遇到未捕获的异常类型:ImagickException消息:未能读取Codeigner中的文件

Question

下面的php-pdf-to-image代码在codeigniter框架中使用imagick在控制器中出现问题，imagick无法读取我的文件pdf。

错误：

[codeigniter]遇到未捕获的异常类型：ImagickException消息：未能读取codeigniter中的文件。

控制器：

<?php defined('BASEPATH') OR exit('No direct script access allowed');
class Files_upload extends CI_Controller {
function  __construct() {
parent::__construct();
$this->load->model('files');
}    
function index(){
$data['gallery'] = $this->db->query("select * from gallery order by id desc limit 10")->result();
$data = array();
if($this->input->post('submitForm') && !empty($_FILES['upload_Files']['name'])){
$filesCount = count($_FILES['upload_Files']['name']);
for($i = 0; $i < $filesCount; $i++){
$_FILES['upload_File']['name'] = $_FILES['upload_Files']['name'][$i];
$_FILES['upload_File']['type'] = $_FILES['upload_Files']['type'][$i];
$_FILES['upload_File']['tmp_name'] = $_FILES['upload_Files']['tmp_name'][$i];
$_FILES['upload_File']['error'] = $_FILES['upload_Files']['error'][$i];
$_FILES['upload_File']['size'] = $_FILES['upload_Files']['size'][$i];
$uploadPath = 'uploads/files/';
$config['upload_path'] = $uploadPath;
$config['allowed_types'] = 'gif|jpg|png|pdf|mp4|avi';                
$this->load->library('upload', $config);
$this->upload->initialize($config);
if($this->upload->do_upload('upload_File')){
$fileData = $this->upload->data();
$uploadData[$i]['file_name'] = $fileData['file_name'];
$uploadData[$i]['created'] = date("Y-m-d H:i:s");
$uploadData[$i]['modified'] = date("Y-m-d H:i:s");
}
}            
if(!empty($uploadData)){
//Insert file information into the database
$insert = $this->files->insert($uploadData);
$statusMsg = $insert?'Files uploaded successfully.':'Some problem occurred, please try again.';
$this->session->set_flashdata('statusMsg',$statusMsg);
}
$this->load->helper('url');
$ImageName      = $_FILES['upload_File']['name'];
$loc =  base_url().$uploadPath.$ImageName;   
echo $ImageName;
echo $loc;                                
$im = new imagick($loc);
$noOfPagesInPDF = $im->getNumberImages(); 
if ($noOfPagesInPDF) { 
for ($i = 0; $i < 1; $i++) { 
$url = $loc.'['.$i.']'; 
$image = new Imagick($url);
$image->setImageFormat("jpg"); 
$image->setImageCompressionQuality(80); 
$image->writeImage("uploads/files/img/".($i+1).'-'.$ImageName.'.jpg'); 
}
}
for($i = 0; $i<1;$i++) {
$img = "uploads/files/img/".($i+1).'-'.$ImageName.'.jpg';
$display .= "<img src='$img' title='Page-$i' /><br>";            
}
$message = "PDF converted to JPEG sucessfully!!";
}
//Get files data from database
$data['gallery'] = $this->files->getRows();
//Pass the files data to view
$this->load->view('files_upload/index', $data);
}
}

---

已解决

是正确的代码

$ImageName= $fileData['file_name'];
$loc =  realpath(APPPATH.'../uploads/files/').'/'.$ImageName;

或者您可以直接执行

$loc = $fileData['full_path'];

Answer 1

这将起作用(测试(：

//$data['gallery'] = $this->db->query("select * from gallery order by id desc limit 10")->result(); // same at bottom??
$message = '';
$display = '';
if ($this->input->post('submitForm') && !empty($_FILES['userfile']['name'])) {
$uploadPath = FCPATH . 'uploads/files/';
if (!is_dir($uploadPath) && mkdir($uploadPath, DIR_WRITE_MODE, true) == false) {
show_error('Folder cannot be made!');
}
$config['upload_path'] = $uploadPath;
$config['allowed_types'] = 'gif|jpg|png|pdf|mp4|avi';
$this->load->library('upload', $config);
// change input field to <input type="file" name="userfile">
if (!$this->upload->do_upload()) {
$this->session->set_flashdata('statusMsg', $this->upload->display_errors());
} else {
$fileData = $this->upload->data();
$uploadData['file_name'] = $fileData['file_name'];
$uploadData['created'] = date("Y-m-d H:i:s");
$uploadData['modified'] = date("Y-m-d H:i:s");
$insert = $this->files->insert($uploadData);
$insert = true;
if (!$insert) {
@unlink($fileData['full_path']); // remove orphan
$this->session->set_flashdata('statusMsg', 'Database error. Please try again');
} else {
$this->session->set_flashdata('statusMsg', 'Files uploaded successfully.');
if ($fileData['file_ext'] == '.pdf') {
try {
$newPath = $uploadPath . 'img/';
if (!is_dir($newPath) && mkdir($newPath, DIR_WRITE_MODE, true) == false) {
throw new Exception('Folder cannot be made!');
}
$ImageName = $fileData['raw_name'];
$loc = $fileData['full_path'];
$im = new Imagick($loc);
$pdfPageCount = $im->getNumberImages();
if ($pdfPageCount > 0) {
for ($i = 0; $i < $pdfPageCount; $i++) {
$url = $loc . '[' . $i . ']';
$image = new Imagick($url);
$image->setImageFormat("jpg");
$image->setImageCompressionQuality(80);
$image->writeImage($newPath . ($i + 1) . '-' . $ImageName . '.jpg');
$img = base_url("uploads/files/img/" . ($i + 1) . '-' . $ImageName . '.jpg');
$display .= "<img src='$img' title='Page-$i' /><br>";
}
echo $display; // debugging
$this->session->set_flashdata('statusMsg', "PDF converted to JPEG(s) sucessfully!");
}
} catch (Exception $e) {
@unlink($fileData['full_path']); // remove orphan
$this->session->set_flashdata('statusMsg', $e->getMessage());
}
} else {
echo 'not a pdf'; // debugging only
}
}
}
}
//Get files data from database
$data['gallery'] = $this->files->getRows();
//Pass the files data to view
$this->load->view('files_upload/index', $data);

请注意，输入文件字段现在应该如下所示：

<input type="file" name="userfile" />

您还必须修改：

$this->files->insert($uploadData)功能