uwictech Posted October 19, 2009 Share Posted October 19, 2009 Hi All, I think I'm finally getting somewhere with pagination! I can now submit a query and get the correct number of records back with the correct number of pages. My only problem is, when I press the page numbers or the next button the records disappear. If anyone gets time, could you take a look at my code and tell me where I’m going wrong please? Jamie <?php require("conf.php"); //max displayed per page $per_page = 2; //get start variable $start = $_GET['start']; $udfin = $_POST['udf']; //count records $record_count = mysql_num_rows(mysql_query("SELECT * FROM cy_equ WHERE udf = $udfin")); //count max pages $max_pages = $record_count / $per_page; //may come out as decimal if (!$start) $start = 0; //display data $get = mysql_query("SELECT * FROM cy_equ WHERE udf = $udfin LIMIT $start, $per_page"); while ($row = mysql_fetch_assoc($get)) { // get data $id = $row['id']; $ext = $row['ext']; $equ = $row['equ']; echo $id." (".$ext.") (".$equ.")<br />"; } //setup prev and next variables $prev = $start - $per_page; $next = $start + $per_page; //show prev button if (!($start<=0)) echo "<a href='qqq.php?start=$prev'>Prev</a> "; //show page numbers //set variable for first page $i=1; for ($x=0;$x<$record_count;$x=$x+$per_page) { if ($start!=$x) echo " <a href='qqq.php?start=$x'>$i</a> "; else echo " <a href='qqq.php?start=$x'><b>$i</b></a> "; $i++; } //show next button if (!($start>=$record_count-$per_page)) echo " <a href='qqq.php?start=$next'>Next</a>"; ?> <h3> UDF Query </h3> <form name="form1" method="post" action="http://localhost/qqq.php"> <p> Input UDF: <input type="number" name="udf" value= "<?php echo $udfin; ?>" size="1" maxlength="4"/></p><br> <p><input type="submit" name="submit" value="GET DATA"/></p> </form> Quote Link to comment Share on other sites More sharing options...
cags Posted October 19, 2009 Share Posted October 19, 2009 When you look at the HTML source generated by the script, does the start attribute of the links appear to contain the right value? Quote Link to comment Share on other sites More sharing options...
sasa Posted October 19, 2009 Share Posted October 19, 2009 you must pass odf parameter via url Quote Link to comment Share on other sites More sharing options...
uwictech Posted October 20, 2009 Author Share Posted October 20, 2009 Hi both, thanks for your replies. The URL i am passing is <a href='qqq.php?start=2'>Next</a> I'm just getting myself confused! Quote Link to comment Share on other sites More sharing options...
cags Posted October 20, 2009 Share Posted October 20, 2009 On your first page submission (ie when you first type in a udf) you are using $_POST['udf'] to find out which udf you wish to look at. Since as soon as you click on a link to another page the $_POST array will be reset you will need to persist the value by amending it to your url. So you URL will be page.php?udf=1&start=2. You will then need to make edit your code to use this value, a quick demo (that's perhaps not perfect)... if(isset($_POST['udf'])) { $udfin = $_POST['udf']; } elseif(isset($_GET['udf'])) { $udfin = $_GET['udf']; } else { $udfin = 1; // some default value } You will also need to edit your pagination to add udf=$udfin to each link. Quote Link to comment Share on other sites More sharing options...
uwictech Posted October 20, 2009 Author Share Posted October 20, 2009 Thanks for your input Pete. I think I have been looking at this to long, it's taken up so much of my time, I'm willing to give anything to get this to work! I have made some changes, I don't this they are correct as its defaulting to the default number given in the, if else statement at the top of my code when I press the next button. I know I useless at this guy's, I can't tell you how much I would appreciate it if someone could help me further. Jamie <?php require("conf.php"); //max displayed per page $per_page = 5; //get start variable $start = $_GET['start']; if(isset($_POST['udf'])) { $udfin = $_POST['udf']; } elseif(isset($_GET['udf'])) { $udfin = $_GET['udf']; } else { $udfin = 1; } //count records $record_count = mysql_num_rows(mysql_query("SELECT * FROM cy_equ WHERE udf = $udfin")); //count max pages $max_pages = $record_count / $per_page; //may come out as decimal if (!$start) $start = 0; //display data $get = mysql_query("SELECT * FROM cy_equ WHERE udf = $udfin LIMIT $start, $per_page"); while ($row = mysql_fetch_assoc($get)) { // get data $id = $row['id']; $ext = $row['ext']; $equ = $row['equ']; $udf = $row['udf']; $udf1 = $row['udf1']; $udf2 = $row['udf2']; echo " ID (".$id.") EXT (".$ext.") EQU (".$equ.") UDF (".$udf.") UDF1 (".$udf1.") UDF2 (".$udf2.")<br />"; } //setup prev and next variables $prev = $start - $per_page; $next = $start + $per_page; //show next button if (!($start>=$record_count-$per_page)) echo " <a href='qqq.php?udf=1&start=2'>Next</a>"; //show prev button if (!($start<=0)) echo "<a href='qqq.php?udf=1&start=2'>Prev</a> "; //show page numbers //set variable for first page $i=1; for ($x=0;$x<$record_count;$x=$x+$per_page) { if ($start!=$x) echo " <a href='qqq.php?start=$x'>$i</a> "; else echo " <a href='qqq.php?start=$x'><b>$i</b></a> "; $i++; } ?> <h3> UDF Query </h3> <form name="form1" method="post" action="http://localhost/qqq.php"> <p> Input UDF: <input type="number" name="udf" value= "<?php echo $udfin; ?>" size="1" maxlength="4"/></p><br> <p> Q = <font color="red"><?php echo $id; ?> </font> </p> <p> EXT = <font color="red"><?php echo $ext; ?> </font> </p> <p> EQU = <font color="red"><?php echo $equ; ?> </font></p> <p> UDF = <font color="red"><?php echo $udf; ?> </font></p> <p> UDF2 = <font color="red"><?php echo $udf2; ?> </font></p> <p> UDF3 = <font color="red"><?php echo $udf3; ?> </font></p> <p><input type="submit" name="submit" value="GET DATA"/></p> </form> Quote Link to comment Share on other sites More sharing options...
