Table of Contents
ThinkPHP做文字水印时提示call an undefined function exif_imagetype()解决方法,
Home php教程 php手册 ThinkPHP做文字水印时提示call an undefined function exif_imagetype()解决方法,

ThinkPHP做文字水印时提示call an undefined function exif_imagetype()解决方法,

Jun 13, 2016 am 09:22 AM
thinkphp Solution

ThinkPHP做文字水印时提示call an undefined function exif_imagetype()解决方法,

本文实例讲述了ThinkPHP做文字水印时提示call an undefined function exif_imagetype()解决方法。分享给大家供大家参考。具体如下:

一、问题描述:

ThinkPHP做文字水印 ,今天做一个电子请帖,就把祝福语贴到图片上面,发现一直报错是取不到图片类型,比如gif,jpg等,并提示call an undefined function exif_imagetype()。

二、解决方法:

出现这个错误就是php.in 配置问题,打开即可:打开扩展 extension=php_exif.dll 如果再不行就把extension=php_mbstring.dll ,放到extension=php_exif.dll前边
注意:extension=php_exif.dll 扩展要打开
类文件:wptext_class.php代码如下:

复制代码 代码如下:

/*
PHP添加文字水印类 V1.0
作者:Yu Tiedun
邮箱:
修改日期:2010-03-07
支持图片格式:gif, jpg, png
水印的位置自己根据需要调整
如能修改得更好,请发一份给我
*/
class WaterPrint
{
//类开始
    public $text, $color, $size, $font, $angle, $px, $py, $im;
//要添加的文字
public function GetWpText($text)
{
   $this->text = $text;
}
//添加文字的颜色
public function GetFtColor($color)
{
   $this->color = $color;
}
//添加文字的字体
public function GetFtType($font)
{
   $this->font = $font;
}
 
//添加文字的大小
public function GetFtSize($size)
{
   $this->size = $size;
}
//文字旋转的角度
public function GetTtAngle($angle)
{
   $this->angle = $angle;
}
//添加文字的位置
public function GetTtPosit()
{
   $this->px = 10;
   $this->py = imagesy($this->im) - 20;
}
//添加文字水印
public function AddWpText($pict)
{
   $ext = exif_imagetype($pict);
    switch ($ext) {
   case 1:
   $picext = "gif";
    $this->im = imagecreatefromgif($pict);
    break;
   case 2:
   $picext = "jpg";
    $this->im = imagecreatefromjpeg($pict);
    break;
   case 3:
   $picext = "png";
    $this->im = imagecreatefrompng($pict);
    break;
   default:
   $this->Errmsg("不支持的文件格式!");
    break;
   }
   //$this->picext = $picext;
   $this->GetTtPosit();
   $im   = $this->im;
   $size = $this->size;
   $angle= $this->angle;
   $px   = $this->px;
   $py   = $this->py;
   $color= $this->color;
   $font = $this->font;
   $text = $this->text;
   $color= imagecolorallocate($im, 255, 0, 0);
   imagettftext($im, $size, $angle, $px, $py, $color, $font, $text);
   switch ($picext) {
   case "gif":
   imagegif($im, $pict);
    break;
   case "jpg":
   imagejpeg($im, $pict, 100);
    break;
   case "png":
      imagealphablending($im, false);
        imagesavealpha($im, true);
       imagepng($im, $pict);
    break;
   }
   imagedestroy($im);
}
//错误信息提示
public function Errmsg($msg)
{
    echo "";
}
//类结束
}
?>

调用页面:index.php代码如下:

复制代码 代码如下:

header("Content-type: text/html; charset=gbk");
require("wptext_class.php");
$pict = "images/button2.png"; //目标图片
//$text = "XP/Vista/Win7"; //要添加的文字
$text = "文字水印测试";
$text = iconv("gb2312","utf-8",$text); //防止中文乱码
$size = 20; //文字大小
$font = "c:/windows/fonts/arial.ttf"; //字体
$angle = 0; //旋转角度,逆时针
$wptext = new WaterPrint();
$wptext->GetWpText($text);
$wptext->GetFtSize($size);
$wptext->GetFtType($font);
$wptext->GetTtAngle($angle);
$wptext->AddWpText($pict);
$wptext = null;
?>
查看结果

希望本文所述对大家的ThinkPHP框架程序设计有所帮助。

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Nordhold: Fusion System, Explained
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1671
14
PHP Tutorial
1276
29
C# Tutorial
1256
24
Is the company's security software causing the application to fail to run? How to troubleshoot and solve it? Is the company's security software causing the application to fail to run? How to troubleshoot and solve it? Apr 19, 2025 pm 04:51 PM

Troubleshooting and solutions to the company's security software that causes some applications to not function properly. Many companies will deploy security software in order to ensure internal network security. ...

