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PHP - Unset Isnt Working Like I Want It To
I am using an if statement. If the user has a credit value of 1 or more it echos a variable thats a form. When the user submits the form, it takes a credit away, so the credit value is -1. I need the form to dissapear, because the form has a button that will execute a query that I dont want to execute.
So, usually unset() fixes this, but its not in my case. Heres the code Code: [Select] $a='<strong></strong>'; if ($hintcredit<1) $a.='<font style="color: #cc0000;">You have already requested a hint! Once you guess the correct number, you will be able to get another hint. </font>'; else $form= "<form action='blablabla' method='post'>blablablabla</form>"; $a.=$form; $a.='<strong></strong>'; echo $a; if ($_POST['request'] == "Retrieve Hint") { unset($form); $form= '<b>One of the digits in your number is '.substr($num, -1).'</b>'; $newquery= "UPDATE userinfo SET hint_credits = '-1' WHERE username = '".$_SESSION['login_name']."'"; echo $form; mysql_query($newquery,$link); } In this case, the form is still being shown. I need the form completely removed after the form has been submitted. This is simple and idk why its not working for me!? Similar TutorialsCode: [Select] $itemlisted = $_POST['itemlisted']; if ($itemlisted) { unset($_SESSION['items'][$itemlisted]); } it should work i don't get it. $itemlisted is 1... so it should delete [1] in the array. any idea why it's not working? it worked before, although now $value consists of a space and i think it may be messing things up. i pass a form field Code: [Select] <input type="text" name="attributes[]" id="attributes[]"> and then i do this... In the case above the 3 attributes[] passed are "Value 1", "Value 2", "Value 3" $attribute = ""; foreach($_POST['attributes'] as $key => $value) { $attribute .= $value . "/"; } $atr = explode("/",$attribute); #print_r($atr); foreach($atr as $key => $value) { #THIS IS WHERE THE ISSUE ARISES... $_POST[$value] wont work echo $_POST[$value] . "<BR>"; // DOES NOT WORK #echo $value . "<BR>"; // WORKS - shows "Value 1", etc.... #echo $_POST["VALUE 1"] . "--<BR>"; // DOESNT WORK EITHER } any ideas? im 90% certain if the $value variable was just "Value" and not "Value 1" it would work as it has before. I have 3 php's home.php createStep1.php createCheckPass.php createStep2.php home.php unsets some $_SESSION variables if they still exist from previous pages: Code: [Select] if(!empty($_SESSION['ame'])) { unset($_SESSION['ame']); } if(!empty($_SESSION['ject'])) { unset($_SESSION['ject']); } if(!empty($_SESSION['ports'])) { unset($_SESSION['ports']); } if(!empty($_SESSION['session_age_range'])) { unset($_SESSION['range']); } createCheckPass.php gets some posted information from createStep1.php, checks everything is ok and if so sets the above session variables createStep2.php gets the session data set by createCheckPass.php and then gets to work with the user inputting data into the db. The odd problem If createCheckPass.php finds any problems with the posted data it redirects the user back to createStep1.php with the sessions set, createStep1.php then displays the errors with the info set in the sessions to the user and everything works ok. If however the user sends the form from createStep1.php with no problems and the createCheckPass.php passes the user onto createStep2.php, something strange happens... The sessions set by the createCheckPass.php are only ever unset at the home.php, yet somehow createStep2.php loses the sessions and therefore doesn't run. What is even stranger is if i comment out the unsetting of the sessions from the home.php, everything works fine and none of the sessions are lost. Really really odd Summary: createStep2.php is reading the unset session lines of code from home.php when never asked to. Has anyone ever come across anything like this before? Code: [Select] <?php session_start(); require_once("connect.php"); ?> <html> <body> Thanks for buying!<br> Receipt:<br> Amount:<?php echo ($_POST["amount"]);?> <br>Type:<?php echo $_POST["type"];?