php

How to destroy the php session with one button

I'd like to make a simple form button which completely destroys the session when you click on it. I am just starting to use PHP for the first time, and do not see how I implement it into my HTML code. What I'd like is simply a form button which will clear the session (and possibly an explanation as to how it works) ...

How do I pull information from URL in PHP?

Lets say the url is http://example.com/product/3 and I only want to retrieve what is after http://example.com/product/. I found this, it echos the domain but how do I get the three. Its this method reliable? I'm using codeIgniter also. <?php function curPageURL() { $pageURL = 'http'; $pageURL .= "://"; if ($_SERVER["SERVER_PORT"] != "80...

PHP PCRE replace markup style

Hi, I need a PCRE expresssion (regex) to match and replace a certain attribute and value related to a markup element, something like this : <div style="width:200px;"></div> into <div style="width:100px;"></div> What I have now, parsed by simplehtmldom is the style content in plain text, like this : width:200px; How can I match ...

Error when using array_filter with static functions in class

i have a class like this class im_a_class { static function not_empty() {...} function render() { return array_filter($array,'self::not_empty') }; } this code works in php 5.3.0 but doesn't work in version 5.2.8. i had to put it out and use it like this function not_empty() {...} class im_a_class { function render() { return...

Searching Database PHP/MYSQL Question

Right now I'm just using a simple WHERE name LIKE '%$ser%' But I'm running into an issue - say the search is Testing 123 and the "name" is Testing, it's not coming back with any results. Know any way to fix it? Am I doing something wrong? ...

PHP file reading, searching and looping problems

Hello, So i've been trying to write this little piece of code to read a file (status.txt), search it for 1 of 4 keywords and loop until either time runs out (5 minutes) or it finds one of the words. I've already written a few simple php scripts to write the words to a txt file, but I can't seem to get this part to work. It either does...

Reading UTF-8 data from MySQL shows ? insted of ı

Here is how I read the data: <?php $id = $_GET["id"]; $number = mysql_real_escape_string($id); $result = mysql_query('SELECT * FROM `mystory` where `id` = ' . "$number" . ' LIMIT 1'); $row = mysql_fetch_assoc($result); echo $row['story']; ?> The data is encoded as utf8_bin. Insted of ı PHP outputs ? Why is that? What I'm doing wrong...

PHP vs. Other Languages in Hadoop/MapReduce implementations, and in the Cloud generally.

I'm beginning to learn some Hadoop/MapReduce, coming mostly from a PHP background, with a little bit of Java and Python. But, it seems like most implementations of MapReduce out there are in Java, Ruby, C++ or Python. I've looked, and it looks like there are some Hadoop/MapReduce in PHP, but the overwhelming body of the literature se...

PHP openssl equivalents for Perl ?

What would be a equivalent example in perl of the bellow code to create a Self-signed certificate ? All i have available is Crypt::OpenSSL::RSA (if there is another module let me know so i can verify it is available or possible to install as i am not the admin/owner and cannot do it myself due to rights issue) which i havent found on th...

functions file, plugin, and theme scoping in wordpress mu

I've got a plugin that is declared and hooked following best practices described in this related question: http://stackoverflow.com/questions/1615118/wordpress-accessing-a-plugins-function-from-a-theme So it looks (platonically) like this: if ( !class_exists( 'Foo' ) ) { class Foo { ... public function do_stuff() { //...

database updates not showing up immediately

hi, i have a php application driven by mysql data. ie. when a user rates on a product .it gets stored in DB and the page gets refreshed. then also his ratings donot get showed up until cache is cleared. i have put the cache control code also . header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1 header("Expires: Sat, 26 J...

Documenting PHP Code - does it hurt performance?

I can't believe anyone would normally object to documentation and comments, but whats the best practice (and practical) for doing so in PHP? In JavaScript, you can document your code and then run a minimizer to produce a production version of your code for use. What about in PHP, does the extra lines of text affect performance? Should y...

PHP MYSQL if null statement.

I need a way to do this, If a mysql query dosn't retrieve any data, something happens. Here's an example. $color="red"; $query = mysql_query("SELECT * FROM people WHERE shirt='$color'"); if($query = null){ echo 'No people wearing '.$color' shirts available.'; } ...

Convert C# code to PHP

private static readonly byte[] IV = new byte[8] { 240, 3, 45, 29, 0, 76, 173, 59 }; public string Decrypt(string encryptedData,string key) { encryptedData = HttpUtility.UrlDecode(encryptedData); byte[] buf = Convert.FromBase64String(encryptedData); TripleDESCryptoServiceProvider des = new TripleDESCryptoServiceProvider(); ...

Need help with really simple regular expression

I am using PHP to match the following data type : [["1200","135"],["127","13"]] I want to extract all the numbers into a seperate array of arrays like this : array(array(1200,135),array(127,13)); I am using preg_match to capture the elements but so far i am not even able to match them against a rule. I will gladly appreciate if som...

How to distinguish/identify users with OpenID without requesting SReg fields?

I've been toying with the JanRain OpenID PHP Library, mostly following along with a tutorial I found on ZendZone. How does one distinguish between users - especially Google users, who all end up using the same OpenID URL, https://www.google.com/accounts/o8/id ? Basically, I'm at the point where I can detect that they have an OpenID acc...

100% safe photo upload script

Question is simple. How can I make 100% safe photo upload script with php? Is there any tutorials which shows all possible safeness's gaps? Do not offer me to look this question http://stackoverflow.com/questions/786507/uploading-photos-how-can-i-keep-our-website-safe-stable, because there they talk only about size. But I want to be sur...

PHP: populating a nested array from flat scalar values

PROBLEM I have a nested PHP array that I need to populate from flat scalar values. The problem is I cannot know ahead of time what the structure of the nested PHP array will be until I get the request to fill in the flat scalar values. EXAMPLE // example where we populate the array using standard PHP $person['contact_info']['fname']...

Double forward slash in a string using stripos() will not match a string even if it is present?

I ran into a little problem today when I was creating a really quick script to scan lines files in a user specified directory for //todo:... So I had a line like this: if (stripos($data, '//todo:')) { //case-insensitive search ^^ //deal with the data appropriately } This did not find //todo: anywhere in any of the files! This was ...

Parsing input to see whether it's an address, zip code, city or state?

I have a job board where a user submits his location, via Google-Maps API, which plots the job on a map. The problem is, because it is a location based job board, I want to make the most broad input allowable a ZIP code (so users can either enter a ZIP code or address). Is there anyway to either parse the input to determine whether it'...