StackOverflow2013

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plurals

PO
primarykey
Id
11731945
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2012-07-31T01:31:53.833
FavoriteCount
0
LastActivityDate
2012-07-31T01:37:53.690
LastEditDate
2012-07-31T01:37:53.690
LastEditorUserId
785241
OwnerUserId
785241
ParentId
11731761
PostTypeId
2
Score
3
ViewCount
0
LastEditorDisplayName
text
Body
You can't mix php and javascript like that.. php is a server-side language, while javascript is client-side; php renders the page before the user sees it, while javascript modifies the page without refreshing. Any php values in your js will get rendered and output before the js even executes. In order to do what you need, you need to use ajax, which is asynchronous javascript and xml, a method of client-server communication that allows for what you want to happen. To do this, I would suggest <a href="http://jquery.com/" rel="nofollow">jQuery</a>, a javascript library which makes such requests very simple. As an example of how you would make such a request in jquery.... The <a href="http://api.jquery.com/jQuery.ajax/" rel="nofollow"><code>jQuery.ajax()</code></a> method: <pre><code>$.ajax({ url: "validate.php", type: "POST", data: "username=" + username, sucesss: function(data) { if (data == 1) $("#ajax_div").html("Username is taken, choose another!"); } else { $("#ajax_div").html("Username is free :)"); } } }); </code></pre> That would be how to do it in ajax, while your php file would either return a 1 or a 0 depending on the result of an sql query comparing usernames in the database. To do this without jquery, it would be something like this: <pre><code>function checkUsername() { var xmlhttp; 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) { if (xmlhttp.responseText == 1) { document.getElementById('ajax_div').innerHTML = "Username is taken, please choose another!"; } else { document.getElementById('ajax_div').innerHTML = "Username is free :)"; } } } xmlhttp.open("POST","validate.php",true); xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded"); xmlhttp.send("username=" + username); } } </code></pre>
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POjavascript validate form values from database
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 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USDaedalus
UserOwnerUserId
1. USDaedalus
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. POjavascript validate form values from database
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 PTQuestion
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
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 PostPostId
 PO
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 This table or related slice is empty.
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 VTAcceptedByOriginator
2. VO
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 This table or related slice is empty.
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 VTUpMod
CommentsPostId
1. This table or related slice is empty.

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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.