> <br>Cost:<?php if($_POST["type"]=="pikemen"){ $cost = 20 * $_POST["amount"]; $price = $_SESSION["resources"] - $cost; $name = $_SESSION["username"]; $gained = $_POST["amount"] + $_SESSION["pikemen"]; mysql_query("UPDATE SET pikemen = '$gained' WHERE username = '$name'"); } mysql_query("UPDATE SET resources = '$price' WHERE username = '$name'"); ?> </body> </html> The script is supposed to use some information taken from an input box on the previous page to buy items from the shop, but its not working (it doesnt give errors, just doesnt change the amount of soldiers or resources... im trying to return the highest value in my table from the season_id column this is the code i have: Code: [Select] $test = mysql_query("SELECT * FROM `$show` WHERE [season_id]=(SELECT Max([season_id]) FROM `$show`)"); please advise? Hi, I'm making a php game, and the image map isn't working. I don't know if it is a php or javascript issue, I don't think it is an html issue but I could be wrong so feel free to move this post. lol. But basically, The image map is supposed to link to an array of images. That is how the game works. There is the overworld image map, you click on a link, and go to the zone images, all in the same window. Any help GREATLY appreciated because having the image map feature work would be awesome finally. thanks. Derek. here is the code that uses the image map. I cut out a lot of the unnecessary code , but the image map functionality related code is in there. Code: [Select] <?php session_start(); ////////////////////////////////////////////////////////////////////////////////// /////////////////////////////GAME NAVIGATION AND MONSTER SEARCH CODE NOT FINISHED////////////////////////////////// $locations[0] = array(); $locations[1] = array( 'background_images' => array( "<img src='sundragon_environments/ocean/ocean1_FRAME.jpg'/>", "<img src='sundragon_environments/ocean/ocean1_FRAME2.jpg'/>", "<img src='sundragon_environments/ocean/ocean1_FRAME3.jpg'/>", "<img src='sundragon_environments/ocean/ocean1_FRAME4.jpg'/>", "<img src='sundragon_environments/ocean/ocean1_FRAME5.jpg'/>" ), 'monster_images' => array( "<img src='sundragon_monsters_source/water/goldfish/goldfish.png'/>", "<img src='sundragon_monsters_source/water/eel/eel_transp_FRAME.png '/>", "<img src='sundragon_monsters_source/water/shark/shark_transp_FRAME.png'/>", "<img src='sundragon_monsters_source/water/octalisk/octalisk_transp_FRAME.png'/>", "<img src='sundragon_monsters_source/water/teardrop_ocean_protector/teardrop_ocean_protector.png'/>" ) ); $locations[2] = array( 'backgroundImages' => array( //Array images go here. ) ); if(isset($_GET['newLocation'])) { $_SESSION['current_location']=$_GET['newLocation']; } if(!isset($_SESSION['current_location']) && !isset($_SESSION['current_background']) && !isset($_SESSION['currentMonster'])) { $_SESSION['current_location'] = 0; $_SESSION['current_monster'] = 0; $_SESSION['current_background'] = 0; } if($_SESSION['current_location'] != 0) { if(!isset($_SESSION['current_background']) && !isset($_SESSION['current_monster'])) { $_SESSION['current_monster'] = 0; $_SESSION['current_background'] = 0; } if(isset($_GET['further'])) { //below is- inside the locations array, teardrop ocean (1) the background image is 4(example)+1 is set, then //do this if(isset($locations[$_SESSION['current_location']]['background_images'][$_SESSION['current_background']+1])) { $_SESSION['current_background']+=1; } if(isset($locations[$_SESSION['current_location']]['monster_images'][$_SESSION['current_monster']+1])) { $_SESSION['current_monster']+=1; } } elseif(isset($_GET['back'])) { if(isset($locations[$_SESSION['current_location']]['background_images'][$_SESSION['current_background']-1])) { $_SESSION['current_background']-=1; } if(isset($locations[$_SESSION['current_location']]['monster_images'][$_SESSION['current_monster']-1])) { $_SESSION['current_monster']-=1; } } $currentBackground=$_SESSION['background'][$_SESSION['current_background']]; $currentMonster=$_SESSION['monster'][$_SESSION['current_monster']]; } else { //?newLocation=1 means set it to Teardrop ocean. $currentBackground = ' <img src="aradia.jpg" width="256" height="328" border="0" usemap="#Map" /> <map name="Map" id="Map"> <area shape="rect" coords="5,176,81,249" href="?newLocation=1"/> </map>'; $currentMonster = ''; } /////////////////////////////////////////////////////////////////////////////////////////////////// ?