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PHP - How Do I Alter This Code To Display Custom Error Pages?
Hi everyone,
I am a beginner web designer and a novice php user. I am a regular forum user and understand that you should always do a search and try to find the answer yourself but I have done that and didn't get any results (or I didn't understand them!). So I ask for some assistance - either you can tell me the code or link me to the correct answer. I am working on a website that I have built a enquiry form for and it has a php script for it. I have managed to get the form running properly and got the reCaptcha working correctly (with a custom error page) but I do not understand how to add custom error pages for incomplete email addresses, empty email addresses, or for a blank form? I tried using the same tactic I used for the reCaptcha error page but it didn't work - probably because I was guessing and just tried it in a bunch of different places. The error msg that displays now is just a plain white page with the msg - Email address is invalid appearing at the top left. While this is suitably functional it doesn't really look like much so I want to build a custom page for each error that could happen. So the code is below - if anyone can point a beginner in the right direction I would be super happy. :mrgreen: if you need anymore code or other details just tell me and I will post them up. The url of the form page is http://www.sunsolutionshomeimprovement.com/onlinesales.html This is the code I think you will need - I got it from a demo php script that I have modified. As I said I don't have much clue what I'm doing so I just posted it exactly how it looks - if I over did it I apologize... :oops: 68.// Validate email field. 69. 70.if(isset($_REQUEST['email']) && !empty($_REQUEST['email'])) 71.{ 72. 73.if(preg_match("/(%0A|%0D|\n+|\r+|:)/i",$_REQUEST['email'])){$errors[] = "Email address may not contain a new line or 74.a colon";} 75. 76.$_REQUEST['email'] = trim($_REQUEST['email']); 77. 78.if(substr_count($_REQUEST['email'],"@") != 1 || stristr($_REQUEST['email']," ")){$errors[] = "Email address is invalid";}else{$exploded_email = explode("@",$_REQUEST['email']);if(empty($exploded_email[0]) || strlen($exploded_email[0]) > 64 || empty($exploded_email[1])){$errors[] = "Email address is invalid";}else{if(substr_count($exploded_email[1],".") == 0){$errors[] = "Email address is invalid";}else{$exploded_domain = explode(".",$exploded_email[1]);if(in_array("",$exploded_domain)){$errors[] = "Email address is invalid";}else{foreach($exploded_domain as $value){if(strlen($value) > 63 || !preg_match('/^[a-z0-9-]+$/i',$value)){$errors[] = "Email address is invalid"; break;}}}}}} 78. 79.) 80. 81.// Check referrer is from same site. 82. 83.if(!(isset($_SERVER['HTTP_REFERER']) && !empty($_SERVER['HTTP_REFERER']) && stristr($_SERVER['HTTP_REFERER'],$_SERVER['HTTP_HOST']))){$errors[] = "You must enable referrer logging to use the form";} 84. 85.// Check for a blank form. 86. 87.function recursive_array_check_blank($element_value) 88.( 89. 90.global $set; 91. 92.if(!is_array($element_value)){if(!empty($element_value)){$set = 1;}} 93.else 94. 95. 96.foreach($element_value as $value){if($set){break;} recursive_array_check_blank($value);} 97. 98.) 99. 100.) 101. 102.recursive_array_check_blank($_REQUEST); 103. 104.if(!$set){$errors[] = "You cannot send a blank form";} 105. 106.unset($set); 107. 108.// Display any errors and exit if errors exist. 109. 110.if(count($errors)){foreach($errors as $value){print "$value<br>";} exit;} 111. 112.if(!defined("PHP_EOL")){define("PHP_EOL", strtoupper(substr(PHP_OS,0,3) == "WIN") ? "\r\n" : "\n");} 113. 114.// Build message. I don't think there is anymore that is relevant? I just want to reiterate that I know nearly nothing about this stuff so if you could keep your answers simple it would help a lot - cheers! Similar TutorialsHi im a little stuck... What im trying to do is when you request a page that is not there it goes to a custom error page. I have set the redirect via the .htaccess file. Basicly what im trying to do is only have one php file which displays the server response i.e. 404 error or 401 error and so on rather than having several error pages. So in the code Code: [Select] <h1>Oopppsss!!!! <!-- ERROR TO DISPLAY HERE i.e. 404 page not found --></h1> <p>There seems to be a problem... The page you are looking for does not exist or has moved. This is a permanent error. If you think this is a mistake please get in touch either by giving us a ring on 101010 or by filling out the web form on the <a href="contact-me.php">contact me</a> page...</p> Any thaught on how i can do this or is it not possible... Cheers I am writing a database using php mysql. I have a page which works fine but if I add one extra query it just produces a blank page. I remember once that someone said I could put in some code at the start of the page and it would display any errors but can't remember the code!
