I am having a few problems returning records from a mySQL database using PHP.
Firstly I must say I am trying to create a video album using MySQL, PHP and using pagination.
My first problem is if I want to retrieve the first 3 records, only the first record is retrieved and then the next two records are duplicates of the first record.
My second problem is if I want to retrieve all of the records (there are currently 3), only the total-1 records are returned - I can not retrieve the last record.
Below is my PHP code for the script:
Firstly I must say I am trying to create a video album using MySQL, PHP and using pagination.
My first problem is if I want to retrieve the first 3 records, only the first record is retrieved and then the next two records are duplicates of the first record.
My second problem is if I want to retrieve all of the records (there are currently 3), only the total-1 records are returned - I can not retrieve the last record.
Below is my PHP code for the script:
Code:
<?php
//Connect to the database
$user="USERNAME";
$password="PASSWORD";
$database="DATABASE";
$con = mysql_connect("localhost",$user,$password) or die ('Could not connect: ' . mysql_error());
mysql_select_db($database, $con) or die( "Unable to select database");
// find out how many rows are in the table
$sql = "SELECT * FROM vids";
$result = mysql_query($sql, $con);
$r = mysql_fetch_row($result);
$numrows = $r[0];
// number of rows to show per page
$rowsperpage = 1;
// find out total pages
$totalpages = ceil($numrows / $rowsperpage);
// get the current page or set a default
if (isset($_GET['currentpage']) && is_numeric($_GET['currentpage'])) {
// cast var as int
$currentpage = (int) $_GET['currentpage'];
} else {
$currentpage = 1;
}
// if current page is greater than total pages...
if ($currentpage > $totalpages) {
// set current page to last page
$currentpage = $totalpages;
} // end if
// if current page is less than first page...
if ($currentpage < 1) {
// set current page to first page
$currentpage = 1;
}
// the offset of the list, based on current page
$offset = ($currentpage - 1) * $rowsperpage;
// get the info from the db
$sql = "SELECT * FROM vids LIMIT $offset, $rowsperpage";
$result = mysql_query($sql, $con) or trigger_error("SQL", E_USER_ERROR);
// Assign variables for videos
$query = "SELECT * FROM vids";
$result = mysql_query($query) or die ('Error: '.mysql_error ());
$row = mysql_fetch_row($result);
$id = $row[0];
$url = $row[1];
$page_url = $row[2];
$title = $row[3];
$desc = $row[4];
$date_add = $row[5];
$date_rec = $row[6];
$place = $row[7];
$altitude = $row[8];
$jump_no = $row[9];
// while there are rows to be fetched...
while ($list = mysql_fetch_assoc($result)) {
// echo data
$id = $row[0];
$url = $row[1];
$page_url = $row[2];
$title = $row[3];
$desc = $row[4];
$date_add = $row[5];
$date_rec = $row[6];
$place = $row[7];
$altitude = $row[8];
$jump_no = $row[9];
echo "<div class='sky_cont'>
<div class='sky_vid'><a class='video' href=\"$url\"><img src='http://www.netlinksurveyors.co.uk/test/images/lgo.jpg' alt=\"$title\" Border='0' /></a></div>
<p><h4><a href=\"$page_url\" target='_blank'>$title</a></h4>$desc</p>
</div>";
}
/****** build the pagination links ******/
// if not on page 1, don't show back links
if ($currentpage > 1) {
// show << link to go back to page 1
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=1'><<</a> ";
// get previous page num
$prevpage = $currentpage - 1;
// show < link to go back to 1 page
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$prevpage'><</a> ";
}
// range of num links to show
$range = 3;
// loop to show links to range of pages around current page
for ($x = ($currentpage - $range); $x < (($currentpage + $range) + 1); $x++) {
// if it's a valid page number...
if (($x > 0) && ($x <= $totalpages)) {
// if we're on current page...
if ($x == $currentpage) {
// 'highlight' it but don't make a link
echo " [<b>$x</b>] ";
// if not current page...
} else {
// make it a link
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$x'>$x</a> ";
}
}
}
// if not on last page, show forward and last page links
if ($currentpage != $totalpages) {
// get next page
$nextpage = $currentpage + 1;
// echo forward link for next page
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$nextpage'>></a> ";
// echo forward link for lastpage
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$totalpages'>>></a> ";
} // end if
/****** end build pagination links ******/
?>
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