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PHP - Impact Of Utf-8 On Existing Code
I would like to support UTF-8 on my website but am unsure - and quite fearful - whether it will break my existing code or not?!
I looked at http://us3.php.net/mbstring(), but worry that I'm going to miss something. Here is some sample code where I think things could easily break... // Trim all Form data. $trimmed = array_map('trim', $_POST); // ************************ // Validate Form Data. * // ************************ // Validate First Name. if (empty($trimmed['firstName'])){ // No First Name. $errors['firstName'] = 'Enter your First Name.'; }else{ // First Name Exists. if (preg_match('#^[A-Z \'.-]{2,30}$#i', $trimmed['firstName'])){ // Valid First Name. $firstName = $trimmed['firstName']; }else{ // Invalid First Name. $errors['firstName'] = 'First Name must be 2-30 characters (A-Z \' . -)'; } }//End of VALIDATE FIRST NAME // Validate Username. if (empty($trimmed['username'])){ // No Username. $errors['username'] = 'Enter your Username.'; }else{ // Username Exists. if (preg_match('~(?x) # Comments Mode ^ # Beginning of String Anchor (?=.{8,30}$) # Ensure Length is 8-30 Characters .* # Match Anything $ # End of String Anchor ~i', $trimmed['username'])){ // Valid Username. // ****************************** // Check Username Availability. * // ****************************** // Build query. $q1 = 'SELECT id FROM member WHERE username=?'; // Prepare statement. $stmt1 = mysqli_prepare($dbc, $q1); // Bind variable to query. mysqli_stmt_bind_param($stmt1, 's', $trimmed['username']); // Execute query. mysqli_stmt_execute($stmt1); // Store results. mysqli_stmt_store_result($stmt1); // Check # of Records Returned. if (mysqli_stmt_num_rows($stmt1)>0){ // Duplicate Username. $errors['username'] = 'This Username is taken. Try again.'; }else{ // Unique Username. $username = $trimmed['username']; } }else{ // Invalid Username. $errors['username'] = 'Username must be 8-30 characters.'; } }//End of VALIDATE USERNAME Three possible areas where I could run into trouble are with... 1.) array_map 2.) preg_match 3.) Prepared Statements For #2, I see there is mb_ereg_match but I am not sure if I just replace my current Regex function with that one, or if there is more involved. I'm not sure if any problems would arise with #1 or #3 or elsewhere, and would really appreciate a second set of eyes on this code!! requinix said switching is a good idea, but I'm pretty freaked out that I'm going to break things and create a big security hole?! Any help would be appreciated!! Thanks, Debbie Similar TutorialsWhen I asked about adding a watermark to a video, this was suggested: "when scaling it, I'd do h/5:w/5 (of the source video), then position would be w/20 (5% from the left) and h-h/3 (75% of the way down) When I asked about adding a watermark to a video, this was suggested: "when scaling it, I'd do h/5:w/5 (of the source video), then position would be w/20 (5% from the left) and h-h/3 (75% of the way down)" I'd like to try that, but I don't know how to integrate that into my existing working code: $ffmpegCommand =''.$ffmpeg_b.' -y -i '.$video_file_full_path.' -i '.$watermark_image_full_path.' -filter_complex "scale=426:-2, overlay=10:10, " -vcodec libx264 -preset '.$pt->config->convert_speed.' -crf 26 '.$video_output_full_path_240.' 2>&1'; I've looked at the ffmpeg documentation, but need additional assistance. any help is appreciated
I spent some time "Googling" today but all I found was how to create PDFs on the fly. What I wonder is if it is possible to print text on an existing PDF. And if so, could I get some pointer where to obtain this knowledge? Simply put. I have a PDF form that is not yet filled out. I would like to be able to look up an address and other information in a database, and use that information to print on the existing PDF file. Any help is much appreciated. Can anyone help me please, I am trying to place a PHP calendar into an existing DIV tag that used to hold a flash slideshow application, but we want to replace that with a calendar. Here is my code: Code: [Select] echo '<div class="grid_9"> <div class="box"> <h2>'.$titleone.'