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PHP - Drawn Lines Starting At 0,0 For Unknown Reasons
Im trying to make a script that draws the track for a game that i in development, Im stuck on something though.
For some reason my script is drawing lines from 0,0 to the x,y of the start position to the x,y of the end position. I have no idea why. Here is the script <?php header ("Content-type: image/png"); $im = ImageCreate (700, 400); $background = ImageColorAllocate ($im, 255, 255, 255); $line = ImageColorAllocate ($im, 0, 0, 0); $trackcode = file_get_contents('test.txt'); $type = split("#", $trackcode); $line = split(",", $type[0]); $sline = split(",", $type[1]); for($i=0; $i<count($line); $i++) { $section = split(" ", $line[$i]); for($j=0; $j<count($section); $j+=2) { $startx = base_convert($section[$j],32,10); $starty = base_convert($section[$j+1],32,10); $endx = base_convert($section[$j+2],32,10); $endy = base_convert($section[$j+3],32,10); //echo "startx: $startx | starty: $starty | endx: $endx | endy: $endy <br>"; imageline ($im,$startx,$starty,$endx,$endy,$line); } } ImagePng ($im); ImageDestroy ($im); ?> You can echo the data if you want to see the raw coordinates. You will need to make a file called test.txt and put this in it for it to work Code: [Select] 42 1i 5u a,8e a 8e -a 8e -u 8e -1i 92 -18 92 0 9m a aa 0 au -a au a,8e -1i 9m -26 au -1i aa -18 9m -1i 92 -18,6i a 84 a,b8 -a b8 a cg u d4 k do u do a do -a do -u cg -1i bs -18,do -u d4 -k bs -18,b8 -a bs -k bs 0 cg a d4 0 d4 -k,e2 k e2 -1i em -18,e2 -u em -k em u,fa -u fu -k gi -u fa -1i em -18,fu -k fu k fu u,gi k gi -u,fa -u em -k,6i a 5u a,gs -u gs 0 gs a i4 u jc a jc -u,gs -18 gs -u,gs -18 hg -1i hg 0 gs a,hg 0 i4 a io 0 jc a,io 0 io -1i jc -18 jc -u,jm a ku u li k m6 u m6 a,jm a jm -a ka -k ka 0 ku a li 0 li -k m6 -u m6 a,li -k ka -18 ku -1i m6 -u,mg a no u p0 a p0 -a oc -k no -u,oc -k p0 -u no -1i no -18 no -a,mg a n4 0 no a oc 0 no -a,qi a qi k r6 u r6 0 t2 u t2 a se 0 t2 -a,qi a qi -a,qi -1i qi 0,qi -1i rq -26 t2 -1i t2 -u t2 -a,r6 -18 rq -1i se -18 t2 -1i,se -18 se -k rq -a r6 -k r6 -18,qi -1i r6 -18,tc k u0 u,tc k tc 0 tc -18 u0 -1i u0 u,ua a vi u 10q a 10q -k 10q -1s 106 -26 106 -1i,ua a ua -a ua -u uu -k uu 0 vi a 106 0 106 -k 10q -u,ua -u vi -1i 106 -18 106 -1i,106 -k vi -u uu -k,114 a 12c u 130 k 11o 0 11o -a,114 a 114 -a 114 -u 12c -1i 13k -u 130 -k 130 -a 130 0 13k -a 13k -u,130 -k 12c -u 11o -k 114 -u,11o -k 11o -a,13u k 13u -u 13u -18 14i -1i 14i 0,13u k 14i u 14i 0,17m a 19i 1i 1es 1i 3d2 1i,pa a q8 a,8e a 9m u au a,e2 k em u,gi k fu u,42 1i -1mm 1i,17m a 14s a#9m -1i 9m -a aa 0,9m -a 92 0,bs 0 cg -a cg -u,cg -a d4 0,bs -k cg -u,em -k fa -a fa a fu 0,fa -a fu -k,em 0 fa a,hg 0 i4 -a io 0,hg -k i4 -u i4 -a,i4 -u io -k,ka 0 ku -a li 0,ku -a ku -u,ka -k ku -u,no -1i mg -u mg -a n4 0,mg -u no -a,no -u n4 -k,r6 -18 rq -u rq -a,rq -u se -18,tc -18 tc -1s u0 -1i,uu 0 vi -a vi -u,vi -a 106 0,11o -k 12c -a 12c a,12c -a 130 -k,130 0 12c a,14i -1i 156 -18 156 -k 14i -u# I have no idea why it isnt working properly, any help will be greatly appreciated. Similar TutorialsHey, So what im trying to do is put my database variables into a session array. So this is what im trying to accomplish... $_SESSION['Name_of_Row'] = $value This is the script I wrote: Code: [Select] Function setupSession(){ session_start(); $query = "SELECT * FROM users WHERE u_id ='{$this->u_id}'"; $result = mysql_query($query); $row = mysql_fetch_array($result); foreach($row as $key => $value){ if(!empty($value)){ $_SESSION[$key] = $value; } } } When that runs I get the following warning. Can anyone tell me what this means and how to fix it? Error: Notice: Unknown: Skipping numeric key 0 in Unknown on line 0 Hi, Is there away to enable system() for one of my websites? At the moment i'm receiving the following error message "system() has been disabled for security reasons". Thanks for any help. Hi, I Have a form after successful submission a mail must be send to particular recipient and thank you mail is send to the person who filled the form ,The problem is i am receiving mails in spam whats the reason for going in spam I have kept Capture code also Can please let me know what to do started learning php yesterday at w3schools was looking for a great forum to ask questions as i go along. bumped into phpfreaks. looking forward to mastering the art
