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POPhp-javascript code working only once
primarykey
Id
18927373
data
AcceptedAnswerId
18927496
AnswerCount
2
ClosedDate
CommentCount
6
CommunityOwnedDate
CreationDate
2013-09-20T23:40:01.807
FavoriteCount
0
LastActivityDate
2013-09-20T23:59:02.510
LastEditDate
LastEditorUserId
0
OwnerUserId
1694699
ParentId
0
PostTypeId
1
Score
1
ViewCount
189
LastEditorDisplayName
text
Body
<p>I have simple code that inserts values to database without page refresh using javascript. The problem is that when I use "onchange" atrribute in method to call the function the code works fine and value is inserted but when i remove "onchange" form and use a Button "onclick" attribute to call same method it works on once and then stops working.</p> <p>The code of my <strong>comment.html</strong> file is</p> <pre><code> <html> <head> <script> function showUser(str) { if (str=="") { document.getElementById("txtHint").innerHTML=""; return; } if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { document.getElementById("txtHint").innerHTML=xmlhttp.responseText; } } xmlhttp.open("GET","getuser.php?q="+str,true); xmlhttp.send(); } </script> </head> <body> <form method="GET"> <input type="text" name="q"> <button method="GET" onclick="showUser(q.value)">Submit</button> </form> <br> <div id="txtHint"><b>Person info will be listed here.</b></div> </body> </html> </code></pre> <p>And the code of my <strong>getuser.php</strong> file is:</p> <pre><code> <?php $q = intval($_GET['q']); $con = mysqli_connect('localhost','root','','login'); if (!$con) { die('Could not connect: ' . mysqli_error($con)); } mysqli_select_db($con,"ajax_demo"); $sql2= "INSERT INTO `users` ( `FirstName`) VALUES( '{$_GET['q']}') "; $result = mysqli_query($con,$sql2); while($row = $result) { echo "<tr>"; echo "<td>" . $row['FirstName'] . "</td>"; echo "</tr>"; } echo "</table>"; mysqli_close($con); ?> </code></pre>
Tags
<javascript><php><html><mysql><sql>
Title
Php-javascript code working only once
singulars
PostAcceptedAnswerId
1. PO
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  PostTypePostTypeId
  PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USofnowhere
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1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
  singulars
  PostTypePostTypeId
  PTAnswer
2. PO
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  PTAnswer
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1. VO
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  POPhp-javascript code working only once
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CommentsPostId

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