我正在尝试使用 convertapi.com 转换 Rest Api 和 php 将 PDF 文件转换为 JPEG，但它一直给出异常，说返回的内容不是 jpeg。您可以在http://www.luova.fi/word2pdf/pdf2jpg.php查看我的代码 我已经在论坛上查看过，但找不到任何问题的答案，任何人都有任何想法。谢谢！（imagemagick 和 gs 是不可能的）
大卫
<?php
error_reporting(NULL);
ini_set('display_errors', '0');
function ParseHeader($header='')
{
$resArr = array();
$headerArr = explode("\n",$header);
foreach ($headerArr as $key => $value) {
$tmpArr=explode(": ",$value);
if (count($tmpArr)<1) continue;
$resArr = array_merge($resArr, array($tmpArr[0] => count($tmpArr) < 2 ? "" : $tmpArr[1]));
}
return $resArr;
}
function CallToApi($fileToConvert, $pathToSaveOutputFile, $apiKey, &$message)
{
try
{
$rand=time();
$fileName = $rand."MyFile.jpg";
$apiKey = "XXXXXXX";
$postdata = array('OutputFileName' => 'MyFile.jpg', 'ApiKey' => $apiKey, 'file'=>"@".$fileToConvert);
$ch = curl_init("http://do.convertapi.com/Pdf2Image");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postdata);
$result = curl_exec($ch);
$headers = curl_getinfo($ch);
$header=ParseHeader(substr($result,0,$headers["header_size"]));
$body=substr($result, $headers["header_size"]);
curl_close($ch);
if ( 0 < $headers['http_code'] && $headers['http_code'] < 400 )
{
// Check for Result = true
if (in_array('Result',array_keys($header)) ? !$header['Result']=="True" : true)
{
$message = "Something went wrong with request, did not reach ConvertApi service.<br />";
return false;
}
// Check content type
if ($headers['content_type']<>"image/jpeg")
{
$message = "Exception Message : returned content is not jpeg file.<br />";
return false;
}
$fp = fopen($pathToSaveOutputFile.$fileName, "wbx");
fwrite($fp, $body);
$message = "The conversion was successful! The pdf file $fileToConvert converted to JPEG and saved at $pathToSaveOutputFile$fileName";
return true;
}
else
{
$message = "Exception Message : ".$result .".<br />Status Code :".$headers['http_code'].".<br />";
return false;
}
}
catch (Exception $e)
{
$message = "Exception Message :".$e.Message."</br>";
return false;
}
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>
Conversion PDF to JPEG
</title>
</head>
<body>
<div style="width: 600px; margin: auto;">
<h3>Conversion example of PDF to JPEG using Rest API <a href="http://www.convertapi.com" target="_blanks">http://www.convertapi.com</a></h3>
<form method="post" action="" id="word2pdf_form" enctype="multipart/form-data">
Please choose PDF document(pdf file) from your computer
<br />
<input type="file" name="FileUpload" id="FileUpload" style="width:600px;">
<br />
<input name="txtApiKey" type="hidden" id="txtApiKey" value="" style="width:600px;">
<br />
<br />
<div style="text-align: center">
<input type="submit" name="btnConvert" value="Convert" id="btnConvert">
</div>
</form>
<br>
<?php
if (isset($_FILES["FileUpload"]['name'])&&$_FILES['FileUpload']['size']>0&&$_FILES['FileUpload']['error']==0)
{
$physicalPath = dirname(__FILE__)."/files/";
if (!file_exists($physicalPath)) {
mkdir($physicalPath,0777);
}
$uploadedFile = $physicalPath.$_FILES["FileUpload"]['name'];
$apiKey = $_REQUEST["txtApiKey"];
if (!move_uploaded_file($_FILES["FileUpload"]["tmp_name"], $uploadedFile)) die("CANNOT MOVE {$_FILES['FileUpload']['name']}" . PHP_EOL);
$message = "";
chmod($uploadedFile,0755);
$result = CallToApi($uploadedFile, $physicalPath, $apiKey, &$message);
echo "<span id='lblStatus'".($result ? "" : "style='color:red'")." >" .$message."</span>";
}
else
{
echo in_array("btnConvert", $_REQUEST) ? "<span id='lblStatus' style='color:Red;'> Please select PDF document!</span>":"<span id='lblStatus'>Please select a PDF document and click Convert button.</span>";
}
?>
</div>
</body>
</html>