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PHP - Php String Compression Function Differences
Hello, I am working on a caching class and all I have left to figure out now is the string compression. I am storing files locally on the server and may eventually expand the option for storing it in the database. But I want to reduce file size while not sacrificing speed as much as possible.
The first function I used was the bzip2 bzcompress function. It did a great job with a 92% compression rate, but I noticed a half-second to full-second delay in the decompression. So what I would like to know is does anyone know which compression functions offer the most speed and what their compression ratios look like? This is for a simple string (well XML that I have reduced with some string replacements), so there is no pre-compression to it. The compression libraries available to me on my server are these: zlib, zip, and bz2 Thoughts? Thanks, Patrick Similar TutorialsI am looking at using PHP (or whatever) to compress images/video/music when it is uploaded to be stored on the server and decompressed when required on the webpage. I know I will have to make a decompress function so it knows when to decompress to its full size, but any ideas on how to do the compression. Requirements: biggest, best and efficient compression of music/image/video files. Thanks in advance. Hi all Please see function below. the error I get is Quote Fatal error: Function name must be a string in D:\Documents\AI24\Web\managerReports\functions.php on line 97 and I've no idea why. I've highlighted line 97, rather than put all prior functions in too. Code: [Select] <?php function drawGraph($ed, $y2007, $y2008, $y2009, $y2010, $y2011, $name){ //Create image size and initiate $image=imagecreate(750,700); //define colours $background=imagecolorallocate($image, 255, 255, 255); $white = imagecolorallocate($image, 255, 255, 255); $black = imagecolorallocate($image, 0, 0, 0); $red = imagecolorallocate($image, 255, 0, 0); $blue = imagecolorallocate($image, 0, 51, 204); $green = imagecolorallocate($image, 0, 204, 255); $pink = imagecolorallocate($image, 204, 0, 255); $brown = imagecolorallocate($image, 153, 51, 0); //draw axes imageline($image, 0, 600, 650, 600, $black); imageline($image, 100, 10, 100, 700, $black); //calculate top coordinates $y2007a=600-($y2007*50); $y2008a=600-($y2008*50); $y2009a=600-($y2009*50); $y2010a=600-($y2010*50); $y2011a=600-($y2011*50); //draw recantgles imagefilledrectangle($image,110,600,210,$y2007a, $red); imagefilledrectangle($image,210,600,310,$y2008a, $blue); imagefilledrectangle($image,310,600,410,$y2009a, $green); imagefilledrectangle($image,410,600,510,$y2010a, $pink); imagefilledrectangle($image,510,600,610,$y2011a, $brown); //add x labels imagefttext($image, 18, 0, 140,650, $black, 'arial.ttf', "2007"); imagefttext($image, 18, 0, 240,650, $black, 'arial.ttf', "2008"); imagefttext($image, 18, 0, 340,650, $black, 'arial.ttf', "2009"); imagefttext($image, 18, 0, 440,650, $black, 'arial.ttf', "2010"); imagefttext($image, 18, 0, 540,650, $black, 'arial.ttf', "2011"); //add values imagefttext($image, 18, 0, 160, $y2007a-50, $black, 'arial.ttf', "$y2007"); imagefttext($image, 18, 0, 260, $y2008a-50, $black, 'arial.ttf', "$y2008"); imagefttext($image, 18, 0, 360, $y2009a-50, $black, 'arial.ttf', "$y2009"); imagefttext($image, 18, 0, 460, $y2010a-50, $black, 'arial.ttf', "$y2010"); imagefttext($image, 18, 0, 560, $y2011a-50, $black, 'arial.ttf', "$y2011"); //add title imagefttext($image, 15, 0, 130,25, $black, 'arial.ttf', "Courses Attended per year for $name 2007 to 2011"); //produce image $filename = "$ed.jpg"; imagejpeg($image, $filename); //save to TEMP TABLE //read file $fp = fopen($filename,'r'); $data = fread($fp, filesize($filename)); $data = addslashes($data); //insert into table $sql = "INSERT INTO graphs (ed, image) VALUES ( $ed, '$data')"; mysql_query($sql); //delete file from server //line 97 $fclose("$filename"); unlink($filename); imagedestroy($image); } Hello guys, basically i am doing a search function based on regular expressions. What i have done is to store the string i want to regex as a variable. Variable is named as $new_string -> preg_split("/\.