> <!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>Realm of the Sun Dragon</title> <link rel="stylesheet" type="text/css" href="css/gamestyles.css"> <style type="text/css"> body { margin-top:-32px; padding:0; color: gold; } table { color: black; } .style8 {color: #000000} </style> </head> <body oncontextmenu="return false;"> <div id="container"> <div id="monster_message"> <?php echo "this is the monster battle and NPC talk window";?> </div> <div id="currentWeapon"> <img src="sundragon_interface_template/items/swords/sword_shrunk.png" width="190" height="65" /> </div> <div id="iframe_player_top_lft" > <div id="left_player_stats"><table align="center" width="30" border="0"> <tr> <td><strong>HP</strong></td> <td><strong><font color="red"><?php echo $playerHp;?></font></strong></td> </tr> <tr> <td><strong>MANA</strong></td> <td><strong><font color="green"><?php echo $echoPlayerMana;?></font></td> </tr> <tr> <td><strong>EXP</strong></td> <td><strong><font color="blue">999</font></strong></td> </tr> <tr> <td><strong>PLAT</strong></td> <td><strong><font color="white">999</font></strong></td> </tr> </table></div> <p> </p> <p> </p> <p> </p> <p align="center"><strong><br /> <span class="style8">Octalisk (Level <?php echo $currentMonsterLevel;?>) </span></strong> <br/> <strong><span class="style8">HP</span><font color="red"> <?php echo $monsterHp;?></font></strong> </p> <div id="spelleffectsleft" > <div class="divcenter"> <div align="center"> <div class="inline"> <div align="center">spell</div> </div> <div class="inline"> <div align="center">spell</div> </div> <div class="inline"> <div align="center">spell</div> </div> </div> </div> <!--end divcenter--> </div><!--end spell effects--> <div id="bottomspellsleft" > <div class="divcenter"> <div class="inline"> <div align="center">spell</div> </div> <div class="inline"> <div align="center">spell</div> </div> <div class="inline"> <div align="center">spell</div> </div> </div> <!--end div center--> </div><!--end bottomspells--> </div><!-- end player div--> <div id="iframe_spell_foreground"><?php echo $echoSpell;?></div> <div id="iframe_monster_background"><?php echo $currentBackground;?></div> <div id="iframe_transparent_monster"><?php echo $currentMonster;?></div> <!--not here--> <div id="iframe_player_top_right" > <table width="160" height="64" border="0" align= "center"> <tr> <td width="160"><div align="center"> <p><strong><br /> Silverglade (Level: <?php echo $currentPLayerLevel;?>)<br /> </strong></p> </div></td> </tr> </table> <div class="spelleffects" > <div class="divcenter"> <div class="inline"> <div align="center">spell</div> </div> <div class="inline"> <div align="center">spell</div> </div> <div class="inline"> <div align="center">spell</div> </div> </div> </div> <div class="bottomspells" > <div class="divcenter"> <div class="inline"> <div align="center">spell</div> </div> <div class="inline"> <div align="center">spell</div> </div> <div class="inline"> <div align="center">spell</div> </div> </div> </div> </div> <div id="iframe_chat_right"> the data from the chat message box will be output to this div</div> <!--not here--> <div id="iframe_player_center_bottom" align="center" ><div style="display: inline;"> <form style="display: inline; margin: 0;" ...> <form style="display: inline; margin: 0;" action='gamestart_NEWEST.php' method='post'><input type='submit' name='attack' value='Attack'/><input type="submit" name="search" value="search" /><input type="submit" value="cast spell" name="spell" /><input type="submit" name="inventory" value="Inventory"/></form> <form style="display: inline; margin: 0;" method="get" action=""><input type="submit" value="go further" name="further" /> <input type="submit"value="Go back" name="back"/></form> </form> </div> <div id="chat"> <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>"> <strong>Message:</strong> <textarea name="message"></textarea> <input type="submit" name="submit" value="Chat"> <input type="hidden" name="ip" value="<?php echo $_SERVER['REMOTE_ADDR']; ?>"> </form> </div></div></div> <!--not here--> <div id="log_off"> <a href="logout.php"><strong>LOG OFF</strong></a> </div> <!--not here--> </div> </body> </html> I dont understand why my header(Location) isnt working. Does any one see why?
