Php Laravel图像创建代码

Php Laravel图像创建代码,php,laravel,gd,Php,Laravel,Gd,我从网上的某个地方复制了以下代码。它存储在一个名为captcha.php的文件中: $md5_hash = md5(rand(0,999)); //We don't need a 32 character long string so we trim it down to 5 $security_code = substr($md5_hash, 15, 5); //Set the session to store the security code

我从网上的某个地方复制了以下代码。它存储在一个名为captcha.php的文件中:

  $md5_hash = md5(rand(0,999)); 
    //We don't need a 32 character long string so we trim it down to 5 
    $security_code = substr($md5_hash, 15, 5); 

    //Set the session to store the security code


    //Set the image width and height
    $width = 100;
    $height = 20; 

    //Create the image resource 
    $image = ImageCreate($width, $height);  

    //We are making three colors, white, black and gray
    $white = ImageColorAllocate($image, 255, 255, 255);
    $black = ImageColorAllocate($image, 0, 0, 0);
    $grey = ImageColorAllocate($image, 204, 204, 204);

    //Make the background black 
    ImageFill($image, 0, 0, $black); 

    //Add randomly generated string in white to the image
    ImageString($image, 3, 30, 3, $security_code, $white); 

    //Throw in some lines to make it a little bit harder for any bots to break 
    ImageRectangle($image,0,0,$width-1,$height-1,$grey); 
    imageline($image, 0, $height/2, $width, $height/2, $grey); 
    imageline($image, $width/2, 0, $width/2, $height, $grey); 

    //Tell the browser what kind of file is come in 
    header("Content-Type: image/jpeg"); 

    //Output the newly created image in jpeg format 
    ImageJpeg($image);

    //Free up resources
    ImageDestroy($image);
我需要用在拉维里。我应该给出这个php文件到
标记的
src
属性的路径。当文件位于公共目录中的文件夹中时,它可以工作,但当我在路由中执行以下操作时,它不工作,并且不会创建图像。 我需要将其合并到Laravel路由中,以使用其
会话::
功能

以下是插入上述代码的路由器:

Route::get('captcha', array('as'=>'captcha'), function(){
    // above code 
});

我不清楚您的问题,但您可以创建一个类,并使用公共方法将此代码放在该类中,例如,您可以在
app/libs
文件夹中创建一个类(在
app
中创建
libs
文件夹),然后在此
libs
文件夹中创建类似于以下内容的类:

namespace Libs\Captcha;

class Captcha {

    public function dumpCaptcha()
    {
        // put the captcha code here but make
        // changes to the last part as given below

        //Tell the browser what kind of file is come in
        ob_start();
        header("Content-Type: image/jpeg"); 
        ImageJpeg($image);
        $img = ob_get_clean();

        ImageDestroy($image);
        return base64_encode($img);
    }

}
composer.json
文件的
autoload->classmap
部分的末尾添加另一个条目,如下所示:

"autoload": {
    "classmap": [
        // ...
        "app/tests/TestCase.php",
        "app/libs/captcha/Captcha.php",
    ]
}
Route::get('captcha', array('as'=>'captcha'), function(){
    $captcha = App::make('Libs\\Captcha\\Captcha');
    return View::make('view_name_here')->with('captchaImage', $captcha->dumpCaptcha());
});
然后从终端/命令提示符运行
composer dump autoload
,然后在路线内使用此类,如下所示:

"autoload": {
    "classmap": [
        // ...
        "app/tests/TestCase.php",
        "app/libs/captcha/Captcha.php",
    ]
}
Route::get('captcha', array('as'=>'captcha'), function(){
    $captcha = App::make('Libs\\Captcha\\Captcha');
    return View::make('view_name_here')->with('captchaImage', $captcha->dumpCaptcha());
});
然后在您的
视图中
可以使用类似的内容

<img src={{ 'data:image/jpeg;base64,' . $captchaImage }} />

将显示图像