Question

我不知道我在哪里犯了一个错误，当我从http://localhost/image.php?application=first的代码中解雇时，一切正常。

session_start();
$name = $_GET['application'];   

$text = rand(10000,99999); 
$_SESSION['application'][$name] = $text;

$height = 25; 
$width = 65; 
$image_p = imagecreate($width, $height); 
$black = imagecolorallocate($image_p, 0, 0, 0); 
$white = imagecolorallocate($image_p, 255, 255, 255); 
$font_size = 14; 

imagestring($image_p, $font_size, 5, 5, $text, $white); 
imagejpeg($image_p, null, 80);

但是我改变了这个

的代码

if (isset($_GET['application']) && !empty($_GET['application'])) {
    if (isset($_GET['image']) && $_GET['image'] == 'get'){
    session_start();
    $name = $_GET['application'];   

    $text = rand(10000,99999); 
    $_SESSION['application'][$name] = $text;

    $height = 25; 
    $width = 65; 
    $image_p = imagecreate($width, $height); 
    $black = imagecolorallocate($image_p, 0, 0, 0); 
    $white = imagecolorallocate($image_p, 255, 255, 255); 
    $font_size = 14;
    imagestring($image_p, $font_size, 5, 5, $text, $white); 

    imagejpeg($image_p, null, 80);
}
}

然后我在浏览器中获得RAW格式，所以我添加

header('Content-type: image/jpeg'); 
imagejpeg($image_p, null, 80);

到代码，现在我收到消息，我的图片被中断，但当我将它保存在驱动器上并从IrfanView启动时，它正常打开。

我想补充说我正在测试ob_start()函数，但它没有改变任何内容。

Answer 1

点击此网址时，对我来说很有用：

http://localhost/image.php?application=first&image=get

以下是我在image.php中使用的确切代码：

if (isset($_GET['application']) && !empty($_GET['application'])) {
    if (isset($_GET['image']) && $_GET['image'] == 'get'){
        session_start();
        $name = $_GET['application'];   

        $text = rand(10000,99999); 
        $_SESSION['application'][$name] = $text;

        $height = 25; 
        $width = 65; 
        $image_p = imagecreate($width, $height); 
        $black = imagecolorallocate($image_p, 0, 0, 0); 
        $white = imagecolorallocate($image_p, 255, 255, 255); 
        $font_size = 14;
        imagestring($image_p, $font_size, 5, 5, $text, $white); 

        header('Content-type: image/jpeg');
        imagejpeg($image_p, null, 80);
    }
}

?>

Answer 2

好吧我明白了。问题是我在主IF声明之前添加了require 'common.php'。我的整个代码都是这样的

<?php
require 'common.php';
    if (isset($_GET['application']) && !empty($_GET['application'])) {
    if (isset($_GET['image']) && $_GET['image'] == 'get'){
        session_start();
        $name = $_GET['application'];                   $text = rand(10000,99999);             $_SESSION['application'][$name] = $text;
            $height = 25;             $width = 65;             $image_p = imagecreate($width, $height);             $black = imagecolorallocate($image_p, 0, 0, 0);             $white = imagecolorallocate($image_p, 255, 255, 255);             $font_size = 14;
        imagestring($image_p, $font_size, 5, 5, $text, $white);                 header('Content-type: image/jpeg');
        imagejpeg($image_p, null, 80);
    }
.
.
.

所以当我搬到其他地方时，everythig很棒！谢谢伙伴们的帮助！：）

在PHP中使用imagejpeg生成图像

2 个答案: