PHP - Value As 0 Treated As Empty String
If the value of $keyword is empty, only then it should print "Hi". else if should print "Hello".
Problem is sometimes the value $keyword will be "0". How to handle this condition Code: [Select] $keyword=0; //$keyword='abc'; if (empty($keyword)) { echo 'Hi'; } else { echo "Hello"; } Similar TutorialsHi all, I need some help. My ob_get_contents() is empty and gives me a empty file everytime. I tried different cache script it is still the same. I have also tried fwrite($fp, 'hello') In this case, it successfully writes to the file. But when i use ob_start and ob_get_contents, it will be empty. can anyone please advice. My simplified script is here <?php // Settings $cachedir = 'cache/'; // Directory to cache files in (keep outside web root) $cachetime = 600; // Seconds to cache files for $cacheext = 'html'; // Extension to give cached files (usually cache, htm, txt) // Ignore List $ignore_list = array( '/rss.php', '/search/' ); // Script $page = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; // Requested page $cachefile = $cachedir . md5($page) . '.' . $cacheext; // Cache file to either load or create $ignore_page = false; for ($i = 0; $i < count($ignore_list); $i++) { $ignore_page = (strpos($page, $ignore_list[$i]) !== false) ? true : $ignore_page; } $cachefile_created = ((@file_exists($cachefile)) and ($ignore_page === false)) ? @filemtime($cachefile) : 0; @clearstatcache(); // Show file from cache if still valid if (time() - $cachetime < $cachefile_created) { //ob_start('ob_gzhandler'); @readfile($cachefile); //ob_end_flush(); exit(); } // If we're still here, we need to generate a cache file ob_start(); ?> All My HTML AND PHP CODES TO RUN THE SITE <?php // Now the script has run, generate a new cache file $fp = @fopen($cachefile, 'w'); // save the contents of output buffer to the file @fwrite($fp, ob_get_contents()); @fclose($fp); ob_end_flush(); ?> Hello i have a system where leaders add members, i want to display a table of members WHERE the 'leader' field equals 'myusername' so that leaders only see members they added. when using the WHERE function i get a database empty as the result but when i remove the WHERE function i get all the data returned Code: [Select] include("system/include/session.php"); $myUname = $session->username; echo "$myUname"; function displayMembers(){ global $database; $q = "SELECT * " ."FROM ".TBL_MEMBERS." WHERE leader = '$myUname'"; $result = $database->query($q); $num_rows = mysql_numrows($result); if(!$result || ($num_rows < 0)){ echo "Error displaying info"; return; } if($num_rows == 0){ echo "Database table empty"; return; } echo "<table>\n"; echo "<thead> <tr> <th>Full Name</th> <th>Gender</th> <th>DOB</th> <th>Post Code</th> <th>Email Address</th> <th>Edit User</th> </tr> </thead>\n"; for($i=0; $i<$num_rows; $i++){ $Mprefix = mysql_result($result,$i,"prefix"); $Mfname = mysql_result($result,$i,"firstname"); $Mlname = mysql_result($result,$i,"lastname"); $Mgender = mysql_result($result,$i,"gender"); $Mdob = mysql_result($result,$i,"dob"); $Mpostcode = mysql_result($result,$i,"postcode"); $Memail = mysql_result($result,$i,"email"); echo " <tbody> <tr> <td>$Mprefix $Mfname $Mlname</td> <td>$Mgender</td> <td>$Mdob</td> <td>$Mpostcode</td> <td>$Memail</td> <td> <center> <form action=\"system/admin/adminprocess.php\" method=\"POST\"> <input type=\"hidden\" name=\"deluser\" value=\"$uname\"> <input type=\"hidden\" name=\"subdeluser\" value=\"1\"> <input type=\"submit\" class=\"button plain\" value=\"Edit Member\"> </form> </center> </td> </tr> </tbody>\n"; } echo "</table><br>\n"; } all help i am thankful for I noticed that strtolower() wasn't working. My script was adding blank rows to a text file that was supposed to be lowercase emails, so I wrote the following script to confirm it's not working: <?php $var = "Foo"; echo "$var<br />"; echo srttolower($var)."<br />"; $var = strtolower($var); echo "$var<br />"; ?> This page just prints "Foo" once on the screen where I should see Foo foo foo I then checked my error log, and I'm getting Call to undefined function messages for strtolower(). Any ideas? Hi all ! What would be the best way to identify and handle an empty array sent from JS to PHP? This rather simple looking problem has resulted in a lot of confusion to me. $_POST['myArray'] = ""; // an empty string -- this is how the empty array from JS is received in PHP
Hello Everyone, I am having issues where people are submitting null characters on my website (I.e. %00). Currently, I check if their is a value by using the empty function, and I also am checking if the value after running the trim command is =="". How can I check for these special characters to make sure that whatever they are submitting actually contains some sort of legitimate value? Thanks! Man, I'm having a rough week with questions--if you're following at home. Basically matching a Coach's first and last name to another table, which if matched will yield information about that coach's team. Code: [Select] // or get user by username $current_user = wp_get_current_user(); $current_first = $current_user->user_firstname; $current_last = $current_user->user_lastname; $current_id = $current_user->ID; echo '<div class="contact_form">'; echo $current_first . ' ' . $current_last .' :: '; $query = "SELECT * FROM schools WHERE coachFirst='".