sasa Posted October 20, 2009 Share Posted October 20, 2009 try <?php require("conf.php"); //max displayed per page $per_page = 5; //get start variable if (isset($_GET['start']))$start = $_GET['start']; else $start = 0; if(isset($_POST['udf'])) { $udfin = $_POST['udf']; } elseif(isset($_GET['udf'])) { $udfin = $_GET['udf']; } else { $udfin = 1; } //count records $record_count = mysql_num_rows(mysql_query("SELECT * FROM cy_equ WHERE udf = $udfin")); //count max pages $max_pages = $record_count / $per_page; //may come out as decimal if (!$start) $start = 0; //display data $get = mysql_query("SELECT * FROM cy_equ WHERE udf = $udfin LIMIT $start, $per_page"); while ($row = mysql_fetch_assoc($get)) { // get data $id = $row['id']; $ext = $row['ext']; $equ = $row['equ']; $udf = $row['udf']; $udf1 = $row['udf1']; $udf2 = $row['udf2']; echo " ID (".$id.") EXT (".$ext.") EQU (".$equ.") UDF (".$udf.") UDF1 (".$udf1.") UDF2 (".$udf2.")<br />"; } //setup prev and next variables $prev = $start - $per_page; $next = $start + $per_page; //show next button if (!($start>=$record_count-$per_page)) echo " <a href='qqq.php?udf=$udfin&start=$next'>Next</a>"; //show prev button if (!($start<=0)) echo "<a href='qqq.php?udf=$udfin&start=$prev'>Prev</a> "; //show page numbers //set variable for first page $i=1; for ($x=0;$x<$record_count;$x=$x+$per_page) { if ($start!=$x) echo " <a href='qqq.php?udf=$udfin&start=$x'>$i</a> "; else echo " <a href='qqq.php?udf=$udfin&start=$x'><b>$i</b></a> "; $i++; } ?> <h3> UDF Query </h3> <form name="form1" method="post" action="http://localhost/qqq.php"> <p> Input UDF: <input type="number" name="udf" value= "<?php echo $udfin; ?>" size="1" maxlength="4"/></p><br> <p> Q = <font color="red"><?php echo $id; ?> </font> </p> <p> EXT = <font color="red"><?php echo $ext; ?> </font> </p> <p> EQU = <font color="red"><?php echo $equ; ?> </font></p> <p> UDF = <font color="red"><?php echo $udf; ?> </font></p> <p> UDF2 = <font color="red"><?php echo $udf2; ?> </font></p> <p> UDF3 = <font color="red"><?php echo $udf3; ?> </font></p> <p><input type="submit" name="submit" value="GET DATA"/></p> </form> Quote Link to comment Share on other sites More sharing options...
uwictech Posted October 21, 2009 Author Share Posted October 21, 2009 Thanks Sasa, that worked brilliantly!!! One more thing if possible? I have set up dynamaic pages so that if someone clicks on a link to go to the udf search page the url looks like this http://localhost/index1.php?page=udfsearch When I setup the next buttons they obviously run on the same page, at the moment the link is set up run on my test page which is called qqq so the link is <a href='qqq.php?udf=$udfin&start=$next'>Next</a>"; If I want it to run on my dynamic page what do I change the link to? Jamie Quote Link to comment Share on other sites More sharing options...
cags Posted October 21, 2009 Share Posted October 21, 2009 http://localhost/index1.php?page=udfsearch&udf=$udfin&start=$next Quote Link to comment Share on other sites More sharing options...
uwictech Posted October 21, 2009 Author Share Posted October 21, 2009 I thought it may have been the &, thanks Pete. If I wanted to put that inside an HTML button, is that possible? Jamie Quote Link to comment Share on other sites More sharing options...
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