验证码图像文字大小

编程入门 行业动态 更新时间:2024-10-12 03:21:05
本文介绍了验证码图像文字大小的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述

学习PHP代码;玩各种生成验证码的方法 代码: 在下面的代码中,我如何更改 $中显示的文本的大小b $ b验证码? 这种方法是否可行? TIA, Twayne -------------------------- <?php session_start(); $ width = 120; $ height = 40; $ length = 5; $ baseList =''23456789abcdfghjkmnpqrstvwxyzABCDEFGHIJKLMNPQRSTU VWXYZ''; $ code ="" ; $ counter = 0; $ image = @imagecreate($ width,$ height)或die(''无法初始化GD !''); for($ i = 0; $ i< 10; $ i ++){ imageline($ image, mt_rand(0,$ width),mt_rand(0,$ height), mt_rand(0,$ width),mt_rand( 0,$ height), imagecolorallocate($ image,mt_rand(150,255), mt_rand(150,255), mt_rand(150,255))); } for($ i = 0,$ x = 0; $ I< $长度; $ i ++){ $ actChar = substr($ baseList,rand(0,strlen($ baseList)-1),1); $ x + = 10 + mt_rand(0,10); imagechar($ image,mt_rand(3,5),$ x,mt_rand(5,20),$ actChar, imagecolorallocate($ image,mt_rand(0,155),mt_rand(0,155), mt_rand(0,155))); $ code。= strtolower($ actChar); } header(''Content-Type:image / jpeg'' ); imagejpeg($ image); imagedestroy($ image); $ _SESSION [''securityCode''] = $ code; ?> \ ---------------------------------

Hi, Learning PHP code; playing with various methods of generating captcha codes: In the code below, how would I change the size of the text displayed in the captcha code? Is it even possible with this method? TIA, Twayne -------------------------- <?php session_start(); $width = 120; $height = 40; $length = 5; $baseList = ''23456789abcdfghjkmnpqrstvwxyzABCDEFGHIJKLMNPQRSTU VWXYZ''; $code = ""; $counter = 0; $image = @imagecreate($width, $height) or die(''Cannot initialize GD!''); for( $i=0; $i<10; $i++ ) { imageline($image, mt_rand(0,$width), mt_rand(0,$height), mt_rand(0,$width), mt_rand(0,$height), imagecolorallocate($image, mt_rand(150,255), mt_rand(150,255), mt_rand(150,255))); } for( $i=0, $x=0; $i<$length; $i++ ) { $actChar = substr($baseList, rand(0, strlen($baseList)-1), 1); $x += 10 + mt_rand(0,10); imagechar($image, mt_rand(3,5), $x, mt_rand(5,20), $actChar, imagecolorallocate($image, mt_rand(0,155), mt_rand(0,155), mt_rand(0,155))); $code .= strtolower($actChar); } header(''Content-Type: image/jpeg''); imagejpeg($image); imagedestroy($image); $_SESSION[''securityCode''] = $code; ?> \ ---------------------------------

推荐答案

width = 120; width = 120;

height = 40; height = 40;

length = 5; length = 5;

更多推荐

验证码图像文字大小

本文发布于:2023-11-24 23:41:33,感谢您对本站的认可!
版权声明:本站内容均来自互联网,仅供演示用,请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系,我们将在24小时内删除。
本文标签:验证码   文字大小   图像

发布评论

评论列表 (有 0 条评论)
草根站长

>www.elefans.com

编程频道|电子爱好者 - 技术资讯及电子产品介绍!