\(.*\)\.\(.*\)/", $file); So inside the while loop, i would like to call another variable to store $new_string. However, I found out that the preg_split function stored inside $new_string doesn't work. If i use preg_split function directly inside the while loop it will work - > refer to //$parts = preg_split("/\.\(.*\)\.\(.*\)/", $file); I have troubleshooted it for like 1 hour plus.hope someone can help me thanks <?php //"$DOCUMENT_ROOT"."new/"; $current_dir = 'C:\xampp\htdocs\Audit_Reports'; //Put in second part, the directory - without a leading slash but with a trailing slash! $dir = opendir($current_dir); // Open the sucker $newArgument = $_POST[argument]; $newArgument1 = $_POST[argument1]; $string ='preg_split("/\.\(.*\)\.\(.*\)/", $file);'; $new_string = preg_replace("#\/\\\.\\\\\(\.\*\\\\\)#","/\.\\($newArgument\)",$string); $new_string = preg_replace("#\\\.\\\\\(\.\*\\\\\)#","\.\\($newArgument1\)", $new_string); echo ("<p><h1>List of Audit Reports:</h1></p><hr><br />"); while ($file = readdir($dir)) // while loop { //$parts = preg_split("/\.\(.*\)\.\(.*\)/", $file); $parts = $new_string; echo $parts; if (is_array($parts) && count($parts) > 1) { // does the dissected array have more than one part $extension = reset($parts); // set to we can see last file extension if ($extension == "Audit_Report" OR $extension == "audit_report") // is extension ext or EXT ? echo "<a href=\"$file\" target=\"_blank\"> $file </a><br />"; // If so, echo it out else do nothing cos it's not what we want } } echo "<hr><br />"; closedir($dir); // Close the directory after we are done ?> <form action="readdirectory.php" method='post'>Search Files:<p> Hostname: <input type="text" name="argument"<p> IP Address: <input type="text" name="argument1"<p> Date: <input type="text" name="argument2"<p> <p><input type="submit" name="submitFinal" value="Update"> <p> </form> </p> Hi I'm setting up my own framework for a project. I was coming to the point of completion and thought up of a new idea. Is it possible to call a function like this from a class: class myClass { function func($param) { echo "Hello world". $param; } } $class = 'myClass'; $func = "func(' It\'s time to partey!')"; $$class = new $class; $$class->$func; Thanks for any help! Hello everyone, Pretty much what I am trying to do is run a query and based of the queries result, return a string - as of now it is turning up blank and cant seem to pass any strings through the function. Current function: function addNewBookmark($hash,$url,$title,$username){ Code: [Select] $query = "INSERT INTO bookmarks (hash,url,title,username) VALUES '".md5($hash)."', '".$url."', '".$title."', '".$username."')"; $result = mysql_query(query, $this->connection); $message = ''; if(mysql_affected_rows($this->connection)!=1) { $message = 'This URL already exists in the database!'; return $message; } else $message = 'The URL was shared!'; return $message; } The above code seems to run fine, just cant seem to pass a string...read that you can possibly use a __toString function? but that keeps throwing errors when I try to work with it. Thanks all! Hey guys! I know there are a lot of topics about this, but mine is a bit different. I am creating my first contact form with php and I ran across this error after twinking with the php file: Fatal error: Function name must be a string in /www/zymichost.com/m/t/l/mtlproductions/htdocs/Contact2.php on line 11 Here is what my code looks like currently: Code: [Select] <html> <body> <?php include '/www/zymichost.com/m/t/l/mtlproductions/htdocs/header.inc.php';?> <?php include '/www/zymichost.com/m/t/l/mtlproductions/htdocs/menu.inc.php';?> <?php if ($missing || $errors) { ?