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Executing a Php Mysql function from Onclick NO POST

I have a php Mysql interaction and i wish to trigger the Mysql Search through an ONCLICK event.
iv thought about using a JS function or JQ and parsing the ID of selected through JS function but then im unsure as how i would re-execute the php to re-search the database with the new JS Veriable...
The code below is accurate and is what im working with...
How would i re execute the php with the new ID.. Much appreciated..
<div class="contentheader">
<header> Welcome Please Choose a Catagory</strong></header>
</div>
<div id='smallpagination' class='smallpagination'>
<?php
//search according to chosen search critera NOT LIMITED//
include("conect.php");
$startit = 0;
$startfrom = rand(0, 20);
$displayto = $startfrom + 10;
$search = "";
$startedfrom = $startfrom;
$sql = "SELECT * FROM testdata
WHERE title LIKE '%%$search%%'
LIMIT $startfrom , $displayto";
// check how many results //
$result = $conn->query($sql);
$row_cnt = $result->num_rows;
while ($row = mysqli_fetch_assoc($result)) {
$videos = $row['videos'];
$v_id = $row['id']; //<!---important is Video ID and needed for video click selection---->
$id = $row['id'];
$Name = $row['Name'];
if (empty($Name)) {
$Name = 'Annonymous';
}
$image = $row['image'];
$info = $row['info'];
if (empty($info)) {
$info = 'Contact Listee (if Provided) , No Item Information Given';
}
$phone = $row['phone'];
if (empty($phone)) {
$phone = 'See Listing';
}
$title = $row['title'];
$locate = $row['locate'];
if (empty($locate)) {
$locate = 'Not Provided';
}
$postcoded = $row['postcode'];
if (empty($postcoded)) {
$postcoded = '???';
}
$price = $row['price'];
if (empty($price)) {
$price = '?';
}
if ($price == '0') {
$price = '?';
}
$date = $row['stamp'];
if (empty($date)) {
$date = '';
}
if ($startit < 1) {
$gotid = $row['id'];
$startit = $startit + 1;
};
$vidd = $row['id'] - 0.01;
$pidd = $row['id'] - 0.02;
$type = $row['type'];
$showinglocate = $row['id'] - 0.03;
$showingphone = $row['id'] - 0.04;
$displaytype = "minlist";
//Thumbnails sized listings
if ($displaytype == "minlist") {
echo "
<div class='floaterminhomepage'>
<div class='innerfloaterminhomepage' >";
if (!empty($videos)) {
echo "
<video id='$v_id' style='position:absolute; top:0%; left:0%; width:100%; height:100%; background-size: cover; object-fit:fill;' preload='metadata' onclick='showdata({$v_id});'>
<source src='vid/{$row['videos']}.mp4' type='video/mp4'>
<source src='vid/{$row['videos']}.mp4' type='video/ogg'>
<source src='vid/{$row['videos']}.mp4' type='video/webm'>
</video >";
}
if (empty($videos)) {
echo "<img id='$vidd' src='pageimages/blank.png' style='position:absolute; top:0%; left:0%; width:100%; height:100%;'>";
}
echo "
</div>
</div>
";
}
};
?>
</div> <!---smallpagination--->
<script>
------ > SHOWDATA
RETRIEVE
ID
SCRIPT
HERE < -----
</script>
Then re-execute the folling php
----HOW WOULD I GO ABOUT THIS RE_EXECUTION.
<?php
$displayto = $startfrom;
$sql = "SELECT * FROM testdata
WHERE id={$gotid};
";
// check how many results //
$result = $conn->query($sql);
$row_cnt = $result->num_rows;
while ($row = mysqli_fetch_assoc($result)) {
$videos = $row['videos'];
$v_id = $row['id']; //<!---important is Video ID and needed for video click selection---->
$Name = $row['Name'];
if (empty($Name)) {
$Name = 'Annonymous';
}
$image = $row['image'];
$info = $row['info'];
if (empty($info)) {
$info = 'Contact Listee (if Provided) , No Item Information Given';
}
$phone = $row['phone'];
if (empty($phone)) {
$phone = 'See Listing';
}
$title = $row['title'];
$locate = $row['locate'];
if (empty($locate)) {
$locate = 'Not Provided';
}
$postcoded = $row['postcode'];
if (empty($postcoded)) {
$postcoded = '???';
}
$price = $row['price'];
if (empty($price)) {
$price = '?';
}
if ($price == '0') {
$price = '?';
}
$date = $row['stamp'];
if (empty($date)) {
$date = '';
}
$type = $row['type'];
};
echo "<div id='smallpagdata' class='smallpagdata'>
ID={$v_id}<br>
NAME={$Name}<br>
TITLE={$title}<br>
INFO={$info}<br>
PHONE={$phone}<br>
LOCATION={$locate}<br>
PRICE={$price}<br>
Listed={$date}<br>
</div>";
?>

Does "NO POST" mean "no GET" as well? Otherwise you could put your retrieval script in a different file and call that with jQuery.get or XMLHttpRequest.

