i used php implode method to an array inside javascript.Yesterday it was working fine but now am getting SyntaxError: syntax error <br/> in firebug.
I closed the php tag correctly but not sure why is this coming.
function create() {
var sTop = Math.floor(Math.random() * (windowHeight));
<?php
for ($i = 1; $ i <= 28; $i++) {
if(${'h'.$i} != NULL) {
$sel[] = ${'h'.$i};
}
}
$format= implode('","', $sel); ?>
var selectedImg = new Array("<?php echo $format; ?>");
}
I am getting above the
var selectedImg = new Array("<?php echo $format; ?>");
when I viewed the JavaScript in FireBug.Can anyone help?
A fix ..
function create() {
var sTop = Math.floor(Math.random() * (windowHeight));
<?php
$sel = array();
for ($i = 1; $ i <= 28; $i++) {
if(${'h'.$i} != NULL) {
$sel[] = ${'h'.$i};
}
}
$format = !empty($sel) ? implode('","', $sel) : ""; ?>
var selectedImg = new Array("<?php echo $format; ?>");
}
Other method with json encode
function create() {
var sTop = Math.floor(Math.random() * (windowHeight));
<?php
$sel = array();
for ($i = 1; $ i <= 28; $i++) {
if(${'h'.$i} != NULL) {
$sel[] = ${'h'.$i};
}
}
?>
var selectedImg = <?php echo json_encode($sel); ?>;
}
Related
I keep seeing Waiting for Cache and it takes at least 30 minutes to get
the response.
Is there a better way?
Here's the link:
http://tapnapp.co/planning/phpScripts/getFullViewTasks.php?counter=1&sDateHour=1525154400&eDateHour=1527793200
And here is the code:
<?php
if (isset($_GET['counter'])) {
require_once '../functions.php';
$sDateHour = $_GET['sDateHour'];
$eDateHour = $_GET['eDateHour'];
$now = time() - 24*60*60;
$fn = new Func;
$fn->select('id_profile, groupe','profile',''," date_f_contract>='$now' AND groupe>0");
$sel = new Func;
$getHrName = new Func;
while ($row = mysqli_fetch_assoc($fn->select)) {
$pr_id = $row['id_profile'];
$sel->select('*','counter',''," from_interval>='$sDateHour' AND to_interval<='$eDateHour' AND id_profile='$pr_id'");
$nr= mysqli_num_rows($sel->select);
if ($nr > 0) {
//here we have to do the total counter
$totalCounter = 0;
$from_interval = 0;
$to_interval = 0;
$name = "";
$tmp_id_profile = 0;
$tmp_f_int = 0;
$tmp_to_int = 0;
while ($r = mysqli_fetch_assoc($sel->select)) {
$frint = $r['from_interval'];
$toint = $r['to_interval'];
//$counter_ct = $r['counter'];
$totalCounter += $counter_ct;
$getHrName->select('libelle AS lbl, COUNT(libelle) AS totalHr',"horraire",""," date_heure_deb>='$frint' AND date_heure_fin<='$toint' AND id_profile='$pr_id' GROUP BY libelle ORDER BY totalHr DESC LIMIT 1");
$rr = mysqli_fetch_assoc($getHrName->select);
$r['hrname'] = $rr['lbl'];
$name = $rr['lbl'];
$r['counter'] = $rr['totalHr'];
/*
$from_interval=$frint;
$to_interval = $toint;
*/
$row['tasks'][] = $r;
}
/*
$r['counter']=$totalCounter;
$r['from_interval']=$from_interval;
$r['to_interval']=$to_interval;
$r['hrname']=$name;*/
//$row['tasks'][]=$r;
} else {
/*
id_counter: "1",
id_profile: "17",
from_interval: "1519887600",
to_interval: "1519934400",
counter: "18"}
*/
/*
$fake['id_counter']=0;
$fake['id_profile']=$pr_id;
$fake['from_interval']=$sDateHour;
$fake['to_interval']=$eDateHour;
$fake['counter']=0;
$row['tasks'][]=$fake;
*/
}
$res[] = $row;
}
$temp['data'] = $res;
$fn->deconnect();
$sel->deconnect();
echo json_encode($temp, JSON_PRETTY_PRINT);
}
?>
So what is wrong with this if anyone can understand?