<?php
include 'core/init.php';
logged_in_redirect();
include 'includes/overall/header.php';
if (empty($_POST) === false) {
$required_fields = array('first_name', 'last_name', 'username', 'password', 'password_again', 'email');
foreach($_POST as $key=>$value) {
if (empty($value) && in_array($key, $required_fields) === true) {
$errors[] = 'All field are required';
break 1;
}
}
if (empty($errors) === true) {
if (user_exists($_POST['username']) === true) {
$errors[] = 'Sorry, the user \'' . $_POST['username'] . '\' is already taken';
}
if (preg_match("/\\s/", $_POST['username']) == true) {
$errors[] = 'Your username can not have spaces';
}
if (strlen($_POST['password']) < 6) {
$errors[] = 'Your password must be at least 6 characters long';
}
if ($_POST['password'] !== $_POST['password_again']) {
$errors[] = 'Your passwords do not match';
}
if (filter_var($_POST['email'], FILTER_VALIDATE_EMAIL) === false) {
$errors[] = 'A valid email address is required';
}
if (email_exists($_POST['email']) === true) {
$errors[] = 'Sorry, the email \'' . $_POST['email'] . '\' is already is use. Please contact your site adimn is this is incorrect.';
}
}
}
if (isset($_GET['success']) && empty($_GET['success'])) {
echo '<div class="container"><div class="background-success text-center"><div class="alert alert-success center-background">You\'ve be registered successfully! Please check your email to activate your account</div><div class="center-background"><div class="center-text-background">if any issues occur please send us an email!! support@bettergamerzunited.com</div></div></div>';
} else {
if(empty($_POST) === false && empty($errors) === true) {
$register_data = array(
'first_name' => $_POST['first_name'],
'last_name' => $_POST['last_name'],
'username' => $_POST['username'],
'password' => $_POST['password'],
'email' => $_POST['email'],
'email_code' => md5($_POST['username'] + microtime())
);
register_user($register_data);
header('Location: register.php?success');
exit();
}
?>
<div class="container background">
<form action="" method="POST" class="form-horizontal" role="form">
<div class="form-group">
<label for="inputfirstname3" class="col-sm-2 control-label">First Name</label>
<div class="col-sm-10">
<input type="text" name="first_name" class="form-control" id="inputfirstname3" value="" autocomplete="off" placeholder="First Name">
</div>
</div>
<div class="form-group">
<label for="inputlastname3" class="col-sm-2 control-label">Last Name</label>
<div class="col-sm-10">
<input type="text" name="last_name" class="form-control" id="inputlastname3" value="" autocomplete="off" placeholder="Last Name">
</div>
</div>
<div class="form-group">
<label for="inputusername3" class="col-sm-2 control-label">Username</label>
<div class="col-sm-10">
<input type="text" name="username" class="form-control" id="inputusername3" value="" autocomplete="off" placeholder="Username">
</div>
</div>
<div class="form-group">
<label for="inputemail3" class="col-sm-2 control-label">Email</label>
<div class="col-sm-10">
<input type="email" name="email" class="form-control" id="inputemail3" value="" autocomplete="off" placeholder="Email Address">
</div>
</div>
<div class="form-group">
<label for="inputpassword3" class="col-sm-2 control-label">Password</label>
<div class="col-sm-10">
<input type="password" name="password" class="form-control" id="inputpassword3" autocomplete="off" placeholder="Password">
</div>
</div>
<div class="form-group">
<label for="inputpassword_again3" class="col-sm-2 control-label">Validate Password</label>
<div class="col-sm-10">
<input type="password" name="password_again" class="form-control" id="inputpassword_again3" autocomplete="off" placeholder="Validate Password">
</div>
</div>
<div class="form-group">
<div class="col-sm-10">
