我在将表单输入写入PDF时遇到了一些问题，它会出现错误;
致命错误：无法重新声明第24行/home/tomjk/public_html/release/WriteHTML.php中的hex2dec（）（之前在/home/tomjk/public_html/release/WriteHTML.php:12中声明）
我已经查看了php文件，它看起来非常好......我一直在关注PHP帮派的教程，似乎没有其他人遇到过这个问题。
http://www.phpgang.com/how-to-convert-html-to-pdf-in-php-with-fpdf_447.html
fpdf.php
<?php
require('WriteHTML.php');
include('config.php');
$query = "SELECT * FROM `release` ORDER BY `id` ";
$result = mysqli_query($con, $query);
$row = mysqli_fetch_assoc($result);
$pdf=new PDF_HTML();
$pdf->AliasNbPages();
$pdf->SetAutoPageBreak(true, 15);
$pdf->AddPage();
$pdf->Image('RR_logo.png',18,13,33);
$pdf->SetFont('Arial','B',14);
$pdf->WriteHTML('<para><h1>PHPGang Programming Blog, Tutorials, jQuery, Ajax, PHP, MySQL and Demos</h1><br>
Website: <u>www.phpgang.com</u></para><br><br>How to Convert HTML to PDF with fpdf example');
$pdf->SetFont('Arial','B',7);
$htmlTable='Talent Details<hr />
Talent name '. $POST['name'] .' (hereafter referred to as “Talent”)<br />
Email '. $POST['email'] .' <br />
Phone no '. $POST['phone'] .' <br />
Producers Details<hr />
Producer’s name '. $row['producers'] .' (hereafter referred to as “Producer”)<br />
Production Company '. $row['release'] .'<br />
Title '. $row['company'] .'(all hereafter referred to as “Production”)<br />
';
$pdf->WriteHTML2("<br><br><br>$htmlTable");
$pdf->SetFont('Arial','B',6);
$pdf->Output();
?>
WriteHTML.php
<?php
//HTML2PDF by Clément Lavoillotte
//ac.lavoillotte@noos.fr
//webmaster@streetpc.tk
//http://www.streetpc.tk
require('fpdf.php');
//function hex2dec
//returns an associative array (keys: R,G,B) from
//a hex html code (e.g. #3FE5AA)
function hex2dec($couleur = "#000000"){
$R = substr($couleur, 1, 2);
$rouge = hexdec($R);
$V = substr($couleur, 3, 2);
$vert = hexdec($V);
$B = substr($couleur, 5, 2);
$bleu = hexdec($B);
$tbl_couleur = array();
$tbl_couleur['R']=$rouge;
$tbl_couleur['V']=$vert;
$tbl_couleur['B']=$bleu;
return $tbl_couleur;
}
//conversion pixel -> millimeter at 72 dpi
function px2mm($px){
return $px*25.4/72;
}
function txtentities($html){
$trans = get_html_translation_table(HTML_ENTITIES);
$trans = array_flip($trans);
return strtr($html, $trans);
}
////////////////////////////////////
class PDF_HTML extends FPDF
{
//variables of html parser
var $B;
var $I;
var $U;
var $HREF;
var $fontList;
var $issetfont;
var $issetcolor;
function PDF_HTML($orientation='P', $unit='mm', $format='A4')
{
//Call parent constructor
$this->FPDF($orientation,$unit,$format);
//Initialization
$this->B=0;
$this->I=0;
$this->U=0;
$this->HREF='';
$this->fontlist=array('arial', 'times', 'courier', 'helvetica', 'symbol');
$this->issetfont=false;
$this->issetcolor=false;
}
function WriteHTML($html)
{
//HTML parser
$html=strip_tags($html,"<b><u><i><a><img><p><br><strong><em><font><tr><blockquote>"); //supprime tous les tags sauf ceux reconnus
$html=str_replace("\n",' ',$html); //remplace retour à la ligne par un espace
$a=preg_split('/<(.*)>/U',$html,-1,PREG_SPLIT_DELIM_CAPTURE); //éclate la chaîne avec les balises
foreach($a as $i=>$e)
{
if($i%2==0)
{
//Text
if($this->HREF)
$this->PutLink($this->HREF,$e);
else
$this->Write(5,stripslashes(txtentities($e)));
}
else
{
//Tag
if($e[0]=='/')
$this->CloseTag(strtoupper(substr($e,1)));
else
{
//Extract attributes
$a2=explode(' ',$e);
$tag=strtoupper(array_shift($a2));
$attr=array();
foreach($a2 as $v)
{
if(preg_match('/([^=]*)=["\']?([^"\']*)/',$v,$a3))
$attr[strtoupper($a3[1])]=$a3[2];
}
$this->OpenTag($tag,$attr);
}
}
}
}
function OpenTag($tag, $attr)
{
//Opening tag
switch($tag){
case 'STRONG':
$this->SetStyle('B',true);
break;
case 'EM':
$this->SetStyle('I',true);
break;
case 'B':
case 'I':
case 'U':
$this->SetStyle($tag,true);
break;
case 'A':
$this->HREF=$attr['HREF'];
break;
case 'IMG':
if(isset($attr['SRC']) && (isset($attr['WIDTH']) || isset($attr['HEIGHT']))) {
if(!isset($attr['WIDTH']))
$attr['WIDTH'] = 0;
if(!isset($attr['HEIGHT']))
$attr['HEIGHT'] = 0;
$this->Image($attr['SRC'], $this->GetX(), $this->GetY(), px2mm($attr['WIDTH']), px2mm($attr['HEIGHT']));
}
break;
case 'TR':
case 'BLOCKQUOTE':
case 'BR':
$this->Ln(5);
break;
case 'P':
$this->Ln(10);
break;
case 'FONT':
if (isset($attr['COLOR']) && $attr['COLOR']!='') {
$coul=hex2dec($attr['COLOR']);
$this->SetTextColor($coul['R'],$coul['V'],$coul['B']);
$this->issetcolor=true;
}
if (isset($attr['FACE']) && in_array(strtolower($attr['FACE']), $this->fontlist)) {
$this->SetFont(strtolower($attr['FACE']));
$this->issetfont=true;
}
break;
}
}
function CloseTag($tag)
{
//Closing tag
if($tag=='STRONG')
$tag='B';
if($tag=='EM')
$tag='I';
if($tag=='B' || $tag=='I' || $tag=='U')
$this->SetStyle($tag,false);
if($tag=='A')
$this->HREF='';
if($tag=='FONT'){
if ($this->issetcolor==true) {
$this->SetTextColor(0);
}
if ($this->issetfont) {
$this->SetFont('arial');
$this->issetfont=false;
}
}
}
function SetStyle($tag, $enable)
{
//Modify style and select corresponding font
$this->$tag+=($enable ? 1 : -1);
$style='';
foreach(array('B','I','U') as $s)
{
if($this->$s>0)
$style.=$s;
}
$this->SetFont('',$style);
}
function PutLink($URL, $txt)
{
//Put a hyperlink
$this->SetTextColor(0,0,255);
$this->SetStyle('U',true);
$this->Write(5,$txt,$URL);
$this->SetStyle('U',false);
$this->SetTextColor(0);
}
}//end of class
?>
答案 0 :(得分：0)
认为你有问题因为fpdf.php需要WriteHTML.php而WriteHTML.php需要fpdf.php。所以你有一个依赖循环。
您应该尝试更改此内容。