Centos minio installation permissions issues Centos minio installation permissions issues Apr 14, 2025 pm 02:00 PM

Permissions issues and solutions for MinIO installation under CentOS system When deploying MinIO in CentOS environment, permission issues are common problems. This article will introduce several common permission problems and their solutions to help you complete the installation and configuration of MinIO smoothly. Modify the default account and password: You can modify the default username and password by setting the environment variables MINIO_ROOT_USER and MINIO_ROOT_PASSWORD. After modification, restarting the MinIO service will take effect. Configure bucket access permissions: Setting the bucket to public will cause the directory to be traversed, which poses a security risk. It is recommended to customize the bucket access policy. You can use MinIO

How to create Mysql database using phpMyadmin How to create Mysql database using phpMyadmin Apr 10, 2025 pm 10:48 PM

phpMyAdmin can be used to create databases in PHP projects. The specific steps are as follows: Log in to phpMyAdmin and click the "New" button. Enter the name of the database you want to create, and note that it complies with the MySQL naming rules. Set character sets, such as UTF-8, to avoid garbled problems.

What to do if Redis memory usage is too high? What to do if Redis memory usage is too high? Apr 10, 2025 pm 02:21 PM

Redis memory soaring includes: too large data volume, improper data structure selection, configuration problems (such as maxmemory settings too small), and memory leaks. Solutions include: deletion of expired data, use compression technology, selecting appropriate structures, adjusting configuration parameters, checking for memory leaks in the code, and regularly monitoring memory usage.

Navicat's solution to the database cannot be connected Navicat's solution to the database cannot be connected Apr 08, 2025 pm 11:12 PM

The following steps can be used to resolve the problem that Navicat cannot connect to the database: Check the server connection, make sure the server is running, address and port correctly, and the firewall allows connections. Verify the login information and confirm that the user name, password and permissions are correct. Check network connections and troubleshoot network problems such as router or firewall failures. Disable SSL connections, which may not be supported by some servers. Check the database version to make sure the Navicat version is compatible with the target database. Adjust the connection timeout, and for remote or slower connections, increase the connection timeout timeout. Other workarounds, if the above steps are not working, you can try restarting the software, using a different connection driver, or consulting the database administrator or official Navicat support.

What are the common misunderstandings in CentOS HDFS configuration? What are the common misunderstandings in CentOS HDFS configuration? Apr 14, 2025 pm 07:12 PM

Common problems and solutions for Hadoop Distributed File System (HDFS) configuration under CentOS When building a HadoopHDFS cluster on CentOS, some common misconfigurations may lead to performance degradation, data loss and even the cluster cannot start. This article summarizes these common problems and their solutions to help you avoid these pitfalls and ensure the stability and efficient operation of your HDFS cluster. Rack-aware configuration error: Problem: Rack-aware information is not configured correctly, resulting in uneven distribution of data block replicas and increasing network load. Solution: Double check the rack-aware configuration in the hdfs-site.xml file and use hdfsdfsadmin-printTopo

How to deal with Redis memory fragmentation? How to deal with Redis memory fragmentation? Apr 10, 2025 pm 02:24 PM

Redis memory fragmentation refers to the existence of small free areas in the allocated memory that cannot be reassigned. Coping strategies include: Restart Redis: completely clear the memory, but interrupt service. Optimize data structures: Use a structure that is more suitable for Redis to reduce the number of memory allocations and releases. Adjust configuration parameters: Use the policy to eliminate the least recently used key-value pairs. Use persistence mechanism: Back up data regularly and restart Redis to clean up fragments. Monitor memory usage: Discover problems in a timely manner and take measures.

Can vs code run in Windows 8 Can vs code run in Windows 8 Apr 15, 2025 pm 07:24 PM

VS Code can run on Windows 8, but the experience may not be great. First make sure the system has been updated to the latest patch, then download the VS Code installation package that matches the system architecture and install it as prompted. After installation, be aware that some extensions may be incompatible with Windows 8 and need to look for alternative extensions or use newer Windows systems in a virtual machine. Install the necessary extensions to check whether they work properly. Although VS Code is feasible on Windows 8, it is recommended to upgrade to a newer Windows system for a better development experience and security.

See all articles