Could someone let me have the code and does anyone have any suggestions as to why this blanking is happening?
Many thanks
I'm sure it's not much, but I'm not understanding something with custom error handlers: I've created a custom error handler, which I initially set when my page loads : set_error_handler(array ( new ErrorHandler(), 'handleError' ));
It seems to catch all internal PHP errors, such as if I: var_dump($non_existing_var); right after the set_error_handler.... Now, I have an object that throws an exception after: set_error_handler(array ( new ErrorHandler(), 'handleError' )); $locale = new \CorbeauPerdu\i18n\Locale(...); // this should throw an exception ... I thought that with an error handler set, I could 'skip' the try/catch for it, but doing so, PHP spits out in its internal log: PHP Fatal error: Uncaught CorbeauPerdu\i18n\LocaleException: ....
My error handler doesn't catch it at all before, thus my page breaks!! If I want it to go through the error handler, I have to init my Locale with a try/catch and use trigger_error() like so:
set_error_handler(array ( new ErrorHandler(), 'handleError' ));
try {
$locale = new \CorbeauPerdu\i18n\Locale(...); // this should throw an exception
}
catch(Exception $e) {
trigger_error($e->getMessage(), E_USER_ERROR);
}
...
Is this normal ? I thought one of the goals of the error_handler was to catch anything that wasn't dealt with? Thanks for your answers! I have no idea where to start or which board would be the proper place to put this but what I"m attempting to do is integrate this idea with my custom cms I'm making now is that once inside I can take down my site in case I (administrator) wanted to perform some maintenance on my site and have it instead display a custom 404 page. Any ideas on where to start. I tried using my best friend google but he gave me nothing. Maybe a few tutorials of this might help. if I have a list of 5,000 bots and their server header into in my DBs, can someone point me to a web resource that can give me any insight into how to show a custom page if a bot is detected at the render request? I can look up PHP functions myself and possibly use header(), but didn’t know if anything special was involved that I don’t already know about. so, say for instance, as a joke I want to do this:
<?php
$ip = gethostbyaddr($_SERVER['REMOTE_ADDR']);
if (substr($ip, 0, 3) = '10.') {
echo 'sorry, but we do not display content to USA government's automated server sniffing bots.';
}
?>
how much of a pain in the rear would it be to display custom pages for ‘‘x’’ number of automated hits? I realize that this is pointless because most are just from researching orgs the world over, but it IS a relevant question to ask. thanks. Hi, I'm new to PHP so sorry if it is difficult to understand my question. I've just added a new custom field for my website home page (home.php). I've image link inside that custom field and now I want to display that image at Home (Home.php ). Please let me know what code/loop should I add in home.php to get that image display with size of 100*50 px . I hope you understand what I meant to. Thank You. I have a 3-tables This topic has been moved to CSS Help. http://www.phpfreaks.com/forums/index.php?topic=348687.0 Hi, i have created a mysql table for account info which stores basic expenses and income I have also account.php page that shows the all transactions 10 transaction (row) per page. there is no problem with that but I like it to show the transactions(entries) per month base. I mean when i open this page i want it to show this month's entries. and when i click previous button i like to see last month's entries. any help will be appreciated. thanks in advance. regards. Hi I use fake IP to check if my 503 custom error page works but it doesn't?. I have another question should i stop people from hotlinking to my rss feed which is also sitemap? and stop people from hotlinking to my robots.txt?. Thanks
