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PHP - Checking If File Contains A String.
Hi Community! :-) (Sorry for my average english)
I recently started coding in php, till now, i allready have advanced skills in programming with C# and thus, had no problems writing my own script. Still, my script does not really work, i'm trying to check if a file contains a md5(string), but the script never finds the string. This is the script: (please don't mind any security issues, this is just a test. But if you have any tips and tricks to improve the security, i'd be glad to receive them)
<?php
$webname = $_POST["webname"];
$webcode = $_POST["webcode"];
$webpass = $_POST["webpass"];
if (file_exists("web/". $webname . ".html")) {
$file = file_get_contents("web/". $webname . ".html", "r");
if (strpos(md5($webpass),$file) !== false) {
$usergen = fopen("web/" . $webname . ".html", "w") or die("Unable to open file!");
fwrite($usergen, $webcode);
fwrite($usergen, "<!--- ". md5($webpass) . "--->");
fclose($usergen);
echo "Generated! You can view your site under /web/" . $webname . ".html";
}
else
{
echo "The file already exists but you entered the wrong Password.<br> Pressing the \"return\" Button will bring you back without loosing the code you entered.";
}
}
else
{
$usergen = fopen("web/" . $webname . ".html", "w") or die("Unable to open file!");
fwrite($usergen, $webcode);
fwrite($usergen, "<br><!--- ". md5($webpass) . " --->");
fclose($usergen);
echo "Generated! You can view your site under /web/" . $webname . ".html";
}
echo "<FORM><INPUT Type=\"button\" VALUE=\"Back\" onClick=\"history.go(-1);return true;\"></FORM>";
?>
What it does it pretty simple, you enter some html-code that'll be stored in the "webcode" variable, a password, let's say "apple" in "webpass" and the filename is stored in "webname".On first creation, a html-file is created with the <!--- md5(apple) ---> at it's end, the HTML Tags are needed to hide the string from any visitors. If someone wants to edit the File created before, he also enters "apple". Then the string will be looked up as md5(apple) in the file. If the strings match, it's true and the changes should be saved. Whatever i do, though, i'm allways ending up here if i try to edit an existing file: "The file already exists but you entered the wrong Password.<br> Pressing the \"return\" Button will bring you back without loosing the code you entered."; As i said, i'm a newbie, i'd appreciate any tips and help. Thank you in advance! Similar TutorialsHi, Im trying to check if this string only contains a-z A-Z and 0-9, but i am not sure it works Code: [Select] if(preg_match("/(A-Z][a-z][0-9]/", $payoutaddress)){ echo("Address not valid!"); }else{ } It will always process the else. but even with other characters it will do the same Say I have a string (stored in a variable we'll call $mystring) that could be something like this... "cat / dog / monkey / / / / / / / /" Or this string could also have no real data in it, in which case it would look like... "/ / / / / / / / / /" QUESTION: What is the easiest/most efficient way to run a check on that string to see if there are any non-slash characters in it. In plain english, the check would say, "Are there any letters in this string, or is it only spaces and slashes?" Any ideas? I'm working on a two-file upload form and want to be able to check the mime types of two filenames in a string variable.
The code below was working when the variable @resume_path contained just one filename. How can I modify this to accommodate two files?
when I echo $resume_path, I get, for example: cover_letter_centerline.doc, cover_letter_ctg.doc
Thanks!
//DO NOT TRUST $_FILES['upfile']['mime'] VALUE !!
//Check MIME Type by yourself.
$finfo = new finfo(FILEINFO_MIME_TYPE);
if (false === $ext = array_search(
$finfo->file($_FILES['resume_path']['tmp_name']),
array(
'txt' => 'text/plain',
'doc' => 'application/msword',
'pdf' => 'application/pdf',
),
true
)) {
throw new RuntimeException('Invalid file format.');
}
echo "Sorry, invalid file format. Please try again.";
echo $ext;
Hey there, Thanks for taking the time to read my thread. My issue is that I can't think of a way to edit a XML file using PHP's XML functionality and then assign the edited contents to a string instead of saving the file. Because my issue is that I have to edit the XML file based upon a string brought from a remote location then give it back to that remote location using a string again, to be exact I am doing it via Linux command line utilizing SSH2. This is what I managed to complete on my own. function CheckIVMPConfig($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 > $Server['server_slots']) { // edit the value } } } } Hi, I'm creating an upload section that limits users to upload the following file types: .zip .rar .doc .jpeg .gif When getting the type for .pdf files, it comes up as: application/force-download and for .rar files it comes up as: application/x-download If I do a check that says: if ($type=="application/force-download" || $type=="application/x-download") then will users only be able to upload .PDF and .RAR files? I'm assuming these two types will allow other formats as well. If this is the case, how can I check the extension of the file before the user is able to upload it. I was thinking of somehow capturing the last 3 letters of the filename, and then doing the check that way, except I'm not sure how to go about this. Any insight appreciated! Hi Guys, I'm using the following code to write emails to a .txt file: // Write the email to file $leadsFile = "leads/emails.txt"; $fh = fopen($leadsFile, 'a') or die ("can't open leads file!"); $writeData = "$conEM\r\n"; fwrite($fh, $writeData); fclose($fh); which works great, but i can't figure out how to NOT write an email to the .txt file if it's already on it, i'm not using a database for a change i'm stumped lol thanks for any help guys Graham I've got a page that allows users to upload a file (pdf, jpg, gif png). The user must be logged in in order to upload something. I have a query that checks if the user has already uploaded a file with the same name as the name of the file they are trying to upload. If they have not uploaded the file yet, the file uploads and they get a "Success" message. If the file has already been uploaded by the user, they will get the message, "You have already uploaded that file". When the query goes through, the message that shows is, "You have already uploaded that file". I ensured the file was not already in the database, and it still shows this error. I tried changing the if statement to say: if ($duplicate==0) instead of: if ($duplicate!=0) but it always shows the same error. Any ideas of what could be wrong with my code? my sql table looks like: Field Type Null id int(11) No userid int(11) No artist varchar(50) No title varchar(50) No file varchar(2083) No uploaded varchar(3) No Code: <?php session_start(); if (isset($_SESSION['username'])){ $username = $_SESSION['username']; $submit = $_POST['submit']; include_once('inc/connect.php'); $uploadsql = mysql_query("SELECT * FROM `users` WHERE `username`='$username'"); $uploadrow = mysql_fetch_assoc($uploadsql); $userid = $uploadrow['id']; $folder = "sheets/fromusers/"; if (isset($submit)){ // Name of file $name = $_FILES["location"]["name"]; // Type of file (video/avi) or image/jpg, etc $type = $_FILES["location"]["type"]; //size of file $size = $_FILES["location"]["size"]; //stores file in a temporary location $temp = $_FILES["location"]["tmp_name"]; // if there is an error $error = $_FILES["location"]["error"]; $artist = strtolower($_POST['artist']); $title = strtolower($_POST['title']); // Check if fields are filled in if($artist&&$title){ if ($error > 0) { $sheeterror = "<div id='messageerror'>An error occured. Please try again.</div>"; } else { // Determine the extension of the file // If file is This File.pdf // Then $ext is now equal to pdf $ext = strtolower(substr($name, strrpos($name, '.') + 1)); if ($ext=="pdf" || $ext=="gif" || $ext=="jpeg" || $ext=="jpg" || $ext=="png") { if ($size <= 26214400) // If size <= 25 megabytes { $duplicatecheck = mysql_query("SELECT file FROM upload WHERE id='$userid'"); $duplicate = mysql_num_rows($duplicatecheck); if ($duplicate!=0){ $sheeterror = "<div id='messageerror'>You have already uploaded this file!</div>"; } else{ $sheetquery = mysql_query("INSERT INTO upload VALUES ('','$userid','$artist','$title','$name','no')"); move_uploaded_file($temp, $folder.$name); $success = "<div id='messagesuccess'>Upload Complete!</div><div align='center'>".ucwords($artist)." - ".ucwords($title)."</div>"; } } else{ $sheeterror = "<div id='messageerror'>Your sheet must be less than 25 megabytes.</div>"; } } else { $sheeterror = "<div id='messageerror'>".ucfirst($ext)." files are not allowed!</div>"; } } } else{ $sheeterror = "<div id='messageerror'>Fill In All Fields</div>"; } } } else{ $sheeterror = "<div id='messageerror'>You must be logged in to add sheets!</div>"; } ?> <html> <head> <title>Add Sheet</title> <style> #container{ width: 350px; height: 150px; margin-left: auto; margin-right: auto; background-color: #cccccc; } #formhold{ width: 300px; text-align: right; margin-right: auto; } #messagesuccess{ background-color: #66CD00; width: 350px; margin-left: auto; margin-right: auto; } #messageerror{ background-color: #ff2211; width: 350px; margin-left: auto; margin-right: auto; } </style> </head> <body OnLoad="document.newsheet.artist.focus();"> <?php include_once('inc/nav.php'); ?> <center> <h1>Add Sheet</h1> <br /> <div id="container"> <br /> <div id="formhold"> <form action="addsheet.php" method="post" name="newsheet" enctype="multipart/form-data"> Artist: <input type="text" name="artist" size="30"><br /> Title: <input type="text" name="title" size="30"><br /> Sheet: <input type="file" name="location" size="17"><br /> </div> <center><input type="submit" name="submit" value="Submit"></center> </form> </div> <div id="bottomcont"> <?php echo $success, $sheeterror; ?> </div> </center> </body> </html> Hi, I'm trying to figure out the best way to determine if a user is currently downloading a file from my website. The way my site works, is the user waits 30 seconds and views an ad. After the timer is up the download becomes available. I heard that I could probably use a timestamp or something of the sort. I've read up on it but not sure how I could go about this. I am trying to check to see if a file size is acceptable before an upload but cant seem to get the right result no matter what i do. if i have my if statement below coded like this Code: [Select] if($_FILES["upload"]["size"] < 1024000){ echo'entered if statement<br />'; } else{ echo'entered else statement<br />'; } Then i always am entereing the if statememnt but if i have my if statement like this Code: [Select] if($_FILES["upload"]["size"] > 1024000){ echo'entered if statement<br />'; } else{ echo'entered else statement<br />'; } then i always seem to enter the else staement. I have tried with a VIREITY of differnt size files some from like 2kb to 10mb... i believe somewhere near the > or < is my problem but i dont seem to see it I have come across couple of similar answers for my question in this form, but could not solve my exact problem. Therefore I am posting this he I have an xml file as shown below: <?xml version="1.0" encoding="ISO-8859-1"?> <document> <user> <user_id>0121</user_id> <name>Tim</name> <file>0121.file</file> </user> <user> <user_id>0178</user_id> <name>Henry</name> <file>0178.file</file> </user> <user> <user_id>0786</user_id> <name>Martin</name> <file>0786.file</file> </user> <user> <user_id>1239</user_id> <name>Jan</name> <file>1239.file</file> </user> </document> I ask the user to input his user_id and post this user_id and perform a check on the entire xml file to check whether the entered user_id exists in the xml file or not. If exists then I go further if not echo a error message. Can anybody pull me out of this? Thanks Hi Im trying to write info to a text file and it works perfectly with the following script, but it writes duplicate info, how can I change it so that no duplicate records are being added to my file and just ignore inserting it without giving a message?