</h2> <div class="block">'; if (!defined('BLOCK_FILE')) { Header('Location: ../index.php'); die(); } $modName = 'GCalendar'; $blockConfig = array('maxTitle' => 21, 'eventPrefix' => '• ', 'maxEvents' => 10, 'lookahead' => 2, 'twoColumn' => false, 'excludeCats' => array(), 'force_center' => false, ); require_once 'modules/' . $modName . '/language.php'; gcalGetLang($modName); require_once 'modules/' . $modName . '/gcal.inc.php'; require_once 'modules/' . $modName . '/common.inc.php'; require_once 'modules/' . $modName . '/getMonthlyEvents.php'; require_once 'modules/' . $modName . '/gcalBlock.php'; $config = getConfig(); list($year, $month, $today) = explode(',', date('Y,n,j')); $block = new GCalBlock($year, $month, $today, $config, $blockConfig); $content = $block->calendar(); $content .= '<br />'; $content .= $block->upcomingEvents(); echo '</div> </div> </div>'; When I try this above, I just get an 'Too many page loads' error, so I'm not sure what I've done wrong. Any help appreciated. Regards, Tree Is there a way to instantiate a PDO object using an already existing database connection? Or does PDO detect an already opened connection and use it? The existing connection is a persistant connection. Hi all, I have PDF file online i want to edit dynamic footer and page no. at the end of page. Can anyone help me ? thanks in Advance. Manoj <?php if(!isset($_SESSION)) { session_start(); } // UNCOMMENT NEXT LINE TO PRINT THE $_SESSION ARRAY TO THE SCREEN . . . // echo '<pre>'; print_r($_SESSION); echo '</PRE>'; if(empty($_SESSION['userID']) || $_SESSION['authorized'] != true ) { header("Location: login.php"); exit; } ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html lang="EN" dir="ltr" xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="content-type" content="text/xml; charset=utf-8" /> <meta http-equiv="refresh" content="5;url=editprofile.php"> <title>Saving Profile</title> </head> <body> <?php require_once ("dbconn.php"); ?> <?php $userID = $_SESSION['userID']; $insert_query = 'insert into users WHERE userID='$userID'( aim, msn, yim, psnID, xblGamertag, otherContact ) values ( "' . $_POST['aim'] . '", "' . $_POST['msn'] . '", "' . $_POST['yim'] . '", "' . $_POST['psnID'] . '", "' . $_POST['xblGamertag'] . '", "' . $_POST['otherContact'] . '" )'; mysql_query($insert_query); ?> Your profile has been saved! You will now be redirected from where you came from. <br /><a href="editprofile.php" title="Click here if you don't want to wait">Click here if you don't want to wait.</a> </body> </html> It creates a new record but I want it to update an existing one. It's an editprofile script. index.php <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" > <head> <meta http-equiv="Content-type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-language" content="en" /> <link type="text/css" rel="stylesheet" href="css/reset.css" /> <link type="text/css" rel="stylesheet" href="css/960.css" /> <link type="text/css" rel="stylesheet" href="css/custom.css" /> <title>BAY AREA REMOTE CONTROL SOCIETY</title> </head> <body> <div id="wrapper" class="container_12"> <div id="header" class="grid_12"> <div id="left-header" class="grid_5 alpha"></div> <div id="newsflash" class="grid_7 omega"><?php include('content/newsflash.php'); ?></div> </div> <div id="leftmenu" class="grid_3"><?php include('content/menu.php'); ?></div> <div id="maincontent" class="grid_9"><?php include('content/maincontent.php'); ?></div> <div id ="footer" class="grid_12"><?php include('content/footer.php'); ?></div> </div><!-- end wrapper --> </body> </html> menu.php <?php ?> <div class="content"> <ul id="menu"> <li><a href="index.php?page=testpage"><span>Home</span></a></li> <li><a href="index.php?page=about"><span>About us</span></a></li> <li><a href="index.php?page=schedule"><span>Schedule</span></a></li> <li><a href="index.php?page=media"><span>Media</span></a></li> <li><a href="index.php?page=products"><span>Products</span></a></li> <li><a href="index.php?page=misc"><span>Miscellaneous</span></a></li> </ul> </div> When I click HOME on the Menu program it works fine but it does not clear the content of maincontent.php. How do I do that? Hey, I have just started using cookies and have got the basic idea of creating and accessing the simple cookies but now I am wanting to be able to check if a cookie already exists on the users computer before overwriting the current one. Code: [Select] <?php if(!isset($_COOKIE['testCookie'])){ setcookie("TestCookie", "username", time() + (24 * 60) ) } ?> <html>....