php加载 GD库后 路径写的也正确 还是无法显示图片？ 到底是啥原因 ？ 求答案~

Posted 2023-03-22

参考技术A 图片是你用函数画出来的吗？
把下面的代码运行一下，就知道你的GD库好了没
<?php
$image = imagecreatetruecolor(200,100);
//设置背景颜色

$bgcolor = imagecolorallocate($image,0,0,0);
//设置字体颜色
$textcolor = imagecolorallocate($image,255,255,255);
//把字符串写在图像左上角

imagestring($image,20,15,10,"Hello world!",$textcolor);
//输出图像

header("Content-type: image/jpeg");
imagejpeg($image);
?>

即使在激活 GD 库后，imagettftext() 也无法正常工作

【中文标题】即使在激活 GD 库后，imagettftext() 也无法正常工作

【英文标题】：imagettftext() is Not Working even after activating GD library

【发布时间】：2021-11-20 18:26:45

【问题描述】：

我可以通过 imagemerage 成功看到图像结果，但 imagettftext 无法正常工作，请帮我解决这个问题。

header('Content-type: image/jpeg');

$dest = imagecreatefromjpeg('ITI_card.jpg');

        $filename = 'students_img/' . $student_photo;
        $source = imagecreatefromjpeg($filename);

        list($width, $height) = getimagesize($filename);
        $newwidth = 230;
        $newheight = 275;
        $thumb = imagecreatetruecolor($newwidth, $newheight);
        imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);

        $color = imagecolorallocate($dest, 0x00, 0x00, 0x00);

        $font_path = 'arial.ttf';

        imagettftext($dest, 25, 0, 266, 182, $color, $font_path, $name);
        imagettftext($dest, 25, 0, 266, 232, $color, $font_path, $fathername);
        imagettftext($dest, 25, 0, 266, 276, $color, $font_path, $gender);
        imagettftext($dest, 25, 0, 266, 322, $color, $font_path, $branch);
        imagettftext($dest, 25, 0, 266, 367, $color, $font_path, $academic_year);
        imagettftext($dest, 25, 0, 266, 412, $color, $font_path, $roll_no);
        imagettftext($dest, 25, 0, 266, 460, $color, $font_path, $dob);
        imagettftext($dest, 25, 0, 266, 501, $color, $font_path, $address);
        imagettftext($dest, 25, 0, 266, 532, $color, $font_path, $address1);
        imagettftext($dest, 25, 0, 266, 595, $color, $font_path, $contact);

        imagecopymerge($dest, $thumb, 761, 160, 0, 0, 230, 275, 100);

       imagejpeg($dest);

【参考方案1】：

只要确定

字体文件 (arial.ttf) 存在于您的服务器中 变量 $student_photo、$name 等已正确设置。

那么应该没有问题。

请尝试以下代码：（1.jpg是示例图片，2.jpg是绿色图片。我已将文字更改为红色以使其更清晰）

<?php

header('Content-type: image/jpeg');
 $dest = imagecreatefromjpeg('1.jpg');

            $filename = '2.jpg';
            $source = imagecreatefromjpeg($filename);

            list($width, $height) = getimagesize($filename);
            $newwidth = 230;
            $newheight = 275;
            $thumb = imagecreatetruecolor($newwidth, $newheight);
            imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);

            $color = imagecolorallocate($dest, 0xFF, 0x00, 0x00);

            $font_path = 'arial.ttf';
            $test="TESTING";

            imagettftext($dest, 25, 0, 266, 182, $color, $font_path, $test);


            imagecopymerge($dest, $thumb, 761, 160, 0, 0, 230, 275, 100);
            imagejpeg($dest);
?>

一个现场工作的例子是在

http://www.createchhk.com/SO/testSO21Nov2021.php