StackOverflow2013

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2012-07-06T10:46:43.260
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2012-07-06T10:46:43.260
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<p>Create a simple html page with textarea and iframe first :</p> <pre><code><html> <head> <script type="text/javascript"> function data_submit() { document.form1.txt_data.value= document.form1.txt_html.value; } </script> <title>Try It yourself Online Editor</title> </head> <body> <form name="form1" id="form1" method="post" action="" > <table width="100%" cellspacing="0" cellpadding="0" border="1"> <tr > <td> <input type="submit" name="bt_submit" value="Click to Execute " align="top" onClick="data_submit();"/> </td> <td align="center">Output</td> </tr> <tr> <td width="50%" > <input type="text" name="txt_data" value="" style="visibility:hidden;" /> <textarea rows="35" width="90px" height="550px" cols="77" name="txt_html"> </textarea> </td> <td width="50%" style="border-width:10px;border-style:none;"> <iframe height="550px" width="100%" src="try_it.php" name="iframe_a"></iframe> </td> </table> </form> </body> </html> </code></pre> <p>Now code written by the user need to be displayed in the iframe so we need to store the code in a file. Write PHP code to create a file. following is the code create a file.</p> <pre><code> if(isset($_POST['bt_submit'])) { $file = "try_it.php"; $fp = fopen($file, 'w'); //Following code will store the content in textarea in a variable which will create a file. $content = $_POST['txt_data']; fwrite($fp, $content); fclose($fp); } ?> </code></pre> <p>Following php code is written to display a default output and changed output after submit button is clicked by the user.</p> <pre><code><?php if(isset($_POST['bt_submit'])) { echo trim($content); } else { echo "<html>\n"; echo "<body>\n"; echo "<h1>Hello World!!!</h1>\n"; echo "</body>\n"; echo "</html>\n"; } ?> </code></pre> <p>Now combine all the code and you will get a simple try it yourself editor.</p>
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