$current_first."' AND coachLast='".$current_last."'"; $result = mysql_query ($query); if(!$result) { echo 'There is not a match for your name.'; } else { while($school= mysql_fetch_array($result)) { echo $school['school'] . ' ' . $school['id']; include(ABSPATH ."wp-content/plugins/my-team/form.php"); } echo '</div>'; echo '<div class="roster">'; include(ABSPATH ."wp-content/plugins/my-team/roster.php"); echo '</div>'; } What I am looking for is that if any field in a database is empty, the form comes back and puts in the word "empty" into the web page, but not the database. I got this right now, it shows the first part fine, but the second part it doesn't show the "Empty" comment... I don't understand why... as far as I can tell the code is fine... Code: [Select] <?php //Nonconformity, Disposition, Comments and Comments & Additional Details echo '<div id="box3">'; if (!empty($row['Nonconformity']) || !empty($row['Disposition']) || !empty($row['Comments']) || !empty($row['CommentsAdditional_Details'])) { echo '<div id="non"><span class="b">Nonconformity: </span><br />' . $row['Nonconformity'] . '</div>'; echo '<div id="dis"><span class="b">Disposition: </span><br />' . $row['Disposition'] . '</div>'; echo '<div id="comm"><span class="b">Comments: </span><br />' . $row['Comments'] . '</div>'; echo '<div id="comma"><span class="b">Comments and/or Additional Details: </span><br />' . $row['CommentsAdditional_Details'] . '</div>';} else if (empty($row['Nonconformity']) || empty($row['Disposition']) || empty($row['Comments']) || empty($row['CommentsAdditional_Details'])) { echo '<div id="non"><span class="b">Nonconformity: </span><br />Empty</div>'; echo '<div id="dis"><span class="b">Disposition: <br /></span>Empty</div>'; echo '<div id="comm"><span class="b">Comments: <br /></span>Empty</div>'; echo '<div id="comma"><span class="b">Comments and/or Additional Details: </span><br />Empty</div>';} echo '</div>'; ?> Hi, I am trying to make some adjustments to uploadify.php which comes with the latest version of uploadify (3.0 beta), so that it works with a session variable that stores the login username and adds it to the path for uploads. Here is uploadify.php as it currently looks: Code: [Select] <?php session_name("MyLogin"); session_start(); $targetFolder = '/songs/' . $_SESSION['name']; // Relative to the root if (!empty($_FILES)) { $tempFile = $_FILES['Filedata']['tmp_name']; $targetPath = $_SERVER['DOCUMENT_ROOT'] . $targetFolder; $targetFile = rtrim($targetPath,'/') .'/'. $_FILES['Filedata']['name']; // Validate the file type $fileTypes = array('m4a','mp3','flac','ogg'); // File extensions $fileParts = pathinfo($_FILES['Filedata']['name']); if (in_array($fileParts['extension'],$fileTypes)) { move_uploaded_file($tempFile,$targetFile); echo '1'; } else { echo 'Invalid file type.'; } } echo $targetFolder; ?> I added Code: [Select] echo $targetFolder; at the bottom so that I could make sure that the string returned was correct, and it is, i.e. '/songs/nick'. For some reason though, uploads are not going to the correct folder, i.e. the username folder, but instead are going to the parent folder 'songs'. The folder for username exists, with correct permissions, and when I manually enter Code: [Select] $targetFolder = '/songs/nick';all works fine. Which strikes me as rather strange. I have limited experience of using php, but wonder how if the correct string is returned by the session variable, the upload works differently than with the manually entered string. Any help would be much appreciated. It's the last issue with a website that was due to go live 2 days ago! Thanks, Nick Hey there, Thanks for taking the time to read my thread. My issue is that I can't think of a way to edit a XML file using PHP's XML functionality and then assign the edited contents to a string instead of saving the file. Because my issue is that I have to edit the XML file based upon a string brought from a remote location then give it back to that remote location using a string again, to be exact I am doing it via Linux command line utilizing SSH2. This is what I managed to complete on my own. function CheckIVMPConfig($ServerID) { global $Panel; if(is_numeric($ServerID) && $this->IsValidServer($ServerID)) { // We select the game server that the FTP account was created for. $Servers = mysql_query("SELECT * FROM control_servers WHERE server_id = '".mysql_real_escape_string($FTPAccount['ftp_server'])."'"); $Server = mysql_fetch_array($Servers); // Here we select the Box ID that the game server is on. $Boxs = mysql_query("SELECT * FROM control_machines WHERE machine_id = '".$Server['server_machine']."'"); $Box = mysql_fetch_array($Boxs); // Now we select the required package for the box. $Packages = mysql_query("SELECT * FROM control_packages WHERE package_id = '".$Server['server_package']."'"); $Package = mysql_fetch_array($Packages); // Retrive the file. $Config = $CProtocol->exec("cat /home/{$Server['server_id']}/{$Package['package_config']}"); $Parse = SimpleXMLElement($Config); foreach($Parse as $Entry) // loop through our books { if($Entry->port != $Server['server_port']) { // edit the value } else if($Entry->maxplayers > $Server['server_slots']) { // edit the value } } } } Hello all, I'm trying to change the end of a javascript call based on the end of the url string. The common part of all the url strings is sobi2Id=, I'm trying to do this with strstr but am having no luck. I'm new to php so my syntax knowledge is terrible! at the moment i've got Code: [Select] <?php $url = $_SERVER['REQUEST_URI']; $tag = strstr ($url, 'sobi2Id='); echo $tag; ?