How to put validation on a dynamic dropdown when inserting in PHP?

I'm constructing a survey and I have a textbox that generates dynamic dropdowns based on user input which displays the same data.
This is the script
<script>
function load_questions(){
var xmlhttp=new XMLHttpRequest();
xmlhttp.open("GET","ajax.php??main=1&subcategory="+document.getElementById("subcategorydd").value +"&cnt="+document.getElementById("q_num").value,false);
xmlhttp.send(null);
document.getElementById("question").innerHTML=xmlhttp.responseText;
}
function checkValues() {
_values = [];
$('.form-control-static').each(function() {
_values.push($(this).val());
//console.log($(this).val());
});
sameValue = false;
for ($i = 0; $i < (_values).length; $i++) {
for ($w = 0; $w < (_values).length; $w++) {
if (_values[$i] === _values[$w] && $i != $w) {
sameValue = true;
}
}
}
if (sameValue) {
alert('has the same value .');
return false;
}
alert('there is no the same value');
//do something .
}
</script>
This is the insert code when I'm creating the survey
<?php
$con = mysqli_connect("localhost","root","","imetrics");
if(isset($_POST['submit'])){
$title = $_POST['surveytitle'];
$catdd = $_POST['catdd'];
$subcatdd = $_POST['subcatdd'];
$gender = $_POST['gender'];
$age = $_POST['age'];
$occupation = $_POST['occupation'];
$occupationtwo = $_POST['occupdd'];
$relstatus = $_POST['relationshipstatus'];
$q_num = $_POST['q_num'];
$insert = mysqli_query($con, "INSERT INTO `surveyform` (`surveytitle`,`surveycategory`,`surveysubcategory`,`gender`,`age`,`occupation`,`occupation_status`,`status`) VALUES ('$title','$catdd','$subcatdd','$gender','$age','$occupation','$occupationtwo','$relstatus')");
if(!$insert){
echo mysqli_errno();
}
else{
$getMaxID = mysqli_query($con, "SELECT MAX(survey_id) as maxid FROM surveyform");
$row_2 = mysqli_fetch_array($getMaxID);
$survey_id = $row_2[0];
for( $a = 1; $a <= $q_num; $a++)
{
mysqli_query($con, "INSERT INTO surveyform_questions ( survey_id, question_id) VALUES ('$survey_id', ". $_POST['question_dropdowns'.$a] .")");
//echo "INSERT INTO surveyform_questions ( survey_id, question_id) VALUES ('$survey_id', ". $_POST['question_dropdowns'.$a] .")";
}
echo '<script language="javascript">';
echo 'alert("Survey Created!")';
echo '</script>';
}
}
?>
And this is my dropdown code
if($question !="" && $cnt!="" && $addQues!="yes" && $main != 1){
$i = 0;
for ($i = 1; $i <= $cnt; $i++)
{
$query=mysqli_query($con, "SELECT * FROM question WHERE question_subcat = $question ");
echo "<b>Question #". $i."</b>";
echo "<select id='question_dropdown".$i."' class='form-control-static' name='question_dropdowns".$i."'>";
echo "<option selected>"; echo "Select"; echo "</option>";
while($row=mysqli_fetch_array($query))
{
echo "<option value='$row[question_id]'>";
echo $row["questiontitle"];
echo "</option>";
}
echo "</select>";
echo "<br />";
}
echo "<div id='insertQuesHere".$i."'></div>";
echo "<a href='#add_question' onclick='return addQues();'>Add Question</a>";
}
here's my submit button
<input type="submit" name="" id="btnSaveSurvey" class="form-control-static" onclick="checkValues();" value="check" />
What's the validation code that will prevent me from inserting if the data chosen from the dropdown is the same? For example I generated 2 dropdowns and I chose the same datas from the dropdown, what's the validation code for it?

