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PHP - Accessing Variables Lower Down The Page
Is there any way to access a variable that is not assigned until further down the page eg:
echo $myname; $myname = 'batman'; // clearly my real name which is why I am so poor at coding Thanks Similar TutorialsI have a file, test.php. It has a require statement to include line.php. Now on normal load, I can access the variables set in test.php in line.php. However, I also have an automated reload of line.php using AJAX, where I send a request to access the file and it outputs the same information. HOWEVER, in this case, the variables set in test.php can no longer be access :s .. why is that? I haven't set any data to be passed in the request, but I assume this doesn't have to be done. Hi guys, I am trying something fairly simple but I'm not sure if this would be a good practice. Basically I am using a big class called CommonLibrary that holds common functions as methods and common variables as static variables. But I have some variables here and there like $allAlphabet = range ('a' , 'z'), that cannot be declared as a property because it gives me a parse error. I don't want to call an object for this class because instancing it is of no use. Values will never change with regards to instances. So the next best thing that I tried was declaring all static variables first, and then changing thei property values inside the class __construct with self::$variable = 'somevalue', and then using this code below to assign values to the empty static variables. $dummyObject = new CommonLibrary; unset($dummyObject); echo CommonLibrary::$staticVariable; // This property is NULL before the constructer is triggered. Anyone recommend any better ways of doing this? Thanks in advance! I am a part of an institue which has internal web pages. It also provides me with my web space with php servers. Now I know those internal web pages are available to the server. I want a code that can fetch those web pages and display it in my web space. And whatever forms i fill or links i click it should do those on internal page and again return the new web page. How do I access an object on different pages? I created object "A" on pageone.php and I need to access it on pagetwo.php. How do I do that? TomTees Hello, I want to prevent this page from being directly accessed by all via just putting its address in the address bar: http://www.mysite.com/page1/page2/signup.php I want to allow to be accessed this page only via clicking on a link in a particular page like: http://www.mysite.com/activate/index.php Please help me. I have a registration page that mails a link to the users email. The link in the email takes the user to the activation page which sends out a welcome email and updates the database as activated if the user is not already activated. For some reason, this page is being accessed by an Amazon ip address with multiple browsers in the user_agent. Whatever this is is automatically activating my users and sending them a welcome email without them even accessing the page. The only suspect I can think of is I have a javascript snippit for google ads and also facebook on some of my pages. I don't know if they could somehow be accessing the page or not. It must be following the activation link in the mail() script I have on the registration page. I'm mailing myself the following when the activation page is accessed. I get an amazon ip, multiple browsers, and no referer. $browser = $_SERVER['HTTP_USER_AGENT']; $ip = $_SERVER['REMOTE_ADDR']; $referer = $_SERVER['HTTP_REFERER'];
How would I pass variables from one page to another without using forms or $_GET features. Let say I have page (1.php) where If define $secret_phrase = "open sesame";. On that page (1.php) I have multiple html links to multiple pages (2.php, 3.php, ...) if you click on the link to 2.php page I would like to pass the $secret_phrase as well without having it encoded into a link or using forms. Is there a way to do it? Thanks i want to make a simple forced lower case form but i got stuck on it
to begin with i want to everything user's write and submit convert to lowercase
am i using the right code? i'm not sure about using preg_match in this situation but i dont know what else to do don't be harsh with me i'm noob
<?php
if(isset($_GET['user'])&&!empty($_GET['user']))
{
$user = $_GET['user'];
if (preg_match('$englishUpperAlphabet'//English alphabet Upper case array//',$user)){
$user = mb_strtolower($user);
echo $user;
}
else{
echo 'none';
}}
?>
<form action="t.php" action="GET">
name:
<input type="text" name="user" > <br>
<input type="submit" value="submit" >
</form>
Hello, I've got what should be a simple solution here. I've tried many things but it just won't work for me. This is what I have. I've got a wysiwyg editor setup to write to a file called news.php. The file that has the editor is edit/index.php. It's just a simple textarea. The textarea is supposed to include news.php. For some reason, it won't let me include that file that is in a lower directory. The file that writes to news.php is called edit/write.php. edit/write.php doesn't write to news.php instead it writes to edit/news.php. The only reason I want to include the lower directory is so that I can put a .htaccess password protection on the edit directory. I'll include some code below. Code: (edit/index.php) [Select] <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" dir="ltr"> <head> <title>Editing News</title> <meta http-equiv="content-type" content="text/html; charset=utf-8"/> <script type="text/javascript" src="nicEdit.js"></script> <script type="text/javascript"> bkLib.onDomLoaded(function() { nicEditors.allTextAreas() }); </script> <form method="post" action="write.php"> <p> <textarea name="content" style="width:100%;height:1000px;"><?php include '../news.php';?></textarea> <input type="submit" value="Save" /> </p> </form> </body> </html> Code: (edit/write.php) [Select] <?php $File = "../news.php"; $Handle = fopen($File, 'w'); $Data = $_POST['content']; fwrite($Handle, $Data); fclose($Handle); header("Location: index.php"); ?> index.php is just a simple include news.php. Am I missing an easy step? Any help would be great!! Thanks! Hi, I am tryng to use the gd functions in php to output an image of a lower quality and save it as another image: Code: [Select] header('Content-Type: image/jpeg'); $im = @imagecreatefromjpeg('SDC10424.JPG'); imagejpeg($im, null, 50);// this line lowers the image quality imagedestroy($im); but the problem is how to save it? I tried file_put_contents, but it didnt work, like fileputcontents("test.jpg", $im); Im displaying scores from my database from highest to lowest but 10 always comes out first. Why? I mostly if not always name my classes with the first letter capitalized.