<p class="info">Please be aware that this does not mean that you are a member of Better Gamerz United. If you would like to be come a member please
contuine with the registration and then fill out our application. Other wise you will have limited use of this site. Thank you Team BGU!! </p>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" class="btn btn-primary pull-right register">Register</button>
</div>
</div>
</form>
</div>
<?php
}
include 'includes/overall/footer.php'; ?>
Hi guys Probably a simple but trying to figure out why I cant get this while loop to work (at least I think its the loop) Query works as it returns 1 row, but not all of them. Any help would be great! $sql = "SELECT * FROM requests ORDER BY leave_after DESC"; if ($result = mysql_query($sql)) { if (mysql_num_rows($result)) { while ($row = mysql_fetch_assoc($result)) { echo '<div id="resultholder">'; echo "<p>Request ID:" . $row['id'] . ", User ID: " . $row['user_id'] . ", Departing From: " . $row['departing'] . ", Going To: " . $row['destination'] . " , Leaving After: " . $row['leave_after'] . " , but Arriving Befo " . $row['arrive_before'] ."</p></div>"; echo '</div>'; } } } Thanks! Hey Guys, In this portion of my code I have tried to implement pagination, as the results try to display a page with over 100 mp3's with flash players on teh page, and of course the page just dies. However my attempt at pagination isnt actually working. can anyone help this noob? <? // how many rows to show per page $rowsPerPage = 20; // by default we show first page $pageNum = 1; // if $_GET['page'] defined, use it as page number if(isset($_GET['page'])) { $pageNum = $_GET['page']; } // counting the offset $offset = ($pageNum - 1) * $rowsPerPage; $query = " SELECT val FROM ax_music " . " LIMIT $offset, $rowsPerPage"; $result = mysql_query($query) or die('Error, query failed'); // print the random numbers while($row = mysql_fetch_array($result)) { echo $row['val'] . '<br>'; } $row2 = mysql_query("SELECT * FROM ax_music ORDER BY 'sort' ASC"); while($row = mysql_fetch_array($row2)){ ?> <tr> <td><?=$row[title];?></td> <td> <embed src= "musicplayer2.swf" quality="high" width="300" height="52" allowScriptAccess="always" wmode="transparent" type="application/x-shockwave-flash" flashvars= "valid_sample_rate=true&external_url=./music/<?=$row[mp3];?>" pluginspage="http://www.macromedia.com/go/getflashplayer"> </embed> </td> <td> <? if($row[visible] == 0){ echo "<strong>Not Playlisted</strong><br /> <a href=\"index.php?page=musicplayer&showid=$row[id]\">Add To Playlist</a>"; }else{ echo "<strong>Playlisted</strong><br /> <a href=\"index.php?page=musicplayer&hideid=$row[id]\">Remove From Playlist</a>"; } ?> </td> <td><a href="index.php?page=musicplayer&deleteid=<?=$row[id];?>"><strong>Delete</strong></a></td> <td><a href="./music/<?=$row[mp3];?>"><strong>Download</strong></a></td> </tr> <? } ?> </table> Hiya peeps! I have built this. <?php class extract { private $link; private $rec; public function __construct() { } public function __init($link, $rec = 0) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL,$link); curl_setopt($ch, CURLOPT_TIMEOUT, 50); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $this->_data = curl_exec($ch); curl_close($ch); $this->_emails = array(); if($rec == 1) { if(preg_match_all('/((?:http|https):\/\/(?:www\.)*(?:[a-zA-Z0-9_\-]{1,15}\.+[a-zA-Z0-9_]{1,}){1,}(?:[a-zA-Z0-9_\/\.\-\?\&\:\%\,\!\;]*))/', $this->_data, $urls)) { foreach($urls[0] as $k => $v) { $this->__init($v, 1); } } } return $this->emails(); } public function emails() { if(preg_match_all('/(\w+\.)*\w+@(\w+\.)*\w+(\w+\-\w+)*\.\w+/', $this->_data, $emails, PREG_SET_ORDER)) { foreach($emails as $dk => $dv) { foreach($dv as $fk => $fv) { if(preg_match('/^[^@]+@[a-zA-Z0-9._-]+\.