Is that because of mysql or because of the php?
class fruits
{
function g($str = 'fruits'){
$i=0;
$new_str = "";
while ($i < strlen($str)-1){
$new_str = $new_str + $str[$i+1];
$i = $i + 1;
}
return $new_str;
}
function f($str = 'fruits') {
if (strlen($str)== 0) {
return "";
}
else if (strlen($str)== 1)
{
return $str;
}
else
{
return $this->f($this->g($str)) + $str[0]; }
}
function h($n=1, $str = 'fruits'){
while ($n != 1){
if ($n % 2 == 0){
$n = $n/2;
}
else
{
$n = 3*$n + 1;
}
$str = $this->f($str);
}
return $str;
}
function pow($x, $y){
if (y==0)
{
return 1;
}
else
{
return $x * $this->pow($x, $y-1);
}
}
}
$obj = new fruits;
print(h(pow());
I only want to ask how to echo a function like this print(h(pow);?
First turn on error reporting with:
<?php
ini_set("display_errors", 1);
error_reporting(E_ALL);
?>
And you will see (Besides the typos):
Fatal error: Call to undefined function h() in ...
That is because you have a class with methods. So you have to take an instance of your class an call the method from it, e.g.
$obj = new fruits;
echo $obj->h($obj->pow(4, 5));
This is basic OOP PHP. Also I would highly recommed you to use more meaningful function and variable names!
I am wondering if there is a rot5 function for PHP equalivant too
function rot5(str) {
var s = [];
for (i = 0; i < str.length; i ++)
{
idx = str.charCodeAt(i);
if ((idx >= 48) && (idx <= 57))
{
if (idx <= 52)
{
s[i] = String.fromCharCode(((idx + 5)));
}
else
{
s[i] = String.fromCharCode(((idx - 5)));
}
}
else
{
s[i] = String.fromCharCode(idx);
}
}
return s.join('');
}
In javascript? If not then how can I do fromCharCode and charCodeAt in PHP?
Here you got generic strrot with default to strrot5
<?php
function strrot($str, $n=5){
$replace = [];
for($i=0;$i<26;$i++){
$replace[chr(65+$i)] = chr(65+(($i+$n)%26));
$replace[chr(97+$i)] = chr(97+(($i+$n)%26));
}
return strtr($str, $replace);
}
You can use 'ord' for 'charCodeAt'.
ord($yourstring[$yourindex])
You can use 'chr' for 'fromCharCode'
chr($yourcharcode)
i have the function get_path_dis() and i want to send the resultant to javascript and alert result. while opening the page the alert doesn't show. can someone tell me where am i mistaken
function get_path_dis($array){
//print_r($array);
$total = count($array);
$current = $array[0]['distance'];
$loop=0;
//get shortest distance
for($loop=1;$loop<$total;$loop++){
$next = $array[($loop)]['distance'];
if ($next<$current){
$current = $next;
//print_r('<pre>');
}
}
//shortest path array;
for($i=0;$i<$total;$i++){
if ($current==$array[$i]['distance'])
{
$xmlConv = $array[$i];
}
}
$x = json_encode($xmlConv);
?>
function get_path_dis($array){
//print_r($array);
$total = count($array);
$current = $array[0]['distance'];
$loop=0;
//get shortest distance
for($loop=1;$loop<$total;$loop++){
$next = $array[($loop)]['distance'];
if ($next<$current){
$current = $next;
//print_r('<pre>');
}
}
//shortest path array;
for($i=0;$i<$total;$i++){
if ($current==$array[$i]['distance'])
{
$xmlConv = $array[$i];
}
}
$x = json_encode($xmlConv);
?>
<script type="Javascript">
<!--
var
$json_val= "<?php echo($x);?>";
alert($json_val);
//-->
</script>
Needs to be encapsulated in php start and end tags.
alert('<?php echo json_val; ?>');
the problem with the class is that if i want to display 30 records at a time and i have 60 total records the pagination divs that shows the page numbers only shows page #1 and not page #2. i have tried to figure out how to fix it but i have given up. any help would greatly be apreciated.
this is how i call attributes to the class.
$paginate = new Pagination;
$paginate->pageName = "index.php"; //sets the page to use
$paginate->perPage = 10; //show num of records per page
$paginate->adjacents = 3; //current page adjacent to
$paginate->sql = "select * from tbl_products"; //the main query
$query = $db->query($paginate->getData());
while($row = mysql_fetch_object($query)) {
print $row->pName."<br/>";
}
$paginate->showPagination(); //shows the pagination div
here is the class.