> <p class="warning">You did not enter the required information. Please try again.</p> <?php }; ?> <?php ($errors); ($missing); if ($isset($_POST['send'])) { $to = 'tate.mikey@gmail.com'; $subject = 'New Feedback Received on MikeyTateLive Productions website'; } $expected = array('name', 'email', 'comments'); $required = array('name', 'comments'); ?> <div id="wrapper"> <div id="maincontent"> <h2>I am here when you need me!</h2> <p>Enter the information below and click send. Hope to hear back from you soon. =)</p> <p>*=required</p> </div> </div> <form id="feedback" method="get" action=""> <p> <label for="name">*Name:</label></br> <input name="name" id="name" type="text" class="formbox"> </p> <p> <label for="email">Email:</label></br> <input name="email" id="email" type="text" class="formbox"> </p> <p> <label for="comments">*Comments:</label></br> <textarea name="comments" id="comments" cols="60" rows="8"></textarea> </p> <p> <input name="send" id="send" type="submit" value="Send" </p> </form> <?php include '/www/zymichost.com/m/t/l/mtlproductions/htdocs/footer.inc.php';?> <?php include '/www/zymichost.com/m/t/l/mtlproductions/htdocs/processmail.inc.php';?> </body> </html> I originally had lines 9 and 10 set up like this except for the php opening and closing tags, lol: Code: [Select] <?php $errors(); $missing(); ?> But as you can see on my full code at lines 9 and 10, I made a minor change to it and now the error comes from line 11 instead of 9 and 10. And now I could use some help with this..... Thanks in advance for help. I have a PHP script that has a function called traverseXMLNodes and it passes an xml string. I want anyone with a username and password to be able to call this function from his website or application or programming. In short i want my site to act as an API(Application Programming Interface). I am really stuck as to how to go about this. There are other functions i would like to call as well so traverseXMLNodes is not the only function i want to my "API" users to access. Below is the code I am using. the filename for my php i called remote.php. I am using the following query string to test and no results are returned. http://localhost/testfolder/remote.php?xmlstring=20 Code: [Select] <?php $allowedfuncs = array('xmlstring','remotefunction2'); if(in_array($_get['xmlstring'], $allowedfuncs)) { $func = $_get['xmlstring']; $output = traverseXMLNodes($func); // This calls $_get['funccall']() echo $output; } else { exit(); } function traverseXMLNodes ($func) { echo "The XML string is"; echo "<br/>"; echo $func; echo "<br/>"; } /* More functions go here */ ?> I have sen this function before but can not remember what it is or how to code it. It allows you remove only defined characters from the end of the string. I am not looking to replace any occurrence anywhere in the phrase, just the end. For example lets say I want to remove"ld!" from phrase "Hello World!" That function would return "Hello Wor" Thanks ok so this problem has been laughing at me for quite some time now I tryed using some inline php in a form to pass it to my login script. The problem is that whenever the form gets submitted the variable r doesn't contain the actual microtime but it contains the inline php as a string: Code: [Select] <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Snitch</title> <link rel="stylesheet" type="text/css" href="templates/css/snitch1440x900.css" /> </head> <body> <div id="login-achtergrond"> <div id="login"> <form action="." id="loginform" name="login" method="post"> <input type="hidden" name="actie" value="Login"></input> <input type="hidden" name="r" value="<?php echo microtime();?>"></input> <input type="text" id="gebruikersnaam" name="gebruikersnaam" value="" style="opacity:0.7;filter:alpha(opacity=70)"></input> <input type="password" id="paswoord" name="paswoord" value="" style="opacity:0.7;filter:alpha(opacity=70)"></input> <input id="aanmelden" type="submit" name="submit" value="" style="opacity:0;filter:alpha(opacity=0)"> </form> </div> <div id="registreer"> </div> </div> </body> </html> the $_POST['r']; contains "<?php echo microtime();?