[a-zA-Z]+$/', $fv)) { $this->_emails[] = $fv; } } } } return $this->_emails; } public function multi_unique($array) { foreach ($array as $k => $na) { $new[$k] = serialize($na); $uniq = array_unique($new); } foreach($uniq as $k => $ser) { $new1[$k] = unserialize($ser); } return $new1; } } $go = new extract(); $done = $go->__init($_POST['site'], $_POST['deep']); print_r($done); ?> <center><form action="#" method="post"> Site:<br /><input type="text" name="site"><br /><br /> Go-Deep:<br /><select name="deep"><option value="0" selected>No</option><option value="1">Yes</option></select><br /><br /> <input type="submit" name="submit"> </form></center> It works, but only on one URL, I have setup a html page containing an email address and a link to another page containing an email address, so technically it should return two email addresses. But it doesn't, it only displayed the email address on the url that is inputted. Does anyone have any idea why? Many thanks, James. the strange thing is...I have the exact same script on another part of my page and it works! the only thing that changed are the variable names and the path (which ive checked 27000 times) What this should do is check if you have a signature in the external file and if you do and you fill out the form correctly then it replaces your old signature with your new one. and if you dont have a signature already and filled out the form correctly then it should write your signature to the file...for some reason this isnt working after checking and rechecking...i need a second pair of eyes. Help please! if (isset($_POST['change_submit2'])) { if (($_SESSION['logged_in'] == '1') && ($signature_test != '1') && ($_POST['change_box2'] == 'CHANGE') && ($invalid_character_test != '1') && ($invalid_character_test1 != '1')) { $fh1 = fopen($users_signatures_path, 'r+'); fwrite($fh1, $sig_front); frwrite($fh1, $_POST['signature']); fwrite($fh1, $sig_back); fwrite($fh1, ' '); flose($fh1); echo 'You have succesfully created a signature!'; } elseif (($_SESSION['logged_in'] == '1') && ($signature_test == '1') && ($_POST['change_box2'] == 'CHANGE') && ($invalid_character_test != '1') && ($invalid_character_test1 != '1')) { $users_signatures_path1 = "../../users/users_signatures.txt"; $fh1 = fopen($users_signatures_path1, 'r+'); $read_fh1 = fread($_fh1, filesize($users_signatures_path1)); $the_new_sig = str_replace($mcurrent_sig, $mnew_sig, $read_fh1); fclose($fh1); $fh1 = fopen($users_signatures_path1, 'r+'); fwrite($fh1, $the_new_sig); fclose($fh1); echo $mnew_sig; echo 'Your signature has been succesfully changed!'; } elseif ($_SESSION['logged_in'] != '1') { echo 'You need to be logged in!'; } elseif ($_POST['change_box2'] != 'CHANGE') { echo 'You must fill in the "CHANGE" box!'; } elseif ($invalid_character_test == '1') { echo 'Contains illegal characters!'; } elseif ($invalid_character_test1 == '1') { echo 'Contains illegal characters!'; } } Hello! This may sound like a stupid question but i have been trying to get this working all day and its driving me crazy.
Ive been asked to take over development of this project, he sent me his code and its a little out of date so im trying to update it. Here is what i cant work out.
I have this little snippet of code:
if ($page == "showthread"){
showThread();
}
There are several more like that, but you dont need a whole list.
That code seems to be throwing up this error when i go to that specific page:
Notice: Undefined index: error in .....
All well and good, i would usually do this:
if (isset($page) == "showthread"){
showThread();
}
Thats fine and dandy, the error goes away. But now, when i go to that page, it redirects me and gives me my error message for a non-existing page.
Its really frustrating me. Can you help me fix this little error?