I am starting a project that will encompass the following- A forum script that will later be tied into it's own custom content management system. But I have some questions before I get too deep into starting: 1. What is the "most" secure way to code a forum system? 2. Shall I rely on 1 person to code or open it to the public to help too (open source)? 3. Which features of forum scripts do you like and why? 4. How should the plugin system (hooks) be designed? 5. Template system - what is the easiest way to make theming simple? These are just some of the basics that I am pondering at the moment. I know these may sound noobish but I would rather start this project the right way, instead of having it coded wrong etc.....and having to re-do everything down the road. I can't for the life of me understand how to perform this so I need some professional help here. I have a large array that contains some garbage every Nth and Nth + 1 element that needs to go away. array_filter doesn't work with keys but anyhow, i wouldn't know how to design the function. My keys are numeric, starting from 0. The keys I want to remove are part of this sequence: 8, 9, 18, 19, 28, 29 ... Can someone help me design a generic function to remove these keys? function filter_keys($array, $n, $offset) {} $new_array = filter_keys($array, 10, 8 ); I would maybe have to run this function twice, once for 8 offset and once for 9 offset. So I started learning how to code php with usercake. I then went to use different things like fileNice for directory listing and I went to make a music lister with music player running mainly (EDM) .mp3's.
I have uploaded a copy of my music.php file and I would love some help on how to develop my site further!
https://github.com/3...aster/music.php
This is the part I need help developing:
<?php
function getUploadedFiles($directory){
$folder = opendir($directory);
while ($file = readdir($folder)) {
if($file !== '.' && $file !== '..')
{
$filename = $directory.''.$file;
$file_array[] = array('filename' => $file);
}
}
return $file_array;
}
$music = getUploadedFiles('../Music/EDM');
foreach($music as $value)
{
echo '<div class="well well-sm">';
echo '<li class="list-group-item list-group-item-success"><div class="alert alert-success" role="alert"><a href="../Music/EDM/'.$value['filename'].'"title="Play .$value" class="sm2_button"></a> '.$value['filename'].'</div></li>';
echo '<p><a href="../Music/EDM/'.$value['filename'].'"><button type="button" class="btn btn-sm btn-primary"><span class="glyphicon glyphicon-headphones"> </span> Listen</button></a> ';
echo '<a href="../Music/EDM/'.$value['filename'].'" download><button type="button" class="btn btn-sm btn-success"><span class="glyphicon glyphicon-cloud-download"></span> Download</button></p></br></a></p>';
echo '<p><a class="btn btn-default" href="#" role="button">View details »</a></p>';
echo '</div>';
}
?>
I would love to figure out how to use "echo '<p><a class="btn btn-default" href="#" role="button">View details »</a></p>';" to show time of when song was added, so Time last modified ?
Hopefully I can learn how to set individual counters instead of them being the same for all the songs :/
Here is a link to the site with everything running: http://thebatcave.x10.mx/dev/music.php
Tell me what you think ?
Edited by 321System123, 10 August 2014 - 08:45 PM. But I need help in an issue I have been having for awhile now. Some reason when I try to call for online status it does not work sometimes i can get it to show the default code 1 which means online. But I am trying to get it to say Online and Offline and so on. I do not get what I am doing wrong my website using mysql so not sure if its having trouble reading the database or what. here is the code...
