fc!='0 g') 
     $this->_out($fc); 
     $this->TextColor = $tc; 
     $this->ColorFlag = $cf; 
     // Page header 
     if ($setHeaderFooter == true) 
     { 
         $this->InHeader = true; 
         $this->Header(); 
         $this->InHeader = false; 
     } 
     // Restore line width 
     if($this->LineWidth!=$lw) 
     { 
         $this->LineWidth = $lw; 
         $this->_out(sprintf('%.2F w',$lw*$this->k)); 
     } 
     // Restore font 
     if($family) 
     $this->SetFont($family,$style,$fontsize); 
     // Restore colors 
     if($this->DrawColor!=$dc) 
     { 
         $this->DrawColor = $dc; 
         $this->_out($dc); 
     } 
     if($this->FillColor!=$fc) 
     { 
         $this->FillColor = $fc; 
         $this->_out($fc); 
     } 
     $this->TextColor = $tc; 
     $this->ColorFlag = $cf; 
} 

下面是我使用 FPDF 的 PHP 脚本的代码片段

/** PHP FPDF */ 
require_once 'classes/FPDF/fpdf.php'; 
require_once 'classes/FPDI/fpdi.php'; 

class PDF extends FPDI 
{ 
     function Header() 
     { 
         $this->SetFont( 'Arial', 'B', 18 ); //set font to Arial, Bold, and 16 Size 

         //create heading with params 
         //0 - 100% width 
         //9 height 
         //"Page Heading" - With this text 
         //1 - border around it, and center aligned 
         //1 - Move pionter to new line after writing this heading 
         //'C' - center aligned 
         $this->Cell( 0, 9, 'Page Heading', 1, 1, 'C' ); 

         $this->ln( 5 ); 
     } 

     function Footer() 
     { 
         //move pionter at the bottom of the page 
         $this->SetY( -15 ); 

         //set font to Arial, Bold, size 10 
         $this->SetFont( 'Arial', 'B', 10 ); 

         //set font color to blue 
         $this->SetTextColor( 52, 98, 185 ); 

         $this->Cell( 0, 10, 'Footer Text', 0, 0, 'L' ); 

         //set font color to gray 
         $this->SetTextColor( 150, 150, 150 ); 

         //write Page No 
         $this->Cell( 0, 10, 'Page No: ' . $this->PageNo(), 0, 0, 'R' ); 
     } 
 } 

// Create new PDF object 
$pdf = new PDF('P','mm','A4'); 
$pdf->addPage('','',false); 

// Output pdf file 
$pdf->Output('test.pdf','D'); 

非常感谢您的帮助!!

最佳答案

我通过在类外设置一个标志并在页眉和页脚函数中使用这个标志解决了这个问题

修复在页面部分，而不是在 addPage 函数中

就在执行 $pdf->addPage 之前，您将标志设置为 addPage 自动调用页眉和页脚函数。

这是正确的代码(使用 FPDF 的 PHP 脚本片段)

/** PHP FPDF */ 
require_once 'classes/FPDF/fpdf.php'; 
require_once 'classes/FPDI/fpdi.php'; 

class PDF extends FPDI 
{ 
     function Header() 
     { 
        if ($this->header == 1)
        {
            $this->SetFont( 'Arial', 'B', 18 ); //set font to Arial, Bold, and 16 Size 

            //create heading with params 
            //0 - 100% width 
            //9 height 
            //"Page Heading" - With this text 
            //1 - border around it, and center aligned 
            //1 - Move pionter to new line after writing this heading 
            //'C' - center aligned 
            $this->Cell( 0, 9, 'Page Heading', 1, 1, 'C' ); 

            $this->ln( 5 ); 
        }
     } 

     function Footer() 
     {
        if ($this->footer == 1)
        {
             //move pionter at the bottom of the page 
             $this->SetY( -15 ); 

             //set font to Arial, Bold, size 10 
             $this->SetFont( 'Arial', 'B', 10 ); 

             //set font color to blue 
             $this->SetTextColor( 52, 98, 185 ); 

             $this->Cell( 0, 10, 'Footer Text', 0, 0, 'L' ); 

             //set font color to gray 
             $this->SetTextColor( 150, 150, 150 ); 

             //write Page No 
             $this->Cell( 0, 10, 'Page No: ' . $this->PageNo(), 0, 0, 'R' ); 
        }
     } 
 } 

// Create new PDF object 
$pdf = new PDF('P','mm','A4'); 

$pdf->header = 0;
$pdf->footer = 0;
$pdf->addPage('','',false); 

// Output pdf file 
$pdf->Output('test.pdf','D'); 

关于php - FPDF:决定​​何时设置页眉/页脚数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/9454431/