Please call checkValues method your submit button click
<input type="submit" name="" id="btnSaveSurvey" class="form-control-static" onclick="checkValues();" value="check" />
checkValues method below :
function checkValues() {
_values = [];
$('.form-control-static').each(function() {
_values.push($(this).val());
//console.log($(this).val());
});
sameValue = false;
for ($i = 0; $i < (_values).length; $i++) {
for ($w = 0; $w < (_values).length; $w++) {
if (_values[$i] === _values[$w] && $i != $w) {
sameValue = true;
}
}
}
if (sameValue) {
alert('has the same value .');
return false;
}
alert('there is no the same value');
//do something .
}
Also , you can see an example Example

PHP does not receive parameters from Ajax request [closed]

Closed. This question needs debugging details. It is not currently accepting answers.
Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 7 years ago.
Improve this question
I want to call PHP script that change some content of HTML file.
First, I have HTML with a button. When I click this button, it call a javascript function which will post some parameters to PHP script. This script will take the parameters and generate the content that will be displayed in the HTML.
1) First, I were have form tag that send post action to the php. I delete this form tag from the HTML.
2) Then, I call jsFunction() "javascript function" when clicking "Run" button in the HTML.
onclick="jsFunction();"
3) I create javascript function:
jsFunction(){
var url = "calculateResult.php";
var params = "querySeq=querySeq&program=program&patientIDarray=patientIDarray&blast_flag=blast_flag";
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200) {
// change the content of the div in second tab
document.getElementById("result").innerHTML = xhttp.responseText;
}
};
xhttp.open("POST", url+"?"+params, true);
xhttp.send();
}
4) PHP file send replay to the javascript via echo statement.
Now, I think PHP does not receive any parameters from the javascript function!
Is there something wrong in my code?
Edit 1:
One of the steps in the php is generate text file and put one of the parameters "querySeq" in that file. When I open the file, it is empty.
The PHP file:
<?php
include("C:/inetpub/wwwroot/webclient/js-i2b2/cells/plugins/examples/BLAST/assets/include/path.inc");
$jobid = (empty($_GET['jobid'])) ? '' : $_GET['jobid'];
$blastdb = (empty($_POST['blastdb'])) ? '' : $_POST['blastdb'];
$blastpath = (empty($_POST['blastpath'])) ? '' : $_POST['blastpath'];
$patientIDarray = (empty($_POST['patientIDarray'])) ? '' : $_POST['patientIDarray'];
$opt = (empty($_GET['opt'])) ? '' : $_GET['opt'];
$blast_flag = (empty($_POST['blast_flag'])) ? 1 : $_POST['blast_flag'];
$filter_flag = (empty($_POST['filter_flag'])) ? '' : $_POST['filter_flag'];
$filt_val = (empty($_POST['filt_val'])) ? '' : $_POST['filt_val'];
$cutoffType = (empty($_POST['cutoffType'])) ? '' : $_POST['cutoffType'];
$pct_cutoff = (empty($_POST['pct_cutoff'])) ? '' : $_POST['pct_cutoff'];
$blst_cutoff = (empty($_POST['blst_cutoff'])) ? '' : $_POST['blst_cutoff'];
$searchType = (empty($_POST['searchType'])) ? '' : $_POST['searchType'];
$program = (empty($_POST['program'])) ? '' : $_POST['program'];
$dot = (empty($_GET['dot'])) ? '' : $_GET['dot'];
$querySeq = (empty($_POST['querySeq'])) ? '' : $_POST['querySeq'];
$blastagainstfile = (empty($_FILES['blastagainstfile']['name'])) ? '' : $_FILES['blastagainstfile']['name'];
$alignmentView = (empty($_GET['alignmentView'])) ? '' : $_GET['alignmentView'];
if ($blast_flag == 1) {
$jobid = time().rand(10, 99);
}
if (!$blast_flag && !$jobid) {