<?php
class steam {
public $api = STEAM_API;
public $returnUrl = URL;
public $user = array();
function __construct() {
$this->setUserInfo();
}
function isLoggedin() {
if(isset($_SESSION['steam'])) {
return true;
}
return false;
}
function showLogoutButton() {
echo "<br /><a href=\"logout.php\">Logout</a>"; //logout button
}
function steamlogin()
{
require_once(INCLUDES.'/openid.php');
try {
// Change 'localhost' to your domain name.
$openid = new LightOpenID($this->returnUrl);
//dump($openid);
if(!$openid->mode) {
if(isset($_GET['login'])) {
$openid->identity = 'http://steamcommunity.com/openid';
header('Location: ' . $openid->authUrl());
}
echo "<a href=\"?login\"><img src=\"http://steamcommunity-a.akamaihd.net/public/images/signinthroughsteam/sits_small.png\"></a>";
} elseif($openid->mode == 'cancel') {
echo 'User has canceled authentication!';
} else {
if($openid->validate()) {
$id = $openid->identity;
$ptn = "/^http:\/\/steamcommunity\.com\/openid\/id\/(7[0-9]{15,25}+)$/";
preg_match($ptn, $id, $matches);
$_SESSION['loginid'] = $matches[1];
//die('Here');
header('Location: index.php');
exit;
} else {
echo "User is not logged in.\n";
}
//die('here we are');
}
} catch(ErrorException $e) {
echo $e->getMessage();
}
}
function doLogout() {
if(isset($_POST['steamid'])) {
unset($_POST['steamid']);
}
header('Location: index.php');
exit;
}
function setUserInfo() {
global $DB;
if($this->isLoggedin()) {
// Grab the info from the session
$userData = $DB->getUserById($_SESSION['steam']);
if(isset($userData['steamid'])) {
$this->user = $userData;
} else {
unset($_SESSION['steam']);
die('Could not get user');
}
} elseif(isset($_SESSION['loginid'])) {
$url = 'http://api.steampowered.com/ISteamUser/GetPlayerSummaries/v0002/?key='.$this->api.'&steamids='.$_SESSION['loginid'];
$ch = curl_init();
curl_setopt( $ch, CURLOPT_URL, $url);
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true);
$content = curl_exec($ch);
curl_close($ch);
$content = json_decode($content, true);
$_SESSION['steam'] = $_SESSION['loginid'];
// Set the database values
$values = array(
'steamid' => $content['response']['players'][0]['steamid'],
'communityvisibilitystate' => $content['response']['players'][0]['communityvisibilitystate'],
'profilestate' => $content['response']['players'][0]['profilestate'],
'personaname' => $content['response']['players'][0]['personaname'],
'lastlogoff' => isset($content['response']['players'][0]['lastlogoff']) ? $content['response']['players'][0]['lastlogoff'] : '',
'profileurl' => $content['response']['players'][0]['profileurl'],
'avatar' => $content['response']['players'][0]['avatar'],
'avatarmedium' => $content['response']['players'][0]['avatarmedium'],
'avatarfull' => $content['response']['players'][0]['avatarfull'],
'personastate' => $content['response']['players'][0]['personastate'],
'timecreated' => $content['response']['players'][0]['timecreated'],
'onlineoffline' => $this->user['personastate'] == 1 ? 'Online' : 'Offline',
'status' => $this->getOnlineStatus()
);
if($values['lastlogoff'] == '') {
$values['lastlogoff'] = 'NA';
} else {
$values['lastlogoff'] = date("m/d/Y", $values['lastlogoff']);
}
// Are updating the user info or adding them?
$userExists = $DB->getUserById($_SESSION['steam']);
if(isset($userExists['steamid'])) {
// We have this user, lets update their info
$DB->update('users', $values, array('steamid' => $_SESSION['steam']));
} else {
// New user, lets insert them
$id = $DB->insert('users', $values);
}
unset($_SESSION['loginid']);
$this->setUserInfo();
}
}
function getOnlineStatus($values) {
switch($this->user['onlineoffline']) {
case '0':
default:
$state = 'Offline';
break;
case '1':
$state = 'Online';
break;
case '2':
$state = 'Busy';
break;
case '3':
$state = 'Away';
break;
case '4':
$state = 'Snooze';
break;
case '5':
$state = 'Looking to trade';
break;
case '6':
$state = 'Looking to play';
break;
}
return $state;
}
?>
This is basically my entire code that calls the steam api. Here is the echo function I use to try and call it on a profile.php page...