<?php
include_once("class.db.php");
class Pagination
{
var $param;
var $perPage;
var $adjacents;
var $start;
var $sql;
var $pageName;
function __construct()
{
$this->db = new MysqlDB;
$this->db->connect();
}
function setParam()
{
if(isset($_GET['page']) && is_numeric($_GET['page']) && ($_GET['page'] > 0))
{
$this->param = $_GET['page'];
}
else
{
$this->param = 1;
}
}
function setIndex()
{
$this->setParam();
return $this->start = ($this->param * $this->perPage) - $this->perPage;
}
function showPagination($param1=null,$param2=null,$param3=null)
{
$qRows = $this->db->query($this->sql);
$numRows = $this->db->num_rows($qRows);
$numOfPages = ceil($numRows / $this->perPage);
$param = $this->param;
$pageName = $this->pageName;
$string = "";
//set pagination parameters.
if($param1 != null)
{
if(isset($_GET[$param1]))
{
$param1Value = $_GET[$param1];
$string .= "&".$param1."=".$param1Value;
}
}
if($param2 != null)
{
if(isset($_GET[$param2]))
{
$param2Value = $_GET[$param2];
$string .= "&".$param2."=".$param2Value;
}
}
if($param3 != null)
{
if(isset($_GET[$param3]))
{
$param3Value = $_GET[$param3];
$string .= "&".$param3."=".$param3Value;
}
}
print "<div class='pagination'>";
print "<a href='$this->pageName?page=1$string' class='previous-off'> First </a>";
// ----------------------------------------------------------------------------
// PRINT ALL PAGES TO THE LEFT //
if(($param - $this->adjacents) > 1)
{
print "<span>...</span>";
$lowerLimit = $param - $this->adjacents;
//print all on left side.
for($i = $lowerLimit; $i< $param; $i++)
{
print "<a href='$pageName?page=$param = $i$string'> $i </a>";
}
}
else
{
//print all numbers between current page and first page.
for($i = 1; $i < $param; $i++)
{
print "<a href='$pageName?page=$i$string'> $i </a>";
}
}
// ----------------------------------------------------------------------------
//print current page
if(($param != 0) && ($param != $numOfPages))
{
print "<span class='current'>$param</span>";
}
// ----------------------------------------------------------------------------
//PRINT ALL PAGES TO THE RIGHT
if(($param + $this->adjacents) < $numOfPages)
{
$upperLimit = $param + $this->adjacents;
for($i=($param + 1); $i<=$upperLimit; $i++)
{
print "<a href='$pageName?page=$i$string'> $i </a>";
}
print "<span>...</span>";
}
else
{
//print all page numbers if out of padded range
for($i = ($param + 1); $i<$numOfPages; $i++ )
{
print "<a href='$pageName?page=$i$string'> $i </a>";
}
}
// ----------------------------------------------------------------------------
$lastPage = $numOfPages - 1;
print "<a class='next' href='$pageName?page=$lastPage$string'> Last </li>";
print "</div>";
}
function getData()
{
$query = $this->sql;
$this->start = $this->setIndex();
return "$query LIMIT $this->start, $this->perPage";
}
function errors()
{
$query = $this->sql;
print "$query LIMIT $this->start, $this->perPage"."<br/>";
print "this->start ".$this->start."<br/>";
print "this->param ".$this->param."<br/>";
print "this->perPage ".$this->perPage."<br/>";
print "this->setindex() ".$this->setIndex()."<br/>";
}
}
?>
Personally I tend to stray from SELECT * FROM tbl type queries as if you have a large table, it can be slow. Therefore, I run two queries: one to get the total number of records, and one to get the data set I need based on a paging parameter in the URL, e.g. example.com/news.php?page=2.
From there, I can instantiate my own paging class, which is pretty simple:
<?php
class Paging {
private $total;
private $batch;
private $page;
private $prefix;
public function __construct($total=0, $batch=10, $page=1, $url="") {
$this->total = intval($total);
$this->batch = intval($batch);
$this->page = intval($page);
$this->url = $url;
}
public function total_pages() {
return ceil($this->total/$this->batch);
}
public function render() {
$html = "";
// only display paging if we have more than the batch value
if ($this->total > $this->batch) {
$html.= '<p>Go to page:';
for ($i=1; $i <= $this->total_pages()) {
if ($i==$this->page) {
$html.= ' <span class="current">'.$i.'</span>';
}
else {
$html.= ' '.$i.'';
}
}
$html.= '</p>';
}
return $html;
}
}
Then to use:
<?php
// get total number of records
$sql = "SELECT COUNT(*) AS total FROM tbl";
$res = $db->query($sql);
$row = $res->fetch();
$total = $row['total'];
$batch = 20;
$page = intval($_GET['page']);
// instantiate paging class
require_once('paging.class.php');
$paging = new Paging($total, $batch, $page, "mypage.php?page=%s");
// do normal page stuff here...
// render the pagination links
echo $paging->render();
Feel free to use the above code and modify to your needs