echo "<p>Error: No job submitted.</p>";
footer();
exit;
}
if ($searchType == 'advanced') {
$expect=(empty($_POST['expect'])) ? 10 : $_POST['expect'];
$wordSize = (empty($_POST['wordSize'])) ? '' : $_POST['wordSize'];
$targetSeqs = (empty($_POST['targetSeqs'])) ? '' : $_POST['targetSeqs'];
$mmScore = (empty($_POST['mmScore'])) ? '' : $_POST['mmScore'];
$matrix = (empty($_POST['matrix'])) ? '' : $_POST['matrix'];
$gapCost = (empty($_POST['gapCost'])) ? '' : $_POST['gapCost'];
$filter = (empty($_POST['filter'])) ? 'F' : $_POST['filter'];
$softMask = (empty($_POST['softMask'])) ? 'F' : $_POST['softMask'];
$lowerCaseMask = (empty($_POST['lowerCaseMask'])) ? 'F' : $_POST['lowerCaseMask'];
$ungapAlign = (empty($_POST['ungapAlign'])) ? 'F' : $_POST['ungapAlign'];
$alignmentView = (empty($_POST['outFmt'])) ? 0 : $_POST['outFmt'];
$geneticCode = (empty($_POST['qCode'])) ? '' : $_POST['qCode'];
$dbGeneticCode = (empty($_POST['dbCode'])) ? '' : $_POST['dbCode'];
$otherParam = (empty($_POST['OTHER_ADVANCED'])) ? '' : $_POST['OTHER_ADVANCED'];
if ($otherParam) {
if (!preg_match("/^\s+$/", $otherParam) && !preg_match("/^\s*\-[A-Za-z]/", $otherParam)) {
echo "Error: The other advanced options must start with \"-\"";
exit;
}
}
$advanceParam = "$expect!#%$wordSize!#%$targetSeqs!#%$mmScore!#%$matrix!#%$gapCost!#%$filter!#%$softMask!#%$lowerCaseMask!#%$ungapAlign!#%$alignmentView!#%$geneticCode!#%$dbGeneticCode!#%$otherParam";
}else {
$advanceParam = "";
}
if (!$alignmentView) {
$alignmentView = 0;
}
if($blast_flag == 1) {
$nlstr = chr(10);
$crstr = chr(13);
if($querySeq || !preg_match("/^\s+$/", $querySeq)) {
# $fp1=fopen("$dataPath/$jobid.blastinput.txt", "w",1);
if (!$fp1)
{
echo "<p><strong> Error: couldn't open $dataPath/$jobid.blastinput.txt </strong></p></body></html>";
exit;
}
fwrite($fp1, $querySeq);
fclose($fp1);
}else {
echo "<p style='color: red'>Error: please enter your query sequence or upload your fasta sequence file.</p><br>";
exit;
}
}
if($cutoffType == 'pct') {
$criterion = $pct_cutoff;
}
if($cutoffType == 'blst') {
$criterion = $blst_cutoff;
}
if(!$opt || $opt == 'wait') {
$progressdot = "image/progressdot.png";
echo "<p><strong>Your job is being processed ";
for($i = 0; $i <= ($dot%6); $i++) {
echo "<img src='$progressdot'>";
}
echo "</strong></p>";
$dot += 1;
echo "<p>Your job id is $jobid.</p>";
echo "<p>Please wait here to watch the progress of your job.</p>";
echo "<p>This page will update itself automatically until search is done.</p>";
}
if(!$opt || $opt == 'wait') {
echo "<META HTTP-EQUIV=\"refresh\"
content=\"10;URL=blastresult.php?jobid=$jobid&alignmentView=$alignmentView&opt=wait&dot=$dot\">";
echo "<META HTTP-EQUIV=\"expires\"
CONTENT=\"now\">";
}
if($blast_flag == 1) {
$blastagainst = "";
if ($program == "blastn" || $program == "tblastn" || $program == "tblastx") {
$dbPath = "C:/inetpub/wwwroot/webclient/db/nucleotide";
}else {
$dbPath = "C:/inetpub/wwwroot/webclient/db/protein";
}
if($blastagainstfile) {
$blastagainst = "$dataPath/$jobid.blastagainst.txt";
}
if ($patientIDarray) {
for ($i = 0; $i < sizeof($patientIDarray); $i++) {
$blastagainst .= " $dbPath/$patientIDarray[$i]";
}
}
$blastpath = "C:/inetpub/wwwroot/webclient/blast/bin";
$basicParam = "$jobid\t$searchType\t$blastagainst\t$program\t$blastpath";
/*create child process to run perl script which do the blast search and write output data to apropriate files*/
/* For windows */
pclose(popen("start /b perl blast.pl \"$basicParam\" \"$advanceParam\"", "r"));
}
/* error log if there is error in BLAST */
$errFile = "$dataPath/$jobid.err";