echo "<br /><strong>Online:</strong> " . $steam->user['onlineoffline'] . " ";So I would really appreciate it if someone can help me. I been trying to figure out this for the past week and its starting to drive me nuts and loose motivation on my project. Everything else works great minus this one issue. I have pretty much asked everywhere I can think of and no help. I use a function to call my database hint the global $DB; in my functions just to give you anymore information I can. $steam variable I believe is coming from my class at the very top of my code that is were $steam comes from. Thanks Edited by soslidesigns, 12 August 2014 - 01:50 PM. Hello! I have a strange error on my PHP script and i dont how to fix it. If someone can help me, please help me then! Here is my error: Code: [Select] logout(); } else { $iq = mysql_query("SELECT * FROM users WHERE username='{$signin_username}' AND password='{$signin_password}' AND suspended='0' LIMIT 1;"); $ir = mysql_fetch_array($iq); $_SESSION['me'] = $ir; } } } } else { die("The configuration did not recieve appropriate variables to accept your request."); } if ($set['next_clearup'] < time ()) { $next_clearup = time () + 60 * 60 * 24; mysql_query ('' . 'UPDATE settings SET set_value=\'' . $next_clearup . '\' WHERE set_name=\'next_clearup\' LIMIT 1;'); mysql_query ('UPDATE users SET ads_clicked=\'\' WHERE ads_clicked!=\'\''); } } ?> Warning: include(THDIRindex.php) [function.include]: failed to open stream: No such file or directory in C:\xampp\htdocs\Upload\index.php on line 16 Warning: include() [function.include]: Failed opening 'THDIRindex.php' for inclusion (include_path='.;\xampp\php\PEAR') in C:\xampp\htdocs\Upload\index.php on line 16 And here is the PHP file the error is in: Code: [Select] <?php session_start(); include_once('lib/lib.php'); include_once('lib/configuration.php'); $ddir = THDIR.$do->get_file_url(); include($ddir); if(file_exists(HEADER)) { include_once(HEADER); } if($contents) { print $contents; } if(file_exists(FOOTER)) { include_once(FOOTER); } ?> Help ASAP if you can! Hey im kind of new to PHP me and my mate was working on a script and we can not seem to get this working: Its connected through mysql. And it shows Quote Notice: Undefined index: username in C:\xampp\htdocs\stick_arena.php on line 21 Notice: Undefined index: userpass in C:\xampp\htdocs\stick_arena.php on line 22 Notice: Undefined index: action in C:\xampp\htdocs\stick_arena.php on line 23 Notice: Undefined index: usercol in C:\xampp\htdocs\stick_arena.php on line 24 Notice: Undefined index: stats in C:\xampp\htdocs\stick_arena.php on line 25 Here are the lines Quote // declare variables $username = sanitize($_POST['username']); $password = sanitize(md5($_POST['userpass'])); $action = sanitize($_POST['action']); $usercol = sanitize($_POST['usercol']); $stats = sanitize($_POST['stats']); Here is the full script for that page: Click here please help as soon as possible. I Am getting along with php better than I was previously. But this 68 year old brain still refuses to learn very fast! Here is the error I'm receiving when I'm trying to open the db: Parse error: syntax error, unexpected T_VARIABLE in /home/taft65/public_html/memProtest.php on line 197 <?php error_reporting(E_ERROR | E_PARSE | E_CORE_ERROR); $host = "localhost"; $dbname="database;" Failing ------>$username = "user"; $password="drDedf#hj"; I understand you do not need to declare varibles in PHP, Correct? I checked the db to ensure that I'm calling the correct value. NuSpherePhpEd to validate the code. I also check it with DSV PHP Editor. Both come up with the same error. I'm also using MyPhpAdmin to create the database and tables. I know also to place this calling info in another folder and include it by calling it with a php include statement. I just have it within the code to quickly test it. Thank you for any assistance. Bob... im using 000webhost as a test site and when i run this code it redirects me to there err page but with no error message. the sql query works fine in phpmyadmin and i added the rest of the code to try the php side. i "think" the problem is the echo $rows"value's" as im unsure of what the $vars should be <?php include("config.php"); // Connect to server and select database. mysql_connect("$host", "$username", "$password")or die("cannot connect"); mysql_select_db("$db_name")or die("cannot select DB"); $sql = "SELECT make, COUNT(*) AS total, SUM(IF(comments = \'pass\', 1, 0)) AS withComments FROM dsgi_serval GROUP BY make ORDER BY COUNT(*) DESC"; $result=mysql_query($sql); echo "$sql"; echo "$result"; ?> <table><tr> <td colspan="4"><strong>List data from mysql </strong> </td> </tr> <tr> <td align="center"><strong>make</strong></td> <td align="center"><strong>Total</strong></td> <td align="center"><strong>Validated</strong></td> </tr> <?php while($rows=mysql_fetch_array($result)){ ?