>" instead of for example: 0.53192500 1305636839 does someone know what I am doing wrong here? I also tryed doing it like this: Code: [Select] <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Snitch</title> <link rel="stylesheet" type="text/css" href="templates/css/snitch1440x900.css" /> </head> <body> <div id="login-achtergrond"> <div id="login"> <form action=".r=<?php echo microtime();?>" id="loginform" name="login" method="post"> <input type="hidden" name="actie" value="Login"></input> <input type="text" id="gebruikersnaam" name="gebruikersnaam" value="" style="opacity:0.7;filter:alpha(opacity=70)"></input> <input type="password" id="paswoord" name="paswoord" value="" style="opacity:0.7;filter:alpha(opacity=70)"></input> <input id="aanmelden" type="submit" name="submit" value="" style="opacity:0;filter:alpha(opacity=0)"> </form> </div> <div id="registreer"> </div> </div> </body> </html> both $_POST and $_GET contains a string instead of the actual microtime single quotes didn't work eather i have made function of prepare or check the mysql real escapte string but when i run this code it gives two warnings msg Warning: mysql_real_escape_string() [function.mysql-real-escape-string]: Access denied for user 'SYSTEM'@'localhost' (using password: NO) in C:\wamp\www\cart\include\db.php on line 42 Warning: mysql_real_escape_string() [function.mysql-real-escape-string]: A link to the server could not be established in C:\wamp\www\cart\include\db.php on line 42 kindly tell me what is this msg about how to solve it my code is 37 public function mysql_prep($value){ 38 $magic_quotes_active=get_magic_quotes_gpc(); 39v$new_enough_php=function_exists("mysql_real_escape_string"); 40 if($new_enough_php){ 41if($magic_quotes_active){ $value=stripslashes($value);} 42 $value= mysql_real_escape_string($value);} 43 else { 44 if($magic_quotes_active){$value=addslashes($value);} 45} 46 return $value; 48 } I am having more trouble with my code, please see the error below when loading my browser: Here is my blog Fatal error: Function name must be a string in W:\www\blog\index.php on line 14 My code is: Code: [Select] <?php mysql_connect ("localhost", "root", "gwalia"); mysql_select_db("blog"); ?> <html> <head> <title>Show My Blog</title> </head> <body> Here is my blog<hr/> <?php $sql = mysql_query("SELECT * FROM blogdata ORDER BY id DESC"); While($row = mysql_fetch_array($sql)){ $title = $row('title'); $content = $row('content'); $category = $row('category'); ?> <table border='1'> <tr><td><?php echo $title; ?></td><td><?php echo $category; ?></td></tr> <tr><td colspan='2'><?php echo $content; ?></td><td></tr> </table> <?php } ?> </body> </html> Line 14 is '$title = $row('title');'. But i do not know what is wrong with my code, help please? I am making a php/ajax chat, when a post is sent to the chat, a timestamp using mktime() is stored in the database to show when that post was sent. My concern is that I am from England and my timestamp is GMT +0. Will people from different locations around the world see the wrong times that other users post into the chat? If so what do I need to do to make this work ideally? Thanks With a prior version of Php, this code was acceptable.
$query = sqlsrv_query($conn, $sql);if ($query === false){ exit("<pre>".print_r(sqlsrv_errors(), true));}while ($row = sqlsrv_fetch_array($query)){ $sumUsageKWH += $row[totalUsage];}sqlsrv_free_stmt($query);?>
Now, with php 5.6.3, I have to add a couple of things.
$query = sqlsrv_query($conn, $sql);if ($query === false){ exit("<pre>".print_r(sqlsrv_errors(), true));}while ($row = sqlsrv_fetch_array($query)){ $sumUsageKWH += $row['totalUsage'];}sqlsrv_free_stmt($query);?>
due to an error prompt. Once I make the corrections, I have a new errors all over the place. Is there a difference in defining a variable with 5.6.3?
