我正在尝试在 symfony2 中使用 FPDI 和 TCPDF。
我可以单独使用 TCPDF 没有任何问题。但是当我尝试使用 FPDI 时，我遇到了错误。
在我的 composer.json 我放了以下内容：
"autoload": {
"psr-0": { "": "src/"
},
"classmap": ["vendor/tcpdf/tcpdf.php","vendor/fpdi/fpdi.php"]
},
然后在控制器中我可以实例化一个 TCPDF 类
$tcpdf = new \TCPDF();
但是当我尝试实例化一个 FPDI 实例时
$fpdi = new \FPDI();
当我尝试访问路由时，Symfony 会抛出以下错误。
*FatalErrorException：错误：在 C:\xampp\htdocs\Consulta\vendor\fpdi\fpdi2tcpdf_bridge.php 中未找到类 'Symfony\Component\Debug\Exception\ContextErrorException' C:\xampp\htdocs\Consulta\vendor\ 中的第 169 行fpdi\fpdi2tcpdf_bridge.php 第 169 行*
有谁知道如何解决这个问题？
我正在添加 fpdi2tcpdf_bridge.php 的内容
<?php
//
// FPDI - Version 1.4.4
//
// Copyright 2004-2013 Setasign - Jan Slabon
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
/**
* This class is used as a bridge between TCPDF and FPDI
* and will create the possibility to use both FPDF and TCPDF
* via one FPDI version.
*
* We'll simply remap TCPDF to FPDF again.
*
* It'll be loaded and extended by FPDF_TPL.
*/
class FPDF extends TCPDF {
function _putstream($s) {
$this->_out($this->_getstream($s));
}
function _getxobjectdict() {
$out = parent::_getxobjectdict();
if (count($this->tpls)) {
foreach($this->tpls as $tplidx => $tpl) {
$out .= sprintf('%s%d %d 0 R', $this->tplprefix, $tplidx, $tpl['n']);
}
}
return $out;
}
/**
* Encryption of imported data by FPDI
*
* @param array $value
*/
function pdf_write_value(&$value) {
switch ($value[0]) {
case PDF_TYPE_STRING:
if ($this->encrypted) {
$value[1] = $this->_unescape($value[1]);
$value[1] = $this->_encrypt_data($this->_current_obj_id, $value[1]);
$value[1] = TCPDF_STATIC::_escape($value[1]);
}
break;
case PDF_TYPE_STREAM:
if ($this->encrypted) {
$value[2][1] = $this->_encrypt_data($this->_current_obj_id, $value[2][1]);
$value[1][1]['/Length'] = array(
PDF_TYPE_NUMERIC,
strlen($value[2][1])
);
}
break;
case PDF_TYPE_HEX:
if ($this->encrypted) {
$value[1] = $this->hex2str($value[1]);
$value[1] = $this->_encrypt_data($this->_current_obj_id, $value[1]);
// remake hexstring of encrypted string
$value[1] = $this->str2hex($value[1]);
}
break;
}
}
/**
* Unescapes a PDF string
*
* @param string $s
* @return string
*/
function _unescape($s) {
$out = '';
for ($count = 0, $n = strlen($s); $count < $n; $count++) {
if ($s[$count] != '\\' || $count == $n-1) {
$out .= $s[$count];
} else {
switch ($s[++$count]) {
case ')':
case '(':
case '\\':
$out .= $s[$count];
break;
case 'f':
$out .= chr(0x0C);
break;
case 'b':
$out .= chr(0x08);
break;
case 't':
$out .= chr(0x09);
break;
case 'r':
$out .= chr(0x0D);
break;
case 'n':
$out .= chr(0x0A);
break;
case "\r":
if ($count != $n-1 && $s[$count+1] == "\n")
$count++;
break;
case "\n":
break;
default:
// Octal-Values
if (ord($s[$count]) >= ord('0') &&
ord($s[$count]) <= ord('9')) {
$oct = ''. $s[$count];
if (ord($s[$count+1]) >= ord('0') &&
ord($s[$count+1]) <= ord('9')) {
$oct .= $s[++$count];
if (ord($s[$count+1]) >= ord('0') &&
ord($s[$count+1]) <= ord('9')) {
$oct .= $s[++$count];
}
}
$out .= chr(octdec($oct));
} else {
$out .= $s[$count];
}
}
}
}
return $out;
}
/**
* Hexadecimal to string
*
* @param string $hex
* @return string
*/
function hex2str($hex) {
return pack('H*', str_replace(array("\r", "\n", ' '), '', $hex));
}
/**
* String to hexadecimal
*
* @param string $str
* @return string
*/
function str2hex($str) {
return current(unpack('H*', $str));
}
}