/* parent process continue here to check child process done or not */
$filename = "$dataPath/$jobid.blaststring.txt";
if (file_exists($errFile) && filesize($errFile) > 0) {
if(!$opt || $opt == 'wait') {
echo "<script LANGUAGE=JavaScript>";
echo "location.replace('blastresult.php?jobid=$jobid&opt=none')";
echo "</script>";
}else {
echo "<p>There is error in executing BLAST. Following is the error message:<p>";
$fperr = fopen("$dataPath/$jobid.err", "r");
if(!$fperr) {
echo "<p><strong> $jobid.err error: $errors </strong></p></body></html>";
exit;
}
while (!feof($fperr))
{
$line = rtrim(fgets($fperr));
echo "$line<br>";
}
fclose($fperr);
}
}elseif(file_exists($filename)) {
if ($alignmentView) {
echo "<script LANGUAGE=JavaScript>";
echo "location.replace('data/$jobid.blast')";
echo "</script>";
}else {
if($blast_flag == 'Parse again') {
$print_flag = 0;
$cutoff_count = 0;
# $fpout=fopen("$dataPath/$jobid.par", "r");
if (!$fpout)
{
echo "<p><strong> $jobid.par error: $phperrormsg </strong></p></body></html>";
exit;
}
# $fpout3 = fopen("$dataPath/$jobid.out.par", "w", 1);
if(!$fpout3) {
echo "<p><strong> $jobid.out.par error: $errors </strong></p></body></html>";
exit;
}
while (!feof($fpout))
{
$fpout2_str = '';
$line = rtrim(fgets($fpout));
if (!$line) {
continue;
}
list($page, $query_name, $match_name, $score, $identities, $percentage, $e_value, $link) = preg_split("/\t/", $line);
if($cutoffType == 'pct') {
$subject = $percentage;
}else {
$subject = $score;
}
if($subject >= $criterion) {
fwrite($fpout3, "$page\t$query_name\t$match_name\t$score\t$identities\t$percentage\t$e_value\t$link\n");
$cutoff_count++;
}
}
fclose ($fpout);
fclose($fpout3);
# $fp = fopen("$dataPath/$jobid.blastcount.txt", "w", 1);
if(!$fp) {
echo "<p><strong> error: $php_errormsg </strong></p></body></html>";
exit;
}else {
fwrite($fp, "$cutoff_count\n");
}
fclose($fp);
}
$filename = "$dataPath/$jobid.blastcount.txt";
while(!file_exists($filename)) {}
if(!$opt || $opt == 'wait') {
echo "<script LANGUAGE=JavaScript>";
echo "location.replace('blastresult.php?jobid=$jobid&opt=none')";
echo "</script>";
}else {
# $fp = fopen("$dataPath/$jobid.blastcount.txt", "r");
if(!$fp) {
echo "<p><strong> error: $php_errormsg </strong></p></body></html>";
exit;
}
if(!feof($fp)) {
$cutoff_count = fgets($fp);
}
fclose($fp);
# $fp = fopen("$dataPath/$jobid.blaststring.txt", "r");
if(!$fp) {
echo "<p><strong> error: $php_errormsg </strong></p></body></html>";
exit;
}
if(!feof($fp)) {
$blastagainststring = rtrim(fgets($fp));
}
fclose($fp);
if($cutoff_count == 0) {
echo "<p>No comparison meets cutoff criterion. Please change expect value to blast again.</p>";
}else {
echo "<p><a href=data/$jobid.blast1.html target='_blank'>Inspect BLAST output</a><br>";
echo "<form action='blastresult.php?jobid=$jobid&opt=$opt' method='post'>";
echo "<p>Filter current page by score:</p>";
echo "<p> Show <select name='filt_val'>";
echo "<option value='0' selected>- All -";
echo "<option value='1'>Top score";
echo "<option value='5'>Top 5 scores";
echo "<option value='10'>Top 10 scores";
echo "</select> for each query sequence <input type='submit' name='filter_flag' value='Filter'></font></p>";
echo "<p>Re-parse current blast results (please select cutoff criterion):</p>";
echo "<p><table style='font-size: 12px'>";
echo "<tr><td><input type='radio' checked name='cutoffType' value='pct'>Similarity percentage</td><td></td>";
echo "<td>Cutoff %: </td><td><input type='text' name='pct_cutoff' value=95 size=6 maxlength=6></td></tr>";
echo "<tr><td><input type='radio' name='cutoffType' value='blst'>Blast score</td><td></td>";