RewriteEngine on Hello everyone, Very new to coding - enjoying it but struggling! I think I'm trying to do something pretty common but I seem to have come up against a complete wall now and after hours/days searching the internet and reading books I'm completely stuck! I'm trying to write some code to search a MySQL database of products, then display the results. For some search results there will be lots of products so I want to display 10 products on the first page then allow visitors to go to the next page to see another 10, and so on - a type of pagination, as they should then be able to click back to see the last page etc. I've got to the point of being able to display the first 10 search results, but I can't figure out at all how to create some kind of page scrolling/pagination system. Please, does anybody have any ideas?? I've attached my code, I hope this is the correct way of doing things here. Many thanks for your time! The PHP search code... Code: [Select] <?php //opens connection to mysql server $dbc = mysql_connect('localhost'); if (!$dbc) { die('Not connected :' . mysql_error()); } echo "Connected to mysql database<br />"; //select database $db_selected = mysql_select_db("NAME_OF_DATABASE", $dbc); if (!$db_selected) { die ("Cannot connect :" . mysql_error()); } echo "Connected to database<br /><hr />"; echo "Here are your results"; $term = $_POST['term']; $category = $_POST['category']; $brand = $_POST['brand_name']; $sql = mysql_query("SELECT * FROM products where product_name like '%$term%' AND category_name like '%$category%' AND brand_name like '%$brand%' LIMIT 0, 10"); { while ($row = mysql_fetch_array($sql)){ echo "<table border='1' width='100%'> "; echo "<tr>"; echo "<td style='vertical-align:top' width='25%'>" . '<img src="', $row['image_url'], '" alt="', $row['product_name'], '" width="100" height="100" />' . "</td>"; echo "<td style='vertical-align:top' width='50%'>" . $row['product_name']; echo "<br />"; echo "<span style='font-size: 10px'>" . $row['description'] . "</span>" . "</td>"; echo "<td style='vertical-align:top' width='25%'>" . $row['price']; echo "<br />"; echo "<br />"; echo "<hr />"; echo "$row['merchant_name'] </td>"; echo "</tr>"; } echo "</table>"; } ?> Hello I have: function MailTemplate($Type) { ob_start(); include 'mailtemplate.php'; $x=ob_get_contents(); ob_end_clean(); return $x; } Session variables are parsed; however calls to functions do not seemed to work. I'm making a call to a function that returns a value, but this value is not output in the final html. I have double checked that function is available in the template. any suggestions ? In a project that I'm working on I can specify routing rules, which is somewhat similar to mod_rewrite but in PHP. It's currently set up to use full regular expressions, but it's kind of overkill. I'm trying to convert it to use routing rules similar to some of the php frameworks I've seen. The code I've written up below is working, and while it's unlikely that I would need anything more complex, I'm wondering if anyone would like to comment, offer suggestions, or offer criticisms. This little piece of code is just a part of a bigger routing class, but this is the code that I'm concerned with. Thanks.