Edited by Butterbean, 10 January 2015 - 01:49 PM. Hi, I have 2 db fields with timestamp datatype (ClockingInDate and ClockingOutDate) and i am trying to get the difference between them then update the new db called duration with float datatype field. PHP:
if (isset($_POST["clockout"])){
$result3=mysqli_query($con, "select * from attendance_records where OracleID='$session_id'")or die('Error In Session');
$row3=mysqli_fetch_array($result3);
$end_date = $row3['ClockingOutDate'];
$startdate = $row3['ClockingInDate'];
$diff = strtotime($end_date) - strtotime($startdate);
$fullDays = floor($diff/(60*60*24));
$fullHours = floor(($diff-($fullDays*60*60*24))/(60*60));
$fullMinutes = floor(($diff-($fullDays*60*60*24)-($fullHours*60*60))/60);
$duration = $fullMinutes;
$query3=mysqli_query($con, "update attendance_records set Duration = '$duration' where OracleID='$session_id' and isdone='$isdone'")or die('Error In Session');
header('location:index.php');
}
* come to think of that again, i always get zero, is it because it never reaches days in my program! I am using this for attendance system so only hours and minutes are used. Please help. Edited March 13, 2020 by ramiwahdanthoughts After being forced to have the server upgraded I am having problems with my 'reset password' pages. What I wondered is, has there been any changes to PHP or MySQL between these versions ? The PHP version was 5.2.9 and is now 5.2.14 The MySQL version was Client API version 5.0.45 and is now Client API version 5.0.90 Some one clicks a link like this. www.site.com/resetpw.php?pwr=a1b2c3d4e5f6 the code would be a 32 char hash that is checked against the database, but my code now (which was never changed before or after the server change) seems to find the database line and update it but show the message that it was invalid ? instead of showing the the message, your password will be sent to you after changing the DB does anyone have any ideas ? Code: [Select] <?php include('includes/connection.php'); include('includes/functions.php'); date_default_timezone_set('Europe/London'); if(isset($_POST['reset']) && trim($_POST['reset']) == 'Reset') { $email = mysql_real_escape_string($_POST['email']); $checkVerify = mysql_query("SELECT account_id FROM customers WHERE email='$email' AND verified='No' LIMIT 1"); $checkBanned = mysql_query("SELECT account_id FROM customers WHERE email='$email' AND suspended='Yes' LIMIT 1"); if(!$email) { $thisError = 'Please enter your e-mail address.'; } else if(!$password) { $thisError = 'Please enter your password.'; } else if(mysql_num_rows($checkVerify)) { $thisError = 'Your account has not been approved by an Admin.'; } else if(mysql_num_rows($checkBanned)) { $thisError = 'Your account has been suspended by an Admin.'; } else { $password = md5($password); $checkAccount = mysql_query("SELECT account_id FROM customers WHERE email='$email' AND password='$password' LIMIT 1"); if(mysql_num_rows($checkAccount)) { $_SESSION['FM_user'] = $email; header('Location: members.php'); exit; } else { $thisError = 'Your e-mail address and/or password is incorrect.'; } } } include('includes/header.php'); ?> <body> <div class="headerBar"> <?php include('includes/navigation.php');?> </div> <?php headerText(); ?> <div class="content"> <div class="widthLimiter contentStyle"> <div class="formWrapper"> <?php if(isset($thisError)) { echo '<div class="errorDiv">',$thisError,'</div>'; } ?> <?php if(isset($thisSuccess)) { echo '<div class="successDiv">',$thisSuccess,'</div>'; } ?> <span class="subHeader">Initiate Password Reset</span> <?php // include("sendmail2010.php"); $securitycode = ($_GET['pwr']); //echo("53:security:".$securitycode.":<br>"); if ($securitycode != "") { $sql = "SELECT * FROM `customers` WHERE `changeofpasswordcode` = '".mysql_real_escape_string($securitycode)."' LIMIT 1"; //echo("54:sql:".$sql.":<br>"); $res = mysql_query($sql) or die(mysql_error()); //echo("57:<br>"); if (mysql_num_rows($res) != 0) { //echo("59:sql:".$sql.":<br>"); $customerName = mysql_result($res, 0 ,'fullname'); $email = mysql_result($res, 0 ,'email'); $yourpasswordtologin = CreateNewPassword(); $format = 'Y-m-d H:i:s'; $date = date( $format ); $sql = "UPDATE `customers` SET `password` = '" . md5($yourpasswordtologin) . "', `password2` = '" . mysql_real_escape_string($yourpasswordtologin) . "', `changeofpasswordcode` = '', `newpasswordrequestedon` = '" . $date . "' WHERE `changeofpasswordcode` = '" . mysql_real_escape_string($securitycode) . "' LIMIT 1"; //echo("65:sql:".$sql.":<br>"); $res = mysql_query($sql) or die(mysql_error()); $_SESSION['customerName'] = $customerName; $_SESSION['customerEmail'] = $email; $_SESSION['generatePass'] = $yourpasswordtologin; //echo("send email"); $sendemailnow = createEmailSend('newPassword', 'Your new password', 'customer'); //echo("email sent ".$sendemailnow); ?