如何将PHP变量用作iframe元素的URL [英] How to use a PHP variable as an URL for an iframe element

查看：195 发布时间：2018/3/13 21:15:13 php forms url iframe

本文介绍了如何将PHP变量用作iframe元素的URL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

我对PHP很陌生（在CodeAcademy学习它），我想用来制作一个网页浏览器。这是我到目前为止：<br/> <br/> </p><pre> <code><！DOCTYPE html> <br/>< html> <br/>< body> <br/><？php <br/> $ url = $ _GET ['url']; <br/> print $ url; <br/>？> <br/> <br/>< form name =inputmethod =get> <br/> Url：< input type =textname =urlaction =<？php echo $ url;？>> <br/>< input type =submitvalue =Go> <br/>< / form> <br/> <br/>< iframe src =<？php echo $ url;？>> <br/>< p>您的浏览器不支援iframe。< / p> <br/>< / iframe> <br/>< / body> <br/>< / html> <br/> </code> </pre><p>上面的代码块是一个.php文件。我的问题是，iframe会导致我的域名的URL输入URL。更好的解释<a href=\"http://creativecloudinc.x10.mx/Test.php\" rel=\"nofollow\">在这里</a>。</p> <br/> <br/> <p>我尝试使用<code> $ partial = substr（$ url，x，y）</code>并使iframe </em>导致<code> echo $ partial </code>，这样原始域名就会被删除，只有您输入的网址位于iframe网址中。这没有用。我该如何解决这个问题？</p> <b> <b> <b> <b> <b> <b>解决方案</div><p>只要检查网址是否有http：// b $ b else您的脚本添加http：//<br/> <br/> </p><pre> <code><！DOCTYPE html> <br/>< html> <br/>< body> <br/><？php <br/> $ url = $ _GET ['url']; <br/> print $ url; <br/> if（strpos（$ url，'http'）=== 0）{//在位置0找到<br/> // ok <br/>} else {<br/> <br/> if （strpos（$ url，'google'）=== 0）或<br/>（strppos（$ url，'some.other.site1'）=== 0）或<br/>（strppos（$ url ，'some.other.site2'）=== 0））//在这里所有的知识SSL - 网站（这不可能是最终的解决方案）<br/> {<br/> $ url ='https：// 。$网址; <br/>} else {<br/> $ url ='http：//'.$url; <br/>} <br/> <br/>} <br/> print'< br />'。$ url; <br/>？> <br/> <br/>< form name =inputmethod =get> <br/> Url：< input type =textname =urlaction =<？php echo $ url;？>> <br/>< input type =submitvalue =Go> <br/>< / form> <br/> <br/>< iframe src =<？php echo $ url;？>> <br/>< p>您的浏览器不支援iframe。< / p> <br/>< / iframe> <br/>< / body> <br/>< / html> <br/> </code> </pre><p> <br/><p>I'm very new to PHP (Learning it at CodeAcademy) and I wanted to make a web browser kind of thing using an <code>iframe</code>. This is what I have so far:</p><pre><code><!DOCTYPE html> <html> <body> <?php $url = $_GET['url']; print $url; ?> <form name="input" method="get"> Url: <input type="text" name="url" action="<?php echo $url; ?>"> <input type="submit" value="Go"> </form> <iframe src="<?php echo $url; ?>"> <p>Your browser does not support iframes.</p> </iframe> </body> </html> </code></pre><p>The block of code above is a .php file. My problem with this is that the iframe leads to the URL of my domain slash the URL you enter. A little better explanation <a href="http://creativecloudinc.x10.mx/Test.php" rel="nofollow">is here</a>.</p> <p>I tried using a <code>$partial = substr($url, x, y)</code> and making the <em>iframe</em> lead to <code>echo $partial</code> so that the original domain is cut out and only the URL you entered is in the iframe URL. That didn't work. How can I fix this?</p><div class="h2_lin"> 解决方案 </div><p>just check if the URL has a "http://" then proceed<br> else add a "http://" by your script</p><pre><code><!DOCTYPE html> <html> <body> <?php $url = $_GET['url']; print $url; if (strpos($url,'http') === 0) { //found at position 0 //ok } else { if ((strpos($url,'google') === 0) or (strppos($url,'some.other.site1') === 0) or (strppos($url,'some.other.site2') === 0)) // here all the knowns SSL - Sites (this can not be the ultimate solution) { $url = 'https://'.$url; } else { $url = 'http://'.$url; } } print '<br/>'.$url; ?> <form name="input" method="get"> Url: <input type="text" name="url" action="<?php echo $url; ?>"> <input type="submit" value="Go"> </form> <iframe src="<?php echo $url; ?>"> <p>Your browser does not support iframes.</p> </iframe> </body> </html> </code></pre><p> <p>这篇关于如何将PHP变量用作iframe元素的URL的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！</p> </div> <div class="arc-body-main-more"> <span onclick="unlockarc('774929');">查看全文</span> </div> </div> <div> </div> <div class="wwads-cn wwads-horizontal" data-id="166" style="max-width:100%;border: 4px solid #666;"></div> </div> </article> <div id="arc-ad-2" class="mb-1"> <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-5038752844014834" crossorigin="anonymous"></script> <ins class="adsbygoogle" style="display:block" data-ad-format="autorelaxed" data-ad-client="ca-pub-5038752844014834" data-ad-slot="3921941283"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); 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