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PHP验证码图片展示不了

WBOY
WBOYOriginal
2016-06-13 11:16:48787browse

PHP验证码图片显示不了
PHP验证码图片显示不了，显示的是一个红色的叉叉。代码如下：



image.php

<br /><?php<br />	session_start();<br />	if(isset($_POST['submit'])){<br />		if(trim($_POST["test"])==$_SESSION['validationcode']){<br />			echo '提交成功<br>';<br />		}else{ <br />			echo '<font color="red">验证码输入错误！！</font><br>';<br />		}<br />	}<br />?><br /><html><br />	<head><br />		<title>Image</title><br />		<meta http-equiv="content-type" content="text/html;charset=gb2312"><br />		<script><br />			function newgdcode(obj,url) {<br />				//后面传递一个随机参数，否则在IE7和火狐下，不刷新图片<br />				obj.src = url+ '?nowtime=' + new Date().getTime();<br />			}<br />		</script><br />	</head><br />	<body><br />		<img src="imgcode.php" alt="看不清楚，换一张"   style="max-width:90%" onClick="javascript: newgdcode(this,this.src);" /><br />		<form method="POST" action="image.php"><br />			<input type="text" name="test"><br><br />			<input type="submit" name="submit" value="提交"><br />		</form><br />	</body><br /></html><br />



imgcode.php
<br /><?php<br />	session_start();<br />	require_once('ValidationCode.php');<br /><br />	$image = new ValidationCode(60,20,4);    <br /><br />	$image->showImage();<br />	$_SESSION['validationcode'] =$image->getCheckCode(); <br />?><br />



ValidationCode.php

<br><?php <br />     /* 类ValidationCode声明在文件名为Validationcode.php中    */<br>     /* 通过该类的对象可以动态获取验证码图片，和验证码字符串 */<br>	class ValidationCode {<br>		private $width;                               //验证码图片的宽度<br>		private $height;                               //验证码图片的高度<br>		private $codeNum;                            //验证码字符的个数<br>		private $checkCode;                           //验证码字符<br>		private $image;                               //验证码画布<br><br>		/* 构造方法用来实例化验证码对象，并为一些成员属性初使化        */<br>		/* 参数width: 设置验证码图片的宽度，默认宽度值为60像素        */<br>		/* 参数height: 设置验证码图片的高度，默认高度值为20像素        */<br>		/* 参数codeNum: 设置验证码中字母和数字的个数，默认个数为4个  */<br>		function __construct($width=60, $height=20, $codeNum=4) {<br>			$this->width=$width;                     //为成员属性width初使化<br>			$this->height=$height;                     //为成员属性height初使化<br>			$this->codeNum=$codeNum;               //为成员属性codeNum初使化<div class="clear">
                 
              
              
        
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