><div style="margin: 30px;">Thank you for completing your password reset process.<br><br>An email with a randomly generated password has been sent to your email address, please check your email account for this email as you will need this password to access your <?=$_SESSION['siteName'];?> account.<br><br><strong><em>Please check your 'spam folder' in case our emails are showing up there.</em></strong><br><br>You may now <a href="<?=$_SESSION['webAddress'];?>">sign in</a> to your account.</div><?php //echo("72:end of IF send email<br>"); } else { //echo("74 bad link<br>"); ?><div style="margin: 20px;">Sorry the link you clicked is and old password reset link or is not valid, please delete the email.<br><br>If you were trying to reset your password, please click the<br>'Member Login' link on our site and then click the 'Reset Password' link.</div><?php //echo("end of IF bad<br>"); } //echo("78:end of first IF<br>"); } ?> </div> </div> </div> <?php include('includes/footer.php');?> </body> </html> Hi All, I created a website which runs perfectly on one server but now I transferred the website to another server I get all kinds of errors like, Undefined variables and so on. How is this possible. I thought it was all in the code. Marco Hi, I'll be honest don't have a clue what I am doing but a friend asked me to look into her site, she gets the following error at the top of this page http://www.morairaluxuryvillas.com/rentals/villalist.php Warning: strpos() [function.strpos]: Offset not contained in string in /home/morairal/public_html/rentals/villalist.php on line 85 the code on the line 85 is: $secondfstemp = strpos($block1, ".", $firstfs); I am more than willing to look into but don't know where to start - anyone have any ideas? Thanks for your time:-) Can someone explain the difference between the following? function a(array $var) { } function a($var = array()) { } function a(Array $var) { } I have seen these recently in a script I am modifying, but not 100% sure as to what each one does. Well I know what the middle one does, but am a little confused on the 1st and 3rd one. Thanks! Dennis I don't know if this is the correct type of question to ask here - I built a sandbox about 3 months ago with the latest XAMPP. I know that it came with PHP 5.x [5.2 I think]. I am not at home right now to check it. I just found out that the host server is running 4.4.9. I have no control over the host, or host selection. I am going to attempt to get a database online using basic [I hope] PHP scripts to query the otherwise static database. Are there major differences in the versions that I need to watch out for? I realize that I will now have to get 4.4.9 installed on my sandbox. I plan on using Dreamweaver CS5 to get my pages built. The main site is built and managed by another person using Expression Web 2. I am also unaware if the master.dwt built in Expression can be somehow brought into my PHP for site consistency. I am open to all comments and suggestions. I have Win 7 home premium, Apache 2.2 (installed using the .msi) and PHP 5.2.14 (downloaded as "php-5.2.14-Win32-VC6-x86.zip", installed manually, it works) on both machines. The other is 32-bit and the other is 64-bit, both Windows 7 Home Premium. When I run the exactly same script on one machine, it does what it is supposed to (32-bit), but on the 64-bit it does not. Basically this appears in two situations (so far): I have a script that reads a (xml) file into a simplexml object, and if this is not successful, it prints an error message. On the 32-bit machine I can import (read) another xml file at once once the first one is processed (into a sqlite database), but on the 64-bit machine it gives me an error originating from the fact that the script did not manage to create the simplexml object. The other situation is when I want to open a specific PDF - file in a browser window (Firefox, the newest one, on the 32-bit machine, IE something newish on the 64-bit). The file exists, the path to the folder is in the Path environment variable, I can open it normally etc on the 64-bit machine, but when I click on a link that is supposed to open the file in a browser window I only get an error message saying that the file does not start with "%PDF.... Needless to say, the precisely same script works just fine on the 32 bit machine. $path_to_image="D:\\path_to_folder\\"; $file_name=$_GET['file_name']; header("Content-disposition: inline; filename=".$path_to_image.$file_name); header("Content-type: application/pdf"); readfile($path_to_image.$file_name); The above code is from the part that receives the file name from a form (other file). Anyone noticed anything like this? Any suggestions? Have been trying to figure this out for days, now... Oh, forgot: In both cases the thing is accessed as/from "localhost". |
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