I typically use enable autoloading as follows. I don't know when I started converting the class name to under-case. As such, however, I need to make the filenames undercase.
Is this the correct approach?
spl_autoload_register(function ($class) {
$class=strtolower($class);
if(file_exists(__DIR__.DIRECTORY_SEPARATOR.'classes'.DIRECTORY_SEPARATOR.$class.'.php')) {
require_once __DIR__.DIRECTORY_SEPARATOR.'classes'.DIRECTORY_SEPARATOR.$class.'.php';
}
});
Hey guys, Was wondering if someone could point me on the right path here. I am able to get the page URL using: $url = (!empty($_SERVER['HTTPS'])) ? "https://".$_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI'] : "http://".$_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI']; But was wondering if there was a way to drop the PHP variables attached to the URL. e.g. mysite.com/catalogue/?item=23 becomes mysite.com/catalogue/ Can anyone help me out? Thanks! Hey people, I know this is going back to basics but i'm just learning and want to make sure I do it all correctly. I want to pass variable's from one page to another. Now currently say I wanted to hold the users age and email address from his record in the database from page A and pass it to page B for it to be displayed back to him I would store each in their own session variable (so for the purpose of the explanation session_user_email=me@email.com and session_user_age=18. On page B I would then call the session and store it in a variable then destroy the session. Just out of curiosity is the the best way to pass the data? or should i use another method? i've read about session hijacking and i'm now worried about holding personal data within a session so i'm wondering what other people do?? Cheers i have problem : I have a page(page1) that sends details to the login page(page2) to check if the details are correct checks these and if there is a match it directs them to the next page.(page 3) The page1 sends 3 details to the page 2 that are stored into variavles but as there is no submittion when they check the details how do i then send these details onto the page 3 ? Hello I have this login page with code Code: [Select] <?php header("Expires: Thu, 17 May 2001 10:17:17 GMT"); // Date in the past header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified header ("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1 header ("Pragma: no-cache"); // HTTP/1.0 session_start(); //Below means if session database server crdentials is not set, require to use/set that connection then if (!isset($_SESSION['SESSION'])) require ( "../db_connection.php"); if($_SESSION['LOGGEDIN'] == TRUE) { header("Location: account.php"); exit; } $_SESSION['FORM_SUBMITTED'] = ""; $CRLF = chr(13).chr(10); $user_id = ""; if (isset($HTTP_GET_VARS["user_id"])) $user_id = $HTTP_GET_VARS["user_id"]; if ($user_id == '') { if (isset($_SESSION['user_id'])) $user_id = $_SESSION['user_id']; } //Validations $flg = ""; $error = ""; if (isset($HTTP_GET_VARS["flg"])) $flg = $HTTP_GET_VARS["flg"]; switch ($flg) { case "yellow": $error = "<font class=\"txt_main_str12_mar\"><BR>Your Account Has Not Been Verified.<BR>Check your email for Activation Instructions.<br>Click <a href=\"/courses/forgot_login.php\">here</a> to have the activation email resent.</font>"; break; case "red": $error = "<font class=\"txt_main_str12_mar\"><BR>That userid/password combination is not in our database.<br>Please Try Again.</font>"; break; case "blue": $error = "<font class=\"txt_main_str12_mar\"><BR>Your Session has Expired.<br>Please Login Again.</font>"; break; default: $error = " <br>"; } ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Login Page</title> <script language="JavaScript"> <!-- function loadedPage() { } function submitForm() { if (isEmpty(document.forms[0].user_id.value)) { alert("Please enter your UserID."); bSubmit = false; return false; } if (isEmpty(document.forms[0].password.value)) { alert("Please enter your Password."); bSubmit = false; return false; } document.forms[0].submit(); } //--> </script> </head> <body><center><br /><br /> <form name="form1" method="post" id="form1" action="/php/sessions/login/login_processing.php"> <table> <tr> <td>User ID</td> <td><input type="text" name="user_id" id="user_id" value="<?php echo $user_id ?>" size="24" maxlength="30" /></td> </tr> <tr> <td>Password</td> <td><input type="password" name="password" id="password" size="24" maxlength="30" /></td> </tr> <tr> <td> </td> <td><input type="submit" name="Submit" value="Submit" onclick="submitForm();" /></td> </tr> </table> </form> </center> </body> </html> and login processing page with code Code: [Select] <?php header("Expires: Thu, 17 May 2001 10:17:17 GMT"); // Date in the past header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified header ("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1 header ("Pragma: no-cache"); // HTTP/1.0 session_start(); //Below means if session database server crdentials is not set, require to use/set that connection then if (!isset($_SESSION['SESSION'])) require ( "../db_connection.php"); // reset session variables... $_SESSION['user_id'] = ""; $_SESSION['LOGGEDIN'] = false; $_SESSION['EMAIL'] = ""; $_SESSION['FNAME'] = ""; $_SESSION['LNAME'] = ""; // initialize variables... $user_id = ""; $password = ""; $email = ""; // make sure post parameters were sent... if (isset($HTTP_POST_VARS["user_id"])) $user_id = addslashes($HTTP_POST_VARS["user_id"]); if (isset($HTTP_POST_VARS["password"])) $passwd = addslashes($HTTP_POST_VARS["password"]); $_SESSION['user_id'] = $user_id; // form variables must have something in them... if ($user_id == "" || $password == "") { header("Location: ./login_page.php?flg=yellow&user_id=".