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初夏 / php 图片海报生成类

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README
Apache-2.0

php 图片海报生成类

介绍

由于工作中多处需要用到后端生成海报给微信H5或者小程序来分享,之前一直使用前端来生成,不过前端跨域什么的虽然能解决,但是还是麻烦,所以改用后端来生成。

特点

  1. 采用配置型输入,支持多张图片合并,支持png透明,支持图片圆角处理,支持长文本换行显示。可以返回处理好的海报图片数据流或者直接保存为图片;
  2. 配合phpQrcode类库,可以实现生成二维码图片后再合并到海报中,支持生成的二维码叠加logo;
  3. 占用内存小,运行示例中的图片,消耗内存:1.81 MB,如果不生成图片中的二维码 则只消耗内存:961.68 KB;

软件架构

php

示例

输入图片说明

安装教程

直接运行

使用说明

$config = array(
    'bg_url' => './img/timg.png',//背景图片路径
    'text' => array(
        array(
            'text' => '初夏',//文本内容
            'left' => 312, //左侧字体开始的位置
            'top' => 676, //字体的下边框
            'fontSize' => 16, //字号
            'fontColor' => '255,0,0', //字体颜色
            'angle' => 0,
        ),
        array(
            'text' => '你不运动,地球也会动',
            'left' => 310,
            'top' => 720,
            'width' => 400,
            'fontSize' => 16, //字号
            'fontColor' => '0,0,80', //字体颜色
            'angle' => 0,
        ),
    ),
    'image' => array(
        array(
            'name' => 'jobs', //图片名称,用于出错时定位
            'url' => './img/02.jpg',
            'stream' => 0, //图片资源是否是字符串图像流
            'left' => 202,
            'top' => 639,
            'right' => 0,
            'bottom' => 0,
            'width' => 100,
            'height' => 100,
            'radius' => 50,
            'opacity' => 100
        ),
        array(
            'name' => '苹果', //图片名称,用于出错时定位
            'url' => './img/01.jpg',
            'stream' => 0,
            'left' => 335,
            'top' => 910,
            'right' => 0,
            'bottom' => 0,
            'width' => 50,
            'height' => 50,
            'radius' => 0,
            'opacity' => 100
        ),
    )
);

//设置海报背景图
poster::setConfig($config);
//用法一:设置保存路径
poster::make('./img/demo.png');

//用法二:返回数据流
$res = poster::make();
if (!$res) {
    echo '生成失败:', poster::getErrMessage();
} else {
    header("content-type:image/png");
    echo $res;
}

//是否要清理缓存资源
poster::clear();

生成二维码

include './inc/phpQrcode.class.php';//由phpQrcode改造,新增返回数据流方法

//二维码生成内容
$code = 'https://www.baidu.com/';

//方法一:生成二维码图片数据流
$qrCodeData = QRcode::pngData($code, 13);

//方法二:生成指定路径图片
QRcode::png($code, './img/qrcode.png',QR_ECLEVEL_L,3,13);

默认配置参数

图片类默认配置参数

array(
     'name' => '', //图片名称,用于出错时定位
     'url' => '', //图片路径
     'stream' => 0, //图片数据流,与url二选一
     'left' => 0,//左边距
     'top' => 0,//上边距
     'right' => 0,//有边距
     'bottom' => 0,//下边距
     'width' => 0,//宽
     'height' => 0,//高
     'radius' => 0, //圆角度数,最大值为显示宽度的一半
     'opacity' => 100//透明度
)

文本类默认配置参数

array(
      'text' => '',//显示文本
      'left' => 0,//左边距
      'top' => 0,//上边距
      'width' => 0, //文本框宽度,设置后可实现文字换行
      'fontSize' => 32, //字号
      'fontPath' => 'msyh.ttf', //字体文件
      'fontColor' => '255,255,255', //字体颜色
      'angle' => 0, //倾斜角度
)
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简介

由于工作中多处需要用到后端生成海报给微信H5或者小程序来分享,之前一直使用前端来生成,不过前端跨域什么的虽然能解决,但是还是麻烦,所以想着后端来生成。这个类采用配置型输入,支持多张图片合并,支持png透明,支持图片圆角处理,支持长文本换行显示。可以返回处理好的海报图片数据流或者直接保存为图片。配合phpQrcode类库,可以实现生成二维码图片后再合并到海报中,支持生成的二维码叠加logo。 展开 收起
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