echo "<td>Cutoff score: </td><td><input type='text' name='blst_cutoff' value=1000 size=6 maxlength=6></td>";
echo "<td><input type='submit' name='blast_flag' value='Parse again'>";
echo "</td></tr></table></p>";
echo "</form>";
echo "<form action='sequence.php?jobid=$jobid' method='post' target='_blank' onsubmit=\"return checkform(this);\">";
echo "<p>Retrieve and download subject sequences in FASTA format:</p>";
echo "<p><input type='checkbox' name='dldseq' value='all'> Check here to download All sequences... ";
echo "OR select particular sequences of interest below</p>";
echo "<p><input type='submit' value='Submit'> your selection of sequences to download</p>";
echo "<p><table border = 1 style='font-size:10px' width=100% class='sortable'>";
echo "<thead><tr align='center'><th>Query</th><th>Subject</th><th>Score</th><th>Identities (Query length)</th><th>Percentage</th><th>Expect</th></tr></thead>";
echo "<tbody>";
# $fp = fopen("$dataPath/$jobid.download.txt", "w", 1) or die("Cannot open file: $jobid.download.txt");
if($blast_flag == 'Parse again' || ($opt == 'none' && !$filter_flag)) {
# $fpout3=fopen("$dataPath/$jobid.out.par", "r");
if(!$fpout3) {
echo "<p><strong> error: $php_errormsg </strong></p></body></html>";
exit;
}
$i = 0;
$queryName = $preQueryName = "";
while(!feof($fpout3)) {
$row = fgets($fpout3);
if (!$row) {
continue;
}
$element = preg_split("/\t/", $row);
$page = $element[0];
$queryName = $element[1];
$target_name = $element[7];
$var_target = $page."\t".$element[1]."\t".$element[2];
if(count($element) != 1) {
if($queryName == $preQueryName) {
$i++;
}else {
$i = 0;
}
if($i < 10) {
echo "<tr align='center'><td>$element[1]</td><td align=left><input type='checkbox' id='checkedSeq' name='target[]' value='$var_target'>$target_name</td><td><a href=data/$jobid.blast$page.html#$element[1]$element[2] target='_blank'>$element[3]</a></td><td>$element[4]</td><td>$element[5]</td><td>$element[6]</td></tr>";
fwrite($fp, "$var_target\n");
}
}
$preQueryName = $queryName;
}
fclose($fpout3);
}
if($filter_flag == 'Filter')
{
# $fpout3=fopen("$dataPath/$jobid.out.par", "r");
if(!$fpout3) {
echo "<p><strong> error: $php_errormsg </strong></p></body></html>";
exit;
}
$i = 0;
while(!feof($fpout3)) {
$row = fgets($fpout3);
if (!$row) {
continue;
}
$element = preg_split("/\t/", $row);
$page = $element[0];
$target_name = $element[7];
$var_target = $page."\t".$element[1]."\t".$element[2];
if(count($element) != 1) {
if($filt_val != 0) {
if($i == 0) {
$query_name = $element[1];
echo "<tr align='center'><td>$element[1]</td><td align=left><input type='checkbox' id='checkedSeq' name='target[]' value='$var_target'>$target_name</td><td><a href=data/$jobid.blast$page.html#$element[1]$element[2] target='_blank'>$element[3]</a></td><td>$element[4]</td><td>$element[5]</td><td>$element[6]</td></tr>";
fwrite($fp, "$var_target\n");
$i++;
}elseif($query_name == $element[1] && $i < $filt_val) {
echo "<tr align='center'><td>$element[1]</td><td align=left><input type='checkbox' id='checkedSeq' name='target[]' value='$var_target'>$target_name</td><td><a href=data/$jobid.blast$page.html#$element[1]$element[2] target='_blank'>$element[3]</a></td><td>$element[4]</td><td>$element[5]</td><td>$element[6]</td></tr>";
fwrite($fp, "$var_target\n");
$i++;
}elseif($query_name != $element[1]) {
echo "<tr align='center'><td>$element[1]</td><td align=left><input type='checkbox' id='checkedSeq' name='target[]' value='$var_target'>$target_name</td><td><a href=data/$jobid.blast$page.html#$element[1]$element[2] target='_blank'>$element[3]</a></td><td>$element[4]</td><td>$element[5]</td><td>$element[6]</td></tr>";