<?php
$myfile = fopen("users.csv", "a+") or die("Unable to open file!");
$mxituid = $_SERVER["HTTP_X_MXIT_USERID_R"];
$txt = "$mxituid\n";
fwrite($myfile, $txt);
fclose($myfile);
?>
Hello, I'm using curl to grab a new solar image once an hour or so from the Solar Dynamics Observatory (example below). I'm trying to archive new images and am struggling with that. If I download an image, the filetime() function returns the current time since I downloaded it and wrote it to a fresh file. The result is that the file is always "new", even if the image hasn't changed on the SDO website. Do you have an idea on how to check the last modified time of a file through curl or other means so that I'm not downloading duplicate images? Thanks a ton! //fetch image $ch = curl_init("http://www.somewebsite.com/theimage.jpg"); curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1); $file = "../images/latest/theimage.jpg"; $fp = fopen($file, "w"); curl_setopt($ch, CURLOPT_FILE, $fp); curl_setopt($ch, CURLOPT_HEADER, 0); curl_exec($ch); curl_close($ch); fclose($fp); //this part is no good... //get last modified date if (file_exists($file)) { $filetime = filemtime($file); } Hello there people. I'm looking for the easiest & most solid way to append 1 or 2 strings to a certain PDF file. I have an application which a logged-in user will be able to print. When he prints it, his name and a counter string must be appended in a blank space in the application. So I don't need to replace a string in a PDF or something, just append. The PDF file will always be the same: the application to be filled. I've heard somewhere that you can do it easily with the Zend framework. I've also heard for some other libraries like TCPDF & FPDF. Any suggestions? Thanks Here's what I need to do: I have a page that reads file and simply echos it. $mystring = file_get_contents($file); echo "$mystring"; There is one piece of info I need to parse out and then use as part of my page title. The phrase I need to parse is an HTML comment field and looks like this: <!--PageTitle=<some text here> --> I'm sure this is simple but I'm clueless as you can tell. How can I do this? DryAquaman This one stumped me, but maybe someone has figured it out. I'm trying to write a script that is able to decide whether a remote url is a directory or a file, this is fine until it comes to mod_rewrite(rewritten?) urls. ex. http://www.example.com/test Now this could be test.php,test.html etc., but in the rare case, it could also be a folder (example.com/test/index.php). Anyone have any ideas? Hi, I am relatively new to PHP, and I am making a php script that will FTP into a server and add a donator's ID to a text file. However, I need it to check and see if the user is already listed under a usergroup in that file, and if so, remove those lines of text. Here's an example of what values in the file look like. Basically, I don't know how I could compare the contents of the file and delete it or replace parts of it when necessary Code: [Select] "STEAM_0:0:33358541" { "deny" { } "group" "moderator" "name" "TR Cpt. K. Reese" "allow" { } } Also, notice the "deny"{} and "allow"{} These are used for storing special commands that you allow or disallow the user to have in a game. How would i get a PHP script to ignore that... This uses STEAM's framework for userids. All help is appreciated!! Thanks! Hello, Okay for some reason i cannot do this, when i open a file in php and search for string, it doesn't seem to work, some codes i tried: Code: [Select] $filename = 'example.txt'; $searchfor = 'hello'; $fh = fopen($filename, 'r'); $olddata = fread($fh, filesize($filename)); if(strpos($olddata, $searchfor)) { //fount it } else { //can't find it } fclose($fh); (above it just sample text, i was hoping you could give me sample code that will work) I tried many others like strstr, stristr, preg_replace etc etc, doesn't seem to find it.. this is my text file: Code: [Select] sdfsdfsdfsdfsdf[b]hello[/b]sdvsdf dfadfsdfsdfsddfsdf sdfsdfsdfs sdffffffffffffffffffffdv vsvdsdsf I don't want to find it by line, i want to simply open the text file and find the string.. thanks.. Is it pasible to find all occurrences of strings "North" and "North-East" in some txt file and save number of occurrences in some variables?? Hi to everyone. So, I have a little php code that reads line by line from a txt file, specifically i have 1 IP address for each line, and compares it with the current user's IP. It's like a little blacklist code. But it doesn't work. Can anyone see what i am doing wrong? Code: [Select] $file = fopen("ipblacklist.txt", "r") or exit("Unable to open file!"); //Output a line of the file until the end is reached $ipblacklist=''; $refile=''; while(!feof($file)) { if (fgets($file)== $_SERVER['REMOTE_ADDR']) $ipblacklist='error'; $refile=fgets($file); } fclose($file); Thank you in advance $poststart = "<!-- Begin -->";
$poststop = "<!-- End -->";
$parsedpost1 = explode($poststart, $contenu);
$parsedpost2 = explode($poststop, $parsedpost1[1]);
$contenu = $parsedpost1[0] . $poststart . $newpost . $poststop . $parsedpost2[1];
The above code will set 2 markers and replace whatever inside by $newpost, which is defined elsewhere in the page. But what if $newpost is so long that I'd be more comfortable storing it in a separate file?
How would I go about calling said file on that last line? (I'm referring to the specific syntax.)
Thx
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