<span style="color: #008080;"> 1</span> <span style="color: #000000;">php
</span><span style="color: #008080;"> 2</span> <span style="color: #800080;">$im</span>=imagecreate(200,100<span style="color: #000000;">);//生成画布
</span><span style="color: #008080;"> 3</span> imagecolorallocate(<span style="color: #800080;">$im</span>,0,0,0<span style="color: #000000;">);//背景色
</span><span style="color: #008080;"> 4</span> <span style="color: #800080;">$white</span>=imagecolorallocate(<span style="color: #800080;">$im</span>,<span style="color: #008080;">rand</span>(0,255),<span style="color: #008080;">rand</span>(0,255),<span style="color: #008080;">rand</span>(0,255<span style="color: #000000;">));//生成随机颜色
</span><span style="color: #008080;"> 5</span> <span style="color: #0000ff;">for</span>(<span style="color: #800080;">$i</span>=0;<span style="color: #800080;">$i</span>$i++<span style="color: #000000;">)
</span><span style="color: #008080;"> 6</span> <span style="color: #000000;">{
</span><span style="color: #008080;"> 7</span> imageline(<span style="color: #800080;">$im</span>,<span style="color: #008080;">rand</span>(0,200),<span style="color: #008080;">rand</span>(0,100),<span style="color: #008080;">rand</span>(0,200),<span style="color: #008080;">rand</span>(0,100),<span style="color: #800080;">$white</span><span style="color: #000000;">);//生成干扰线条元素
</span><span style="color: #008080;"> 8</span> <span style="color: #000000;">}
</span><span style="color: #008080;"> 9</span> <span style="color: #0000ff;">for</span>(<span style="color: #800080;">$i</span>=0;<span style="color: #800080;">$i</span>$i++<span style="color: #000000;">)
</span><span style="color: #008080;">10</span> <span style="color: #000000;">{
</span><span style="color: #008080;">11</span> imagesetpixel(<span style="color: #800080;">$im</span>,<span style="color: #008080;">rand</span>(0,200),<span style="color: #008080;">rand</span>(0,100),<span style="color: #800080;">$white</span><span style="color: #000000;">);//生成干扰点元素
</span><span style="color: #008080;">12</span> <span style="color: #000000;">}
</span><span style="color: #008080;">13</span> <span style="color: #0000ff;">for</span>(<span style="color: #800080;">$i</span>=0,<span style="color: #800080;">$str</span>='';<span style="color: #800080;">$i</span>$i++<span style="color: #000000;">)//通过循环获得四个字符
</span><span style="color: #008080;">14</span> <span style="color: #000000;">{
</span><span style="color: #008080;">15</span> <span style="color: #0000ff;">switch</span>(<span style="color: #008080;">rand</span>(1,3<span style="color: #000000;">))
</span><span style="color: #008080;">16</span> <span style="color: #000000;"> {
</span><span style="color: #008080;">17</span> <span style="color: #0000ff;">case</span>'1':
<span style="color: #008080;">18</span> <span style="color: #800080;">$ch</span>=<span style="color: #008080;">rand</span>(0,9<span style="color: #000000;">);
</span><span style="color: #008080;">19</span> <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">20</span> <span style="color: #0000ff;">case</span>'2':
<span style="color: #008080;">21</span> <span style="color: #800080;">$ch</span>=<span style="color: #008080;">sprintf</span>('%c',<span style="color: #008080;">rand</span>(97,122<span style="color: #000000;">));
</span><span style="color: #008080;">22</span> <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">23</span> <span style="color: #0000ff;">case</span>'3':
<span style="color: #008080;">24</span> <span style="color: #800080;">$ch</span>=<span style="color: #008080;">sprintf</span>('%c',<span style="color: #008080;">rand</span>(65,90<span style="color: #000000;">));
</span><span style="color: #008080;">25</span> <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">26</span> <span style="color: #000000;"> }
</span><span style="color: #008080;">27</span> <span style="color: #800080;">$str</span>.=<span style="color: #800080;">$ch</span><span style="color: #000000;">;
</span><span style="color: #008080;">28</span>
<span style="color: #008080;">29</span> <span style="color: #000000;">}
</span><span style="color: #008080;">30</span> imagettftext(<span style="color: #800080;">$im</span>,32,<span style="color: #008080;">rand</span>(0,15),55,70,<span style="color: #800080;">$white</span>,'c.ttc',<span style="color: #800080;">$str</span><span style="color: #000000;">);//在画布上输出字符串
</span><span style="color: #008080;">31</span> <span style="color: #008080;">header</span>("Content-type:image/jpeg"<span style="color: #000000;">);
</span><span style="color: #008080;">32</span> imagejpeg(<span style="color: #800080;">$im</span><span style="color: #000000;">);
</span><span style="color: #008080;">33</span> imagedestroy(<span style="color: #800080;">$im</span><span style="color: #000000;">);
</span><span style="color: #008080;">34</span> ?>
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
How Long Does It Take To Beat Split Fiction?
4 weeks agoByDDD
R.E.P.O. Save File Location: Where Is It & How to Protect It?
4 weeks agoByDDD
Hot Tools
Zend Studio 13.0.1
Powerful PHP integrated development environment
EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
Dreamweaver Mac version
Visual web development tools
Atom editor mac version download
The most popular open source editor
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