$query_name = $element[1];
fwrite($fp, "$var_target\n");
$i=1;
}
}else {
echo "<tr align='center'><td>$element[1]</td><td align=left><input type='checkbox' id='checkedSeq' name='target[]' value='$var_target'>$target_name</td><td><a href=data/$jobid.blast$page.html#$element[1]$element[2] target='_blank'>$element[3]</a></td><td>$element[4]</td><td>$element[5]</td><td>$element[6]</td></tr>";
fwrite($fp, "$var_target\n");
}
}
}
fclose($fpout3);
}
fclose($fp);
echo "</tbody></table></form>";
echo "<p>Top";
}
}
}
}
?>
Edit 2:
I try the following for var params:
var params = 'querySeq='+querySeq+'&program='+program+'&patientIDarray='+patientIDarray+'&blast_flag='+blast_flag;
OR
var params = "querySeq=querySeq&program=program&patientIDarray=patientIDarray&blast_flag=blast_flag";
with
xhttp.open("POST", url, true);
xhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xhttp.send(params);
But, it does not works! The content in HTML does not changed.
It works only if I assign:
var params = "querySeq=querySeq&program=program&patientIDarray=patientIDarray&blast_flag=blast_flag";
with
xhttp.open("POST", url+"?"+params, true);
xhttp.send();
But, the received parameters are empty.
Any help please.
Thanks,
Edit 3:
It's working now. I did not pass parameters from HTML to JS file. Just by pass the parameters with onclick function
onclick=jsFunction(document.getElementById('some parameters').value)
Also I use:
var params = "querySeq="+querySeq+"&program="+program+"&patientIDarray="+patientIDarray
with
xhttp.open("POST", url, true);
xhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xhttp.send(params);
And it works!
Thanks everyone.

xhttp.open("POST", url+"?"+params, true);
xhttp.send();
You are making a POST request, implying that you are looking for the data in $_POST, but you have put all the data in the query string. It needs to go in the request body.
xhttp.open("POST", url, true);
xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xhttp.send(params);
PHP puts data from the query string in $_GET and data (with a recognised encoding) from the request body in $_POST. Unfortunately, it names the superglobal variables are the request methods where those places are commonly used to store data and not based on where the data actually is.

Working GET example:
<script>
function jsFunction() {
var url = "receive.php";
var params = "querySeq=querySeq&program=program&patientIDarray=patientIDarray&blast_flag=blast_flag";
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200) {
// change the content of the div in second tab
document.getElementById("result").innerHTML = xhttp.responseText;
}
};
xhttp.open("GET", url+"?"+params, true);
xhttp.send();
}
</script>
Working POST example:
<script>
function jsFunction() {
var url = "receive.php";
var params = "querySeq=querySeq&program=program&patientIDarray=patientIDarray&blast_flag=blast_flag";
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200) {
// change the content of the div in second tab
document.getElementById("result").innerHTML = xhttp.responseText;
}
};
xhttp.open("POST", url, true);
xhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xhttp.send(params);
}
</script>

Login in PHP with JS error messages

I'm creating a login script in PHP and JS. I would like to have a different error messages in my form but unfortunately not everything works fine. For example checking whether there is such a user is working well but if I type a properly email and incorrect password I will be redirected to profile.php?u=%3Cbr%20/%3E%3Cb%3ENotice%3C/(...). Where I made a mistake?