> <tr> <td><?php echo $rows['make']; ?></td> <td><?php echo $rows['total']; ?></td> <td><?php echo $rows['withcomments']; ?></td> </tr> <?php } ?> </table> <?php mysql_close(); ?> Hey, I've got a query in which a variable is interpreted as a column and I don't why this is caused. $upgrade_time_sql = "SELECT * FROM todo_upgrades WHERE profile_id = ".$profile_id." AND level = ".$profile_data['level2_'.$show.'']." AND type = ".$show.""; $upgrade_time_res = mysql_query($upgrade_time_sql) or die (mysql_error()); $show is filled with the content "storage" The mysql_error is "Unknown column 'storage' in 'where clause'" Thanks for helping. good day dear PHPFreaks - hello to everybody. i want to create a link parser. i have choosen to do it with Curl. I have some lines together now. Love to hear your review... Since i am new to programming i love to get some hints from experienced devs. Here some details: well since we have several hundred of resultpages derived from this one: http://www.educa.ch/dyn/79362.asp?action=search Note: i want to itterate over the resultpages - with a loop. http://www.educa.ch/dyn/79376.asp?id=1568 http://www.educa.ch/dyn/79376.asp?id=2149 i take this loop: for($i=1;$i<=$match[1];$i++) { $url = "http://www.example.com/page?page={$i}"; // access new sub-page, extract necessary data } what do you think? What about the Loop over the target-Urls? BTW: you see - there will be some pages empty. Note - the empty pages should be thrown away. I do not want to store "empty" stuff. well this is what i want to. And now i need to have a good parser-script. Note: this is a tree-part-job: 1. fetching the sub-pages 2. parsing them 3. storing the data in a mysql-db Well - the problem - some of the above mentioned pages are empty. so i need to find a solution to leave them aside - unless i do not want to populate my mysql-db with too much infos.. Btw- parsing should be a part that can be done with DomDocument - What do you think? I need to combine the first part with tthe second - can you give me some starting points and hints to get this. The fetching-job should be done with CuRL - and to process the data into a DomDocument-Parser-Job. No Problem he But how to do the DOM-Document-Job ... i have installed FireBug into the FireFox... now i have the Xpaths for the sites: http://www.educa.ch/dyn/79376.asp?id=1187 http://www.educa.ch/dyn/79376.asp?id=2939 http://www.educa.ch/dyn/79376.asp?id=1515 http://www.educa.ch/dyn/79376.asp?id=1469 Altes Schulhaus Ossingen :: /html/body/div[2] Guntibachstrasse 10 :: /html/body/div[4] 8475 Ossingen :: /html/body/div[6] sekretariat.psossingen@bluewin.ch :: /html/body/div[9]/a Tel:052 317 15 45 :: /html/body/div[11] Fax:052 317 04 42 :: /html/body/div[12] but how to appyl in the Simple DomDocument - i want to use this he http://simplehtmldom.sourceforge.net/ look forward to a hint that gives me a starting point Hello Community, good evening! i am having troubles with starting PHP on linux - [running OpenSuse-Linux] Could not open input file: - suse-linux:/usr/perl # php -v PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/extensions/readline.so' - libedit.so.0: cannot open shared object file: No such file or directory in Unknown on line 0 PHP 5.3.4-dev (cli) Copyright (c) 1997-2010 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies suse-linux:/usr/perl # well what is wrong here...? I am wondering whether there is a way to do a foreach loop for an array, without starting at index[0]. Say, for example, I wanted to start displaying the contents of a 20 item array starting at index 5, what is the best way to do it? I know of this way, but it seems too crude (ie. there has to be a better way): $count = 0; foreach($array as $item) { if ($count > 5) {echo $item;} $count++; } Any other ideas?? Hey guys just thought I'd introduce myself as it's a polite thing to do.
My name is Nick I am currently a front end developer and love learning new technologies so it looks like PHP is my next step.
I hope to learn and give whatever knowledge I can back
This topic has been moved to JavaScript Help. http://www.phpfreaks.com/forums/index.php?topic=347327.0 This topic's house has been seized by the bank and it now lives in MySQL Help until it can get back on its feet. http://www.phpfreaks.com/forums/index.php?topic=358035.0 Why do I get the following results (specifically the second example)? I thought it would be documented under https://www.php.net/manual/en/language.types.string.php, however, the word "ampersand" doesn't appear. Also, looked at logical operators, but found nothing. Thanks
function test(string $string){
printf('%s %s %s 0'.PHP_EOL, gettype($string), $string, $string==0?'==':'!=');
}
test('123');
test('@123');
test('1@23');
test('123@');
Quote
string 123 != 0
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