[英]How could I display the source file.php in HTML?
我有以下PHP脚本(file.php),它显示当前时间并显示用户的输入:
Current time:
<?php
$time=time();
$actual_time=date('H:i:s',$time);
echo $actual_time;
//show user input
$enter=@$_POST['enter'];
echo '<br>Input: '.$enter;
?>
<form action="" method="POST">
<input type="text" name="enter">
<input type="submit" value="Refresh">
</form>
如果我输入例如<strong>test</strong>
,我会看到:
如果我输入<iframe src="file.php"></iframe>
,我可以在较小的窗口中重新加载页面:
那么,现在,如何通过在INPUT文本字段中提交某些HTML代码来显示原始PHP脚本(file.php)?
<?php
// Disable a WebKit security feature
// which would prevent from showing the source code.
header('X-XSS-Protection: 0');
if (isset($_GET['source']) || isset($_POST['source'])) {
$source = file_get_contents(__FILE__);
// To prevent this control from showing up
// in the output source code
// enable the code below.
/*
$lines_to_remove = 26;
$source = explode("\n", $source, $lines_to_remove);
$source = $source[$lines_to_remove - 1];
*/
$source = highlight_string($source, true);
echo $source;
return;
}
?>
Current time:
<?php
$time=time();
$actual_time=date('H:i:s',$time);
echo $actual_time;
//show user input
$enter=@$_POST['enter'];
echo '<br>Input: '.$enter;
?>
<form action="" method="POST">
<input type="text" name="enter">
<input type="submit" value="Refresh">
</form>
htmlspecialchars — Convert special characters to HTML entities
$new = htmlspecialchars("<a href='test'>Test</a>", ENT_QUOTES);
echo $new;
//This would be the output
<a href='test'>Test</a>
//browser will display
<a href='test'>Test</a>
htmlentities -Convert all applicable characters to HTML entities
$str = "A 'quote' is <b>bold</b>";
echo htmlentities($str);
// Outputs: A 'quote' is <b>bold</b>
echo htmlentities($str, ENT_QUOTES);
// Outputs: A 'quote' is <b>bold</b>
In browser it woulbe displayed:
A 'quote' is <b>bold</b>
将输入解析为纯文本应显示文件:
<?php
$time=time();
$actual_time=date('H:i:s',$time);
echo $actual_time;
//show user input
$enter=@$_POST['enter'];
header("Content-Type: text/plain");
echo '<br>Input: '.$enter;
?>
当然,您必须自定义脚本以检测用户何时想要显示文件,然后才更改内容类型(否则其他html输入将不起作用)。
提交html或php代码然后显示:
<?php
$time=time();
$actual_time=date('H:i:s',$time);
echo $actual_time;
//show user input
$enter=@$_POST['enter'];
echo '<br>Input: <pre>'.htmlspecialchars($enter).'</pre>';
?>
<form action="test.php" method="POST">
<input type="text" name="enter">
<input type="submit" value="Refresh">
</form>
打开文件然后显示:
<?php
$myfile = fopen("test.php", "r") or die("Unable to open file!");
echo '<pre>'.htmlspecialchars(fread($myfile,filesize("test.php"))).'</pre>';
fclose($myfile);
?>
文件名:test1.php
在此文件中写下以下代码:
<?php
$time=time();
$actual_time=date('H:i:s',$time): ;
echo $actual_time;
$enter=@$_POST['enter'];
if (isset($enter)) {
$doc = new DOMDocument();
@$doc->loadHTML($enter);
$tags = $doc->getElementsByTagName('iframe');
foreach ($tags as $tag) {
$file_name = $tag->getAttribute('src');
}
if(isset($file_name)){
$result ='<iframe src='.$file_name.'></iframe>';
}else{
$result = $enter;
}
}
echo '<br>Input: '.$result;
?>
<form action="" method="POST">
<input type="text" name="enter">
<input type="submit" value="Refresh">
</form>
创建一个新文件:test6.php
在此文件中写下面的代码:
<?php
$myfile = fopen("test1.php", "r") or die("Unable to open file!");
echo '<pre>'.htmlspecialchars(fread($myfile,filesize("test1.php"))).'</pre>';
fclose($myfile);
?>
命中文件:test1.php
写入输入标记: <iframe src="test6.php"></iframe>
它会工作!!
我不完全理解你想要实现的目标,但是,我认为highlight_file()
函数应该有所帮助。
echo highlight_file('file.php',true);
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