login.php
if(isset($_POST["e_l"])){
include_once("db/db_fns.php");
$e = mysqli_real_escape_string($db_conx, $_POST['e_l']);
$p = $_POST['p_l'];
$ip = preg_replace('#[^0-9.]#', '', getenv('REMOTE_ADDR'));
if($e == "" || $p == ""){
$message = preg_replace('/[\/_| -]+/', '', 'loginfailed');
echo $message;
exit();
} else {
$sql = "SELECT id, username, password, activated FROM users WHERE email='$e' LIMIT 1";
$query = mysqli_query($db_conx, $sql);
$row = mysqli_fetch_row($query);
$activated = $row['activated'];
$number = mysqli_num_rows($query);
if ($number <=0){
$message = preg_replace('/[\/_| -]+/', '', 'nouser');
echo $message;
exit();
} else {
if ($activated = '0') {
$message = preg_replace('/[\/_| -]+/', '', 'noactiv');
echo $message;
exit ();
} else {
$db_id = $row[0];
$db_username = $row[1];
$db_pass_str = $row[2];
if (password_verify ($p, $db_pass_str)) {
$_SESSION['userid'] = $db_id;
$_SESSION['username'] = $db_username;
$_SESSION['password'] = $db_pass_str;
setcookie("id", $db_id, strtotime( '+30 days' ), "/", "", "", TRUE);
setcookie("user", $db_username, strtotime( '+30 days' ), "/", "", "", TRUE);
setcookie("pass", $db_pass_str, strtotime( '+30 days' ), "/", "", "", TRUE);
$sql = "UPDATE users SET ip='$ip', lastlogin=now() WHERE username='$db_username' LIMIT 1";
$query = mysqli_query($db_conx, $sql);
echo $db_username;
exit();
} else{
$message = preg_replace('/[\/_| -]+/', '', 'loginfailed');
echo $message;
exit();
}
}
}
}
exit();
}
login.js
function login(){
var e_l = _("email_l").value;
var p_l = _("password_l").value;
if(e_l == "" || p_l == ""){
_("status_l").innerHTML = '<div class="message_b"><img src="images/error.gif"/> Fill out all of the form data</div>';
} else {
_("loginbtn").style.display = "none";
_("status_l").innerHTML = '<img src="images/wait.gif"/>';
var ajax = ajaxObj("POST", "login.php");
ajax.onreadystatechange = function() {
if(ajaxReturn(ajax) == true) {
if (ajax.responseText.trim() == "nouser"){
_("status_l").innerHTML = '<div class="message_b"><img src="images/error.gif"/> Wrong username</div>';
_("loginbtn").style.display = "block";
} else if (ajax.responseText.trim() == "noactiv"){
_("status_l").innerHTML = '<div class="message_b"><img src="images/error.gif"/> Your account is no active</div>';
_("loginbtn").style.display = "block";
} else if (ajax.responseText.trim() == "loginfailed"){
_("status_l").innerHTML = '<div class="message_b"><img src="images/error.gif"/> Login unsuccessful, please try again</div>';
_("loginbtn").style.display = "block";
} else {
window.location = "profile.php?u="+ajax.responseText;
}
}
}
ajax.send("e_l="+e_l+"&p_l="+p_l);
}
}

Judging by what you're saying and your code, it seems that password_verify isn't working for you. Are you sure the passowrd in the database has been hashed with PHP's password_hash?

PHP Pagination set 25 result per page

i am facing problem, my php show all pages in row and its increasing day by day as i upload data on my sql. I just want 25 page result on page and other for click to next.
<?php
if(isset($page))
{
$result = mysql_query("select Count(*) As Total from store_urls");
$rows = mysql_num_rows($result);
if($rows)
{
$rs = mysql_fetch_assoc($result);
$total = $rs["Total"];
}
$totalPages = ceil($total / $perpage);
if($page <=1 ){
echo "<span id='page_links' style='font-weight: bold;float:left;'>Prev</span>";
}
else
{
$j = $page - 1;
echo "<span style='float:left;'><a style='padding: 8px;' id='page_a_link' href='url_lists.php?page=$j'>< Prev</a></span>";
}
for($i=1; $i <= $totalPages; $i++)
{
if($i<>$page)
{
echo "<span><a style='float:left;padding: 8px;' id='page_a_link' href='url_lists.php?page=$i'>$i</a></span>";
}
else
{
echo "<span id='page_links' style='font-weight: bold;float:left;'>$i</span>";
}
}
if($page == $totalPages )
{
echo "<span id='page_links' style='font-weight: bold;'>Next ></span>";
}
else
{
$j = $page + 1;
echo "<span><a id='page_a_link' style='float:left;padding: 8px;' href='url_lists.php?page=$j'>Next</a></span>";
}
}
?>