<div>
check out this script to be added to your page:<br />

<pre><code id="code-35312">&lt;script language=&quot;JavaScript&quot;&gt;
function validate(){
if(document.inputform.field1.value != &quot;&quot;){
if(document.inputform.field2.value != &quot;&quot;){
document.inputform.submit.disabled = false;
}
}
}
function disable(){
document.inputform.submit.disabled = true;
document.inputform.submit.value = &quot;Please wait... Form is being
submitted.&quot;;
}
&lt;/script&gt;
</code></pre>
</div>


check out this script to be added to your page:


<script language="JavaScript">
function validate(){
if(document.inputform.field1.value != ""){
if(document.inputform.field2.value != ""){
document.inputform.submit.disabled = false;
}
}
}
function disable(){
document.inputform.submit.disabled = true;
document.inputform.submit.value = "Please wait... Form is being
submitted.";
}
</script>


<div>
<div class="content wysiwyg-content">
I have an HTML form that gets user info and when they press the submit button it will add the data to the database and then display the information they just added. &nbsp;When the user is on the confirm page, if he pushes refresh it will resubmit the data to the database. &nbsp;I cannot check to see if the row already exists, because it is okay for there to be multiple rows that are the same (just with a different time stamp). &nbsp;What is the best way to prevent this from happening? &nbsp;Thanks!
</div>
</div>


I have an HTML form that gets user info and when they press the submit button it will add the data to the database and then display the information they just added.  When the user is on the confirm page, if he pushes refresh it will resubmit the data to the database.  I cannot check to see if the row already exists, because it is okay for there to be multiple rows that are the same (just with a different time stamp).  What is the best way to prevent this from happening?  Thanks!

If page is refreshed data is written twice to database

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.

MySQL is an open source, relational database management system that runs as a server providing multi-user access to a number of databases. Acquired by Oracle in 2009, it is frequently used in combination with PHP installations, powering most of the WordPress installations.