</html> At the moment my page just doesn't get past this piece of code any ideas? Cheers Okay so I have a time in the format yyyy-mm-dd that is pulled from a MySQL array row and I need to add one month to it then echo that out. I assume it has something to do with the strtotime() and date() functions but I have tried every combination and cannot figure it out. Can I get some assistance please and thank you? Very very very new to php. Here is what I have lol; Code: [Select] $row=mysql_fetch_array($result); $ddaterow=$row['donation_date']; Like I said the date will always be in the format yyyy-mm-dd Hi guys, using the code below within an admin panel to create a drop down allowing the user to select the profiles they wish to assign to the record they're creating, problem we have is that once a record is created, if they need to edit it for what ever reason the selected profile option isn't sticking. I've played around with lots of variants of if existing_record to try and get it add selected="selected" into the code but failed at every attempt, any advice gratefully received. Code: [Select] <?php // List only breeder profiles in the database echo '<select name="profile" class="textinput noborder">'; echo '<option value="any">Any</option>'; $qryGetDistinctProfile = "SELECT * FROM profiles ORDER BY title ASC"; $resGetDistinctProfile = mysql_query($qryGetDistinctProfile,$connection) or die(mysql_error()); if(mysql_num_rows($resGetDistinctProfile) > 0){ $id = mysql_result($resProfile, 0, "id"); while ($row = mysql_fetch_assoc($resGetDistinctProfile)){ echo '<option value="'.$row['id'].'" >'.$row['title'].'</option>'; } } echo '</select>'; ?>
Hello! I found this code from github. https://github.com/gburtini/Learning-Library-for-PHP and I want to know if its possible to add variables to it and what changes needed to be done to the whole script. $xs and $ys I want replace them and add two more. The whole code is he
<?php
require_once 'function.php';
function ll_nn_predict($xs, $ys, $row, $k) {
$distances = ll_nearestNeighbors($xs, $row);
$distances = array_slice($distances, 0, $k);
$predictions = array();
foreach($distances as $neighbor=>$distance) {
$predictions[$ys[$neighbor]]++;
}
asort($predictions);
return $predictions;
}
function ll_nearestNeighbors($xs, $row) {
$testPoint = $xs[$row];
$distances = _ll_distances_to_point($xs, $testPoint);
return $distances;
}
function _ll_distances_to_point($xs, $x) {
$distances = array();
foreach($xs as $index=>$xi) {
$distances[$index] = ll_euclidean_distance($xi, $x);
}
asort($distances);
array_shift($distances);
return $distances;
}
and the function.php that is required is this:
<?php
function ll_transpose($rows) {
$columns = array();
for($i=0;$i<count($rows);$i++) {
for($k = 0; $k<count($rows[$i]); $k++) {
$columns[$k][$i] = $rows[$i][$k];
}
}
return $columns;
}
function ll_mean($array) {
return array_sum($array)/($array);
}
function ll_variance($array) {
$mean = ll_mean($array);
$sum_difference = 0;
$n = count($array);
for($i=0; $i<$n; $i++) {
$sum_difference += pow(($array[$i] - $mean),2);
}
$variance = $sum_difference / $n;
return $variance;
}
function ll_euclidean_distance($a, $b) {
if(count($a) != count($b))
return false;
$distance = 0;
for($i=0;$i<count($a);$i++) {
$distance += pow($a[$i] - $b[$i], 2);
}
return sqrt($distance);
}
I just want to know where is the variables in those 2 scripts and add more as I'm not well versed in using PHP. Thank you! Hello,
First time asking technical question in a forum so I beg pardon for errors.
I have a third party blog module installed on opencart. The original coder helped me to fix some bugs, but he is not answering anymore to emails.
I would like to add a simple pagination to the "latest articles" part, because at the moment the website display the exact number declared in "article limit" and does not show pagination if articles shown are less than the total.
the code from "article_by_type.php" line 85 is the following:
/*recent_article*/
if ($setting['article_type']=='recent_article') {
$data = array(
'sort' => 'p.date_added',
'order' => 'DESC',
'start' => 0,
'limit' => $article_limit
);
$articles = $this->model_news_article->getArticles($data);
}
another file "article_list.php" at line 88 and 214 already have pagination:
$this->data['article_ajax_load'] = $this->getArticle($article_category_id,$page,$limit,$description_limit);can anyone help add pagination to "article_by_type.php" or adapt the existing pagination code to it ? Attached Files article_by_type.php 6.23KB 0 downloads article_list.php 10.2KB 0 downloads Hi I'm currently experiencing a problem with my query. I've used the `INSERT IGNORE` option in my query and it works pretty well not to add duplicates, but the problem is that if my unique field match it doesn't update any other info in the row, is there maybe another option to update a row if an existing field exists but insert new row if it doesn't exists?
