Home php教程 php手册 php读取图片内容并输出到浏览器的实现代码

php读取图片内容并输出到浏览器的实现代码

Jun 06, 2016 pm 08:28 PM
php Browser

如果php以图片,zip,exe等文件输出到浏览器,而前面还输出了其他字符,那就会是你看到的乱码

代码很简单,网上都能找到,美国空间,但在我机子上就是显示不出来,显示出的一直是这个php文件路径,

费了点时间才搞定,原来是我的

网上查了下,有这样一说:
如果php以图片,zip,exe等文件输出到浏览器,而前面还输出了其他字符,虚拟主机,那就会是你看到的乱码。
应该是输出图片前有输出空格或其他字符造成的,可以检查一下输出图片前有没有其他字符,虚拟主机,
如果是utf-8编码记得保存为无BOM的文件。
相关代码如下:

复制代码 代码如下:


class imgdata{
        public $imgsrc;
        public $imgdata;
        public $imgform;
        public function getdir($source){
                $this->imgsrc  = $source;
        }
        public function img2data(){
                $this->_imgfrom($this->imgsrc);
                return $this->imgdata=fread(fopen($this->imgsrc,'rb'),filesize($this->imgsrc));       
        }
        public function data2img(){
                header("content-type:$this->imgform");
                echo $this->imgdata;
                //echo $this->imgform;
                //imagecreatefromstring($this->imgdata);
        }
        public function _imgfrom($imgsrc){
                $info=getimagesize($imgsrc);
                //var_dump($info);
                return $this->imgform = $info['mime'];
        }
}
$n = new imgdata;
$n -> getdir("1.jpg");
$n -> img2data();
$n -> data2img();


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

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
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)

Explain the match expression (PHP 8 ) and how it differs from switch. Explain the match expression (PHP 8 ) and how it differs from switch. Apr 06, 2025 am 12:03 AM

In PHP8, match expressions are a new control structure that returns different results based on the value of the expression. 1) It is similar to a switch statement, but returns a value instead of an execution statement block. 2) The match expression is strictly compared (===), which improves security. 3) It avoids possible break omissions in switch statements and enhances the simplicity and readability of the code.

How to customize the resize symbol through CSS and make it uniform with the background color? How to customize the resize symbol through CSS and make it uniform with the background color? Apr 05, 2025 pm 02:30 PM

The method of customizing resize symbols in CSS is unified with background colors. In daily development, we often encounter situations where we need to customize user interface details, such as adjusting...

What is Cross-Site Request Forgery (CSRF) and how do you implement CSRF protection in PHP? What is Cross-Site Request Forgery (CSRF) and how do you implement CSRF protection in PHP? Apr 07, 2025 am 12:02 AM

In PHP, you can effectively prevent CSRF attacks by using unpredictable tokens. Specific methods include: 1. Generate and embed CSRF tokens in the form; 2. Verify the validity of the token when processing the request.

How to correctly display the locally installed 'Jingnan Mai Round Body' on the web page? How to correctly display the locally installed 'Jingnan Mai Round Body' on the web page? Apr 05, 2025 pm 10:33 PM

Using locally installed font files in web pages Recently, I downloaded a free font from the internet and successfully installed it into my system. Now...

Describe the purpose and usage of the ... (splat) operator in PHP function arguments and array unpacking. Describe the purpose and usage of the ... (splat) operator in PHP function arguments and array unpacking. Apr 06, 2025 am 12:07 AM

The... (splat) operator in PHP is used to unpack function parameters and arrays, improving code simplicity and efficiency. 1) Function parameter unpacking: Pass the array element as a parameter to the function. 2) Array unpacking: Unpack an array into another array or as a function parameter.

The text under Flex layout is omitted but the container is opened? How to solve it? The text under Flex layout is omitted but the container is opened? How to solve it? Apr 05, 2025 pm 11:00 PM

The problem of container opening due to excessive omission of text under Flex layout and solutions are used...

How can you prevent a class from being extended or a method from being overridden in PHP? (final keyword) How can you prevent a class from being extended or a method from being overridden in PHP? (final keyword) Apr 08, 2025 am 12:03 AM

In PHP, the final keyword is used to prevent classes from being inherited and methods being overwritten. 1) When marking the class as final, the class cannot be inherited. 2) When marking the method as final, the method cannot be rewritten by the subclass. Using final keywords ensures the stability and security of your code.

Why does negative margins not take effect in some cases? How to solve this problem? Why does negative margins not take effect in some cases? How to solve this problem? Apr 05, 2025 pm 10:18 PM

Why do negative margins not take effect in some cases? During programming, negative margins in CSS (negative...

See all articles