<?php
$cfg['routes'] = [
'cars/(:any)/(:any)/(:num).php' => 'cars/$3/$1/$2',
'default_route' => 'cars/index',
'trucks/parts?year=(:num)' => 'parts/trucks/$1',
'vans/articles(:any)' => 'articles$1'
];
$uris = [
'cars/toyota/tercel/2014.php', # /cars/2014/toyota/tercel
'default_route', # /cars/index
'trucks/parts?year=2014', # /parts/trucks/2014
'vans/articles?p=42342' # /articles?p=42342
];
$i = 0;
foreach( $cfg['routes'] as $k => $v )
{
$k = '|^' . preg_quote( $k ) . '$|uiD';
$k = str_replace(
[
'\(\:any\)',
'\(\:alnum\)',
'\(\:num\)',
'\(\:alpha\)',
'\(\:segment\)'
], [
'(.+)',
'([[:alnum:]]+)',
'([[:digit:]]+)',
'([[:alpha:]]+)',
'([^/]*)'
],
$k
);
echo '<br />' . $uris[$i] . '<br />' . $k . '<br />';
if( @preg_match( $k, $uris[$i] ) )
{
echo preg_replace( $k, $v, $uris[$i] ) . '<br /><br />';
}
$i++;
}
In the code below, I am trying to produce a google-like page where the user can type keywords and pages of search results are displayed. The main difficulty I am encountering is that when the browser changes pages, it forgets everything about current data. Perhaps I should include the display of pages inside the HTML form ? How can I fix this code ? Here is the contents of my searchpage.php file :
<?php
$keywords='';
$display_search_results='';
if(isset($_POST['search_submitted'])) {
$keywords=$_POST['keywords'];
$search_results=array();
$totalNbrOfItems=20;
for($k=1;$k<=$totalNbrOfItems;$k++) {
$search_results[$k]='Your keywords '$keyowrds.' have been found in item number '.$k;
}
$nbrOfItemsParPage = 5;
$nbrOfPages = ceil($totalNbrOfItems / $nbrOfItemsParPage);
// Compute current page
$current_page = (isset($_GET['page']))?intval($_GET['page']):1;
$display_pages=($nbrOfPages<2)?'<p>Page : ':'<p>Pages : ';
for ($i = 1 ; $i <= $nbrOfPages ; $i++)
{
if ($i == $current_page) //No link to the current page
{
$display_pages=$display_pages.$i.' ';
}
else
{
$display_pages=$display_pages.'<a href="searchpage.php?'.
'page='.$i.'">'.
$i . '</a> ';
}
}
$display_pages=$display_pages.'</p>';
$display_items='';
$start=$nbrOfItemsPerPage*($current_page-1);
for($k=1;$k<=$nbrOfItemsParPage;$k++) {
$display_items=$display_items.($search_results[$start+$k]).'<br>';
}
$display_search_results=$display_pages.$display_items;
}
echo '<form method="post" action="searchpage.php">'.
' Type your keywords here : <br><br>'.
'<textarea cols="65" rows="1" '.
'id="keywords_id" name="keywords">'.$keywords.'</textarea>'.
'<input type="submit" name="search_submitted" id="search_submitted_id" value="Search" /> '.
'</fieldset>'.
'</form>';
echo $display_search_results;
?>
I have a problem w/ a widely used password protect php code. I use a business directory program that allows custom input fields. I'm using this code to password protect a business listing page in my directory code. I created custom fields for the username & password so a listing can enter their own user/pass but when I test it it won't work when I'm calling/echoing the fields. When I hardcode it w/ a user/pass it works. Any ideas on how I should recode this?: Quote <?php // Define your username and password $username = "<?php echo $custom_74; ?>"; $password = "<?php echo $custom_16; ?>"; if ($_POST['txtUsername'] != $username || $_POST['txtPassword'] != $password) { ?> <h1>Login</h1> <form name="form" method="post" action="<?php echo $_SERVER['REQUEST_URI']; ?>"> <p><label for="txtUsername">Username:</label> <br /><input type="text" title="Enter your Username" name="txtUsername" /></p> <p><label for="txtpassword">Password:</label> <br /><input type="password" title="Enter your password" name="txtPassword" /></p> <p><input type="submit" name="Submit" value="Login" /></p> </form> <?php } else { ?> I close the code correctly. <?php echo $custom_74; ?> & <?php echo $custom_16; ?