<?php/***CreatedbyPhpStorm.*User:Administrator*Date:2017\10\100010*Time:19:44*///生成随机验证码$strNumber=join('',range(0,9));$strChar=join('',range('a','z'));$str=$strNumber.$strChar.strtoupper($strChar);$str=substr(str_shuffle($str),'0',4);header("Content-type:p_w_picpath/png");//创建画布$width=100;$height=50;$p_w_picpath=p_w_picpathcreate($width,$height);//创建颜色$bgcolor=p_w_picpathcolorallocate($p_w_picpath,rand(0,20),rand(0,20),rand(0,20));//备用颜色(干扰线)$colorone=p_w_picpathcolorallocate($p_w_picpath,rand(100,155),rand(200,155),rand(100,155));;//干扰线for($j=0;$j<10;$j++){p_w_picpathline($p_w_picpath,rand(0,$width),rand(0,$height-20),rand(0,$width),rand(0,$height),$colorone);}//循环添加字符到画布每个字符的坐标为(总宽度/验证码的个数)for($i=0;$i<4;$i++){//备用颜色(文字)$fontcolor=p_w_picpathcolorallocate($p_w_picpath,rand(0,255),rand(100,200),rand(180,255));$x=(($width/4)*$i)+$width/10;$y=rand(10,$height-20);p_w_picpathchar($p_w_picpath,5,$x,$y,$str[$i],$fontcolor);}p_w_picpathpng($p_w_picpath);p_w_picpathdestroy($p_w_picpath);