my current query is as follow
$query = mysqli_query($con,"INSERT IGNORE INTO mxit (ip,time,user_agent,contact,userid,id,login,nick,location,profile)
VALUES ('$ip','$post_time','$mxitua','$mxitcont','$mxituid','$mxitid','$mxitlogin','$mxitnick','$mxitloc','$mxitprof')") or die(mysqli_error($con));
Hello All! I was hoping one of you phpFreaks could help me out I have the following code that produces links from a database. Certain sets of results have over 3000 links. I can currently set the amount of links to display per page but that's it. I would like to be able to truncate the links to all the pages using pagination. Any help would be greatly appreciated! Here is the code: <?php echo "Results<br><HR WIDTH=100% SIZE=1><br>"; mysql_connect("mysite.com", "mysite_mysite", "mysitepassword") or die(mysql_error()); mysql_select_db("user_database") or die(mysql_error()); if (isset($_GET['pagenum'])) { $pagenum = $_GET['pagenum']; } else { $pagenum = 1; } $rpg = $pagenum; $data = mysql_query("SELECT * FROM mydb WHERE mfg='golf'") or die(mysql_error()); $rows = mysql_num_rows($data); $page_rows = 80; $last = ceil($rows/$page_rows); if ($pagenum < 1) { $pagenum = 1; } elseif ($pagenum > $last) { $pagenum = $last; } $max = 'limit ' .($pagenum - 1) * $page_rows .',' .$page_rows; $data_p = mysql_query("SELECT * FROM mydb WHERE mfg='golf' $max") or die(mysql_error()); while($info = mysql_fetch_array( $data_p )) { $page=$info['link']; echo "<a href='$page' class='blue1'>". $info['title'] . "</a><br>"; } echo "<p>"; if ($pagenum > $last) {$pagenum=1;} else { echo "<HR WIDTH=100% SIZE=1><br>"; $pagenum = 1; while ($pagenum <= $last) { $next = $pagenum; echo " <a href='{$_SERVER['PHP_SELF']}?pagenum=$next' class='g5'>$pagenum</a> "; $pagenum = $pagenum+1; } Echo "<br><br>Page $rpg of $last <br>"; } ?> Simple insertion of pagination would be GREAT! Thanks guys.... My root directory (in the actual file system) has several subdirectories, one of which is a "main" site, while the others are individual user sites. Every subdirectory has their own .htaccess file, but it's the root .htaccess file that is the topic. I have tried to create rewrite rules myself, but I can't get the rewrite conditions to properly check for the folder existing.
/main/lots-of-files
/homer/lots-of-files
/marge/lots-of-files
/bart/lots-of-files
/lisa/lots-of-files
/maggie/lots-of-files
/.htaccess
So this is the root of my web server. When I go to sites.example.com I see the directory listing above. I want sites.example.com to point to "/main/" instead of "/". Not only that, but I want everything not specifically pointing to any user dubdirectory to rewrite to /main/.
These should not rewrite to /main/, because these directories exists in root*:
/homer/index.php
/marge
/lisa/pictures/profile.gif
* The files may not exist in those positions, as /homer/, /marge/, /bart/, /lisa/ and /maggie/ all has a .htaccess file with their own rewrite rules.
These should rewrite to /main/:
/
/philip
/bender/bending/rodriguez.php
/basically/anything-not-existing-as-a-directory
/some-file.txt
Edited by Berre, 07 January 2015 - 12:17 PM. I need some guidance in regards to adding Login with Facebook.
Is this something which is easily done? Currently, I'm using UserCake:
http://usercake.com/
How much testing and QA is necessary for this type of work?
Hello everybody,
I have been racking my brain trying to decipher something that should be really simple for a seasoned programmer. Newbieprogrammer
<html>
function display($randomNr) Hello Everyone, I've successfully created a form script to check to make sure all my fields are filled out. However, I wanted to create an if statement to check and see if the email address is valid and it contains both and "@", "." symbols. If not then echo '' This is not a Valid email address " if its not correct. Could someone tell me the proper way to write this and incorporate this into my existing script below. Thank you all Again for your Help thanks mrjap1 Code: [Select] // Confirm All feild were filled out when submit button was pressed if($name && $email && $username && $password && $confirm_password) { // Confirm that the NAME that you used is NOT greater than 30 characters if(strlen($name)>24) { echo "<h2><center>YOUR NAME IS TOO LONG!!!!</center></h2><br>"; } // Confirm that the EMAIL that you used is NOT greater than 25 characters if(strlen($email)>25) { echo "<h2><center>YOUR EMAIL IS TOO LONG!!!!</center></h2><br>"; } // Confirm that the USERNAME that you used is NOT greater than 10 characters if(strlen($username)>10) { echo "<h2><center>YOUR USERNAME IS TOO LONG!!!!</center></h2><br>"; } else { // Confirm that the PASSWORD that you used MATCH & Between 6 and 15 characters if(strlen($password)>10 || strlen($password)<6) { echo "<h2><center>YOUR PASSWORD MUST BE BETWEEN 6 and 15 CHARACTERS!!!!</center></h2><br>"; } if($password == $confirm_password) { I have a table with lots of records. My table has the following field, with records containing either NULL or '1' that I need to modify. |
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