> are just incidently my custom field echo codes. I have over 150 custom fields working fine for user/listee options. The password protect code won't accept echos it seems as coded above. Thanks, Gene Sorry for my bad english but i hope you would understand my query. How can i set 404 not found for database driven pages..? I am using header("HTTP/1.0 404 Not Found"); in my 404 error page and ErrorDocument 404 /404.html, whereas 404.html is my error page. i have an URL http://www.example.com/folder/my-test-for-url-95/ which is opening correctly because it has existence on database. but when i am opening http://www.example.com/folder/my-test-for-url-951/ which has existence on database is also opening without any information but i want here a 404 not found page. How can i do so. Thanks I have the following code in html: <html> <head> <script type="text/javascript"> <!-- function delayer(){ window.location = "http://VARIABLEVALUE.mysite.com" } //--> </script> <title>Redirecting ...</title> </head> <body onLoad="setTimeout('delayer()', 1000)"> <script type="text/javascript"> var sc_project=71304545; var sc_invisible=1; var sc_security="9c433fretre"; </script> <script type="text/javascript" src="http://www.statcounter.com/counter/counter.js"></script><noscript> <div class="statcounter"><a title="vBulletin statistics" href="http://statcounter.com/vbulletin/" target="_blank"><img class="statcounter" src="http://c.statcounter.com/71304545/0/9c433fretre/1/" alt="vBulletin statistics" ></a></div></noscript> </body> </html> Is a basic html webpage with a timer redirect script and a stascounter code. I know a bit about html and javascript, but almost nothing about php. My question is: How a can convert this html code into a php file, in order to send a variable value using GET Method and display this variable value inside the javascript code where says VARIABLEVALUE. Thanks in adavance for your help. Hello, Here's the weird thing, some of the pages shows the results, and some pages just won't show results at all, and I'm not getting any errors here is the one that doesn't Code: [Select] <? function display_mptt($user) { global $db; // retrieve the left and right value of the $root node $sql2 = "SELECT * from mptt where id='25'"; $result2 = mysql_query($sql2 ,$db); if(!$row2 = mysql_fetch_array($result2)) echo mysql_error(); echo '<h1>Users List</h1>'; // start with an empty $right stack $right = array(); // now, retrieve all descendants of the $root node $sql = "SELECT * from mptt WHERE 'left' BETWEEN '".$row2['left']."' AND '".$row2['right']."' ORDER BY 'left' ASC"; $result = mysql_query($sql ,$db); // display each row while ($row = mysql_fetch_array($result)or die(mysql_error())) { // only check stack if there is one $count = mysql_num_rows($result); if (count($right)>0) { // check if we should remove a node from the stack while ($right[count($right)-1]<$row['right']) { array_pop($right); } } // display indented node title // add this node to the stack $var3 = '10'; echo "<table width='589' border='1'> <tr> <th>ID</th> <th>Name</th> </tr>"; echo "<tr><td><a href=\"user.php?id=".$row['id']."\">".$row['id']."</a></td>"; echo "<td>" . $row['title'] ." </td>"; echo "</tr>"; echo "</table>"; $right[] = $row['right']; } } display_mptt(1); ?> and here is the page that does Code: [Select] <? function display_mptt($user) { global $db; $id = $_GET['id']; // retrieve the left and right value of the $root node $sql2 = "SELECT * from mptt where id= ".$id.""; $result2 = mysql_query($sql2 ,$db); if(!$row2 = mysql_fetch_array($result2)) echo mysql_error(); echo '<h1>Your Tree</h1>'; // start with an empty $right stack $right = array(); // now, retrieve all descendants of the $root node $sql = "SELECT * from mptt WHERE `left` BETWEEN ".$row2['left']." AND ".$row2['right']." ORDER BY 'left' ASC"; $result = mysql_query($sql ,$db); // display each row while ($row = mysql_fetch_array($result)) { // only check stack if there is one if (count($right)>0) { // check if we should remove a node from the stack while ($right[count($right)-1]<$row['right']) { array_pop($right); } } // display indented node title echo str_repeat(' ',count($right)).$row['title']."<br>"; // add this node to the stack $right[] = $row['right']; } } display_mptt(1); ?> |
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