> but this returns an unexpected T_STRING, expecting ',' or ';' Can anyone debug this? I may well be being really silly! This topic has been moved to PHP Regex. http://www.phpfreaks.com/forums/index.php?topic=326004.0 I have the following function, which takes a string with commas in it and attempts remove those commas. The way I have it here is that I use explode to take out the commas, which makes an array, and then iterate through that array to put a string back together without the commas. function tags_to_sort_by( $sortMeta ) { $sortByArray = explode(",", $sortMeta); $sortByCount = count($sortByArray); for ($i = 0; $i < $sortByCount; $i++) { $sortByString += $sortByArray[$i]; } return $sortByString; } What does not work is the following line: $sortByString += $sortByArray[$i]; Somehow that outputs a 0, which I don't understand. It should output something like: arrayItem1 arrayItem2 array3 etc. My question is if there either is an easier way to remove the commas from the original string or what I am doing wrong in this line: $sortByString += $sortByArray[$i]; // I am trying to concatenate each part of the array back into the string. Thanks a lot for help with this! hey guys im trying to find a string inside a string which could be made up of different things eg... {$test}, {$test1}, {$test2} etc (but the varable inside could be called anything hence maybe using regex im not sure?) is this possible?...i hope you guys understand....thanks
In PHP Version 8.0 shows error as : In previous versions of PHP it does not show any error. Please resolve the issue. I am looking for a date within larger string, lets say the date is December 4, 2010. To find it I use pattern and function below: $Pattern='/[(January|February|March|April|May|June|July|August|September|October|November|December)] \d, \d\d\d\d/i'; preg_match_all($Pattern, $String, $Matches, PREG_OFFSET_CAPTURE, $NumberPosition); The function finds the dates within the string but to my supprise the result I get in $Matches is: r 4, 2010 What I would like to get is: December 4, 2010 but don't know how it should be fixed. I thought that with the pattern I am using but obviously that is not the case. I need to know if a string exists within a string. I've tried using STRIPOS() but it returns zero or false if what I'm looking for is the first part of the string. I don't care what function I use, but I need to get a "true" when the needle string is present anywhere in the haystack string, even at location zero. Is there some way to set up the STRIPOS() statement? I've tried: if ((stripos($title, 'needle') > 0 ) if ((stripos($title, 'needle') = true ) and even if ((stripos($title, 'needle') >= 0 ) which returns true for everything, even when the needle string is NOT present. Any help appreciated. thanks, Tom Hello guys i am trying to figure out how to fwrite a string for example "Recommended Settings for Service Pack" under "Current Settings for Service Pack: 5.1.2600ServicePack3Build2600". I figure i cant use line number as an argument because the file report may be dynamic so i will need to use Current Settings as an argument. Please guide me if you have any ideas..thanks:) ! auditreport table ServicePackSetting Service Pack Requirement: Fail Current Settings for Service Pack: 5.1.2600ServicePack3Build2600 MajorAuditandAccountPolicies Maximum Password Age Requirement: Fail Current Settings for Maximum Password Age Requirement: 42 Minimum Password Length: Fail Current Settings for Minimum Password Length Requirement: 0 Ok... I had typed this post out ONCE already and when I clicked REFRESH IMAGE to get a diff captcha it ERASED MY POST LMAO this is not my night.... What I need help with is probably more simple then I can even think right now - ive been digging at this for 3 hrs now and im out of time for the night I have a DB Record storing ID's between PIPES | when the initial entry is made in DB it stores it like so |47| NOTE: the number could be different these are ID's number doesnt matter its just between Pipes When the second entry is added its added like so |47||67| say we have a total of 5 Entries |47||67||82||55||69| I need to find ID 82 in that string and it has to be between Pipes Find 82 in data between | and return that ID 82 I am putting between pipes because the ID's can be duplicate digits in different lengths so say I have 8 as my ID and down the string i have another id as 88 -- I cant possibly find the correct ID without some sort of seperation character so i used Pipes soo my end goal is the ability to search and if true or false do action if ($result == $find_id){ echo "ID is there"; }else{ echo "NOT THERE -- Adding it"; } Any help is appreciated guys Thanks SangrelX I have search page in the form of search.php?q=query, as the php script calls for other files and a long process. When visiting search.php directly, the value of q is indeed null, and it makes a long loop and use lots of cpu. How to kill the script or redirect to the main page when visiting search.php? |