$user_id); exit; } ?> I'm having problem with the last piece of code above, it's redirecting me eventhough I have entered a value on the userid and password from the login page... Is there anyway I can like "exit" the variables so i can use the same variable name later in the page? I have a php script which is viewed with ajax. The script does some important things and I want to make sure that it's viewed by only the ajax and now the user so I was thinking I'd need to pass a code from the main page using a GET in either php or more likely javascript, as I don't want the user to be able to see the code and then be able to just copy it and view the script with it. I've tried to sort this by saving Math.random() to the database by using ajax using a separate file, then underneath it use it to access the file like this: Code: [Select] function saveCode() { var xmlHttp = connect(); if(xmlHttp != false) {var code = Math.random(); xmlHttp.open('GET', '/inc/battle/saveCode.php?i='+code, true); xmlHttp.onreadystatechange = function() { if(xmlHttp.readyState == 4) { battleLog = xmlHttp.responseText; battleList = battleLog.split('\n'); battleCount = battleList.length; addLine(); } } xmlHttp.send('null'); } This would save the code to the database, then with a separate function, namely endBattle() the variable code would be used to access a file called endBattle.php?i= where this script would compare the code from the GET variable to the code in the database. However, I realised before finishing this that the user could manually set the code to whatever they want through the saveCode.php page, then view the endBattle.php Does anyone have any ideas how else I could validate my endBattle.php page so that users couldn't view it in their browser to run it? Forgive me if this is in the completely wrong forum, I just thought I'd see whether there were any php methods of doing this. Thanks! ok ive searched everywhere online for a webform that is in 2 or more parts... so the first page passes variables to the second page then saves info for next page to submit all info from both pages of application to a server etc. ideally my page would look like this... page 1: small form with 3 fields: 1. type of loan: [dropdown menu] a. Cashout refinance b. Purchase 2. Property type: [dropdown menu] a. single family b. multi-unit, etc. 3. Property State: [dropdown menu] a. states....... [Next Page] <---Button page 2: a few more fields: (for example:) 1. Approximate credit score [dropdown menu] a. 650-700 etc.... 2. Phone number [textbox] 3. email address [textbox] [submit button] I know its possible, i just need to be put on the path... any help is much appreciated! Hi all, I've been trying to create a page whereby a user enters a few details which is then emailed, but I'm seriously stuck on one issue. First page - console type Second page - serial number Only two steps at the moment as I need to figure it out. I'm passing everything into a variable from a post(ed) form. It appears on the next page fine, as I've been testing, but the details entered on the first page don't show on the third, however, the details from the second page do! Here is the code I have: Code: [Select] <?php switch ($step) { case "1": ?> <table width="75%" align="center"> <tr> <td colspan="2" valign="top"> <form action="?step=2" method="post" id="consoletype">Please select your console type<br /></td></tr> <tr><td align="center" valign="top" width="50%"> <label>Xbox 360 Original (Beige or Black)<br /><img src="images/xbox360orig.gif" width="250" height="250"><br /><input class="button" type="radio" name="console" value="xboxorig" /></label></td> <td align="center" valign="top" width="50%"><label>Xbox 360 Slim<br /><img src="images/xbox360slim.gif" width="250" height="250"><br /><input type="radio" name="console" value="xboxslim" /></label></td> </tr> <tr> <td colspan="2"> <input type="submit" value="Next"> </form> </td> </tr> </table> <?php echo $code; include("footer.php"); echo $code2; include("compat.php"); echo $code3; case "2": $console = $_POST['console']; echo $console; ?> Please enter your Xbox 360 Serial Number:<br /> <form action="?step=3" method="post"> <input name="serialno" type="text" size="20" maxlength="20"> <input type="submit" value="Next"> </form> <?php echo $code; include("footer.php"); echo $code2; include("compat.php"); echo $code3; case "3": echo "<br />"; $serialno = $_POST['serialno']; echo $serialno; echo $console; echo $code; include("footer.php"); echo $code2; include("compat.php"); echo $code3; } ?> I do understand it's messy at the moment but I don't see much point beautifying everything until I can solve this problem! Cheers! |
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