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02.25.2008 at 10:01AM PST, ID: 23190972
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9.0

Paging results/allowing user to select how many per page

Asked by dnatal in PHP and Databases

Tags:

I'm displaying lines of results from a data search and I want the user to be able to display it n lines per page. It should show [page 1]  [page 2]  etc. and a drop down display "Display [100] lines". I can't figure out the best way to do this. Here is what I have at this point. The function "get_data_by_page is fine and works. The dropdown that should let the items per page change doesn't work, it just goes back to the default of 50 per page:Start Free Trial 
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$page = isset($_GET['page'])?$_GET['page']:1;
   $perpage = isset($_GET['perpage'])?$_GET['perpage']:50;
 
	   $direct_session_data = get_data_by_page('session_data sd, service s', $fields, $where, 's.service_id, sd.service_date',$page,$perpage);
		$total = get_total_page('session_data sd, service s',$where);
		$num_pages = $total / $perpage;
		if($num_pages > 1){
   
			$out_str .= "<div align='center'>";
			for ($i=1;$i<=$num_pages;$i++){
				$out_str .= '<a href="' . $_SERVER['PHP_SELF'] . '?get_old=1&perpage='.$perpage.'&detail=' . $detail .'&page=' . $i .'">[page ' . $i . ']</a>&nbsp;&nbsp;&nbsp;';  
			}
			$selected_10 = '';
			$selected_25 = '';
			$selected_50 = '';
			$selected_75 = '';
			$selected_100 = '';
			$selected_200 = '';
			if ($perpage == 10) $selected_10 = 'selected="selected"';
			if ($perpage == 25) $selected_25 = 'selected="selected"';
			if ($perpage == 50) $selected_50 = 'selected="selected"';
			if ($perpage == 75) $selected_75 = 'selected="selected"';
			if ($perpage == 100) $selected_100 = 'selected="selected"';
			if ($perpage == 200) $selected_200 = 'selected="selected"';
			$out_str .= '
<form action="' . $_SERVER['PHP_SELF'] . '?get_old=1&detail=' . $detail .'&page=1" method="POST" id="firstDisplayForm" class="listDisplayCountForm"><div class="formRow"><span class="formName"><label for="firstDisplayCount">Display:</label>
</span><span class="formValue"><select id="perpage" name="perpage" style="width: 50px;">
  <option value="10" '.$selected_10.'>10</option>
  <option value="25" '.$selected_25.'>25</option>
  <option value="50" '.$selected_50.'>50</option>
  <option value="100" '.$selected_100.'>100</option>
  <option value="200" '.$selected_200.'>200</option>
</select>
</span></div></form>
<script type="text/javascript">
var firstSelect = document.getElementById(\'perpage\');
var firstForm = document.getElementById(\'firstDisplayForm\');
initfirst();
function initfirst() {
   firstSelect.onchange = function(){firstForm.submit();}}
</script>	
	';
[+][-]02.25.2008 at 10:48AM PST, ID: 20978083

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About this solution

Zone: PHP and Databases
Tags: PHP, mySQL, Javascript
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Solution Provided By: routinet
Participating Experts: 1
Solution Grade: A
 
 
[+][-]02.25.2008 at 11:19AM PST, ID: 20978340

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

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[+][-]02.25.2008 at 11:21AM PST, ID: 20978357

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 7-day free trial to view this Author Comment or ask the Experts your question.

 
 
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