Good morning! I've spent hours on this to no avail. My understanding is that unset() only deletes the copy of the variable local to the current scope. But I am getting a very different result. I have the following structure and output. What am I doing wrong? <?php first_function(); second_function() { for ($count = 0; $count < $max; $count++) { $my_array = array[]; //initialize my array, local in this scope but can be called global in nested functions print_r($my_array ); //print 1: array should be always empty but is only in empty in FIRST loop. third_function(); //fills the array with numbers, see below, nested function declaring a global array print_r($my_array ); //print 3 of my_array, should be full of numbers from third_function global changes unset($my_array); //delete my array so I can start with new array in next loop print_r($my_array ); //print 4 of my_array, should be unknown variable print('End one loop'); } } third_function() { global $my_array; //declare my global variable //...fill my now global array with stuff... print_r($my_array ); //print 2: should be filled with numbers. And it is. } ?> My output amazingly looks something like this Array() Array(45,48,38...all my numbers...) Array() ERROR: Notice -- Undefined variable: my_array End one loop Array(45,48,38...all my SAME numbers again as if array was NOT unset...) ...... The first and second print lines make sense. But shouldn't the third line be the array filled with numbers generated in third_function? The fourth line error makes sense as the variable is unset. But WHAT did I unset? The next time around in the loop, the array contains the SAME numbers from the previous loop and my new numbers simply get appended to the end of the ever growing array. Why? This should not be that difficult but seems to be driving me crazy. Any help would be greatly appreciated. alexander I have a link that sets a get variable that then performs a search based on that get variable. How after I the page has reloaded with the new search results how can I removed the $GET from the end of the url? Thanks for any help. Hi All I was wondering how important it is to unset() all your variables once used? Most of my code is object oriented so the functions discard any variables created within them. But do I have to unset() all the objects that I instantiate? Also how much will it improve on speed if I do so? Regards, Magnetica Hello, Am writing a script with lots of variables and its called by require() into the main file. But I probably have an interference in variable values because I get incorrect results. I have to unset all variables first before I enter the new script but there are lots of them. Is there a way I can unset all variables with a simple line of code or function? Thanks in advance hi i have an array that returns the longitude, latitude and timestamp of multiple users. then i use a for each loop to echo the details to add markers to google maps. the problem is that if one of the users has no gps position i dont want to include it it my foreach loop. Code: [Select] foreach($positions as $name => $status) { echo 'add(jQuery(this), number += 1, "' . $name . '", "map_post.php?n=' . $name . '&u=' . $status['user_id']. '", "' . date("d-m-Y @ h:i:s",$status['timestamp']) . '", "' . $status['latitude'] . '", "' . $status['longitude'] . '", "' . $status['user_id']. '");'; } how can i get the foreach to ignore the users with no data? I have one entity: $_SESSION['order']['content']['lol'] I then unset this entity: unset($_SESSION['order']['content']['lol']); I then try to unset the following as it is now empty (because I removed "lol"), buts its not working: if (empty($_SESSION['order']['content'])) { unset($_SESSION['order']['content']); } Does anyone know why and how I can go about getting it to unset? Afternoon, I've hit a brick wall, and I'd like someone to point out where I'm going wrong here as I can't for the life of me think of whats amiss. As it is, I'm trying to set a message to the user in session form, so the function is called passing the error ID. As you can see below, it finds it and assigns it to the private variable within the class. Code: [Select] <?php public function set($name){ // Check if the message is available... if(array_key_exists($name, $this->errors)){ // Set it. $_SESSION['cM'] = $this->errors[$name][0]; } else { $_SESSION['cM'] = 'TEST'; } } ?> To then return the message, the function is simply called using the below function which should return the error? Now, when I don't unset the session in anyway shape or form the message is displayed but when I do unset it, no message appears. I was under the impression that as I had already assigned the contents of the session to the $message variable that the session itself was then useless and as such I could then unset it for later use. But apparently not? Code: [Select] <?php public function get(){ // Is something set? if(isset($_SESSION['cM'])){ // Yes, into a variable! $message = $_SESSION['cM']; // Unset the session for later use. //unset($GLOBALS['cM']); - Doesnt make any difference. //$_SESSION['cM'] = false; - Doesnt make any difference. //unset($_SESSION['cM']); - Doesnt make any difference. // Return the message. $f = "<p style=\"color:green\">"; $f.= $message; $f.= "</p>"; return $f; } // No, Return false then to stop an error appearing. return false; } ?> As you can see I have tried unsetting the global variable, just session itself and clearing the session but to no avail. Any ideas? Code: [Select] $age = 18; //$age =___; //not working say error. unset($age); //working whats wrong? thanks |
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