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Example code of erikwang2013/poster-php

Informations about the package poster-php

poster-php

PHP 图片验证码与海报生成工具包 —— 框架无关核心 + Laravel / ThinkPHP / Webman / Hyperf 适配。

架构设计图

功能

验证码（三种方式 + 随机切换）

类型 说明
点击验证 click 用户按顺序点击图片上的目标文字
旋转验证 rotate 用户拖动滑块将图片旋转回正确角度
滑块验证 slider 用户拖动拼图块到缺口位置
随机切换 random 随机选取以上三种验证码之一

海报生成

链式 Builder API，支持 14 种元素：

元素 方法 说明
文字 addText() 自动换行，对齐，多行
图片 addImage() 缩放裁剪，圆角，阴影
头像 addAvatar() 圆形裁剪，边框
二维码 addQrcode() 纯 PHP 生成，中心 Logo，底部文案
形状 addShape() 矩形/圆形/圆角，填充/描边
分割线 addLine() 颜色，宽度
水印 addWatermark() 平铺文字，角度，间距
表格 addTable() 表头，斑马纹，列宽
图表 addChart() 柱状图 / 折线图 / 饼图
日历 addCalendar() 月历，高亮日期，标注
艺术字体 addArtisticText() 描边 / 阴影 / 渐变 / 霓虹
Emoji addEmoji() 彩色 emoji 表情渲染
字体图标 addIcon() FontAwesome 图标渲染
颜文字 addEmoticon() 日式颜文字 / 自定义表情

安装

系统要求：PHP >= 8.0，GD 扩展。

可选扩展：

使用说明

一、验证码

1. 点击验证码 (ClickCaptcha)

用户需要按顺序点击图片上的目标文字（如"树""鸟""花"），验证人类操作。

2. 旋转验证码 (RotateCaptcha)

系统随机旋转图片 30°~330°，用户拖动滑块将图片旋转回正。

3. 滑块验证码 (SliderCaptcha)

系统从背景切出拼图块并偏移，用户拖动拼图到缺口位置。

4. 随机切换 (RandomCaptcha)

系统随机从 click / rotate / slider 中选取一种验证码，增加破解难度。

验证安全特性

特性 说明
一次性 验证成功/超过最大次数后 key 删除
防暴力 默认最多验证 3 次（可配置）
有效期 默认 300 秒（可配置）
随机性 每次生成的背景颜色、噪声、目标位置均随机

二、海报生成

基础用法

文字 addText()

图片 addImage()

头像 addAvatar()

二维码 addQrcode()

形状 addShape()

分割线 addLine()

水印 addWatermark()

表格 addTable()

图表 addChart()

日历 addCalendar()

艺术字体 addArtisticText()

Emoji addEmoji()

系统会自动检测 macOS / Linux / Windows 上的 emoji 字体路径。

字体图标 addIcon()

颜文字 addEmoticon()

三、模板系统

框架集成

Laravel

ThinkPHP

config/web.php:

Webman

config/bootstrap.php:

Hyperf

通过 ConfigProvider 自动注册。

配置

见 config/poster.php，支持 .env 覆盖（参考 .env.example）。

目录结构

开源不易，欢迎支持

微信 支付宝

License

MIT License — Copyright (c) 2026 erik https://erik.xyz

All versions of poster-php with dependencies

PHP Build Version
Package Version
Requires php Version >=8.0
ext-gd Version *
ext-mbstring Version *
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