PHP验证码图片生成
<?php // PHP验证码图片生成 session_start(); $image = imagecreatetruecolor(100,30); $bgcolor = imagecolorallocate($image,255,255,255);//#FFFFFFFFFFFF imagefill($image,0,0,$bgcolor); $captch_code=""; for ($i=0;$i<4;$i++) { $fontsize = 6; $fontcolor = imagecolorallocate($image,rand(0,120),rand(0,120),rand(0,120)); $data='abcdefghijklmnopqrstuvwxyz1234567890'; $fontcontent=substr($data,rand(0,strlen($data)),1); $captch_code.="$fontcontent"; $x = ($i * 100/4)+rand(5,10); $y = rand(5,10); images...