PHP Queries

PHP exe Calling

2012-08-23T09:41:00.000-07:00

Steps to Call exe file through php application:

Step 1: exec("path");
eg: exec("c:/windows/system32/calc.exe");

Step 2: Goto Start Run -- services.msc

Step 3: If you are running Wamp server -- search "wamppapache server" on services.msc popup window.
then right click and select properties -- goto "log on" Tab.

Step 4: Check them allow services to interact with desktop then apply them.

Step 5: If all these steps are completed, then goto wamp server control panel and restart the services.

Step 6: Finally all the steps are done, run the script.

PHP Language Detection

2012-08-13T09:28:00.000-07:00

The PHP Code

This code simply detects what language header is set (if there is one) and redirects the user to the relevant subdomain. English speaking users get re-directed to en.mysite.com etc. In the variable $site we’re building an array of all the languages and subdomains supported. This means that down the line if you want to add more support for different languages for instance German ‘de’ you could just append a value and key to the $sites array.
the $lang variable takes our PHP superglobal ‘HTTP_ACCEPT_LANGUAGE’ and you’ll notice that this is wrapped in the PHP function substr(); which takes 3 parameters. The string, which in our case is $_SERVER['HTTP_ACCEPT_LANGUAGE']; we then specify the start and the length values. So as we want to return and match just the first two characters of the string we specify 0,2.
The next section of code is an if statement that basically says if the language code doesn’t exist in the array then we either don’t support that language or a language code wasn’t set so it defaults to ‘en’.

<?php // List of available localised versions as 'lang code' =--> 'url' map

$sites = array(

"en" => "http://en.mysite.com/",

"es" => "http://es.mysite.com/",

"fr" => "http://fr.mysite.com/",

);

// Get 2 char lang code

$lang = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2);

// Set default language if a '$lang' version of site is not available

if (!in_array($lang, array_keys($sites))){

$lang = 'en';

}

// Finally redirect to desired location

header('Location: ' . $sites[$lang]);

?>

2012-08-13T09:02:00.001-07:00

How To Install Cake php :

1. Download the Cake Zip file from http://cakephp.org

2. Extract the Zip folder and put it into Xampp/htdocs folder

3. Run the file , then pages should like this

4. After change run this page then page should like this

5. Now page should like this

6. 7. Now open app\config\database.php for will give database detail

8.

9.

10.

PHP - Decrypt

2012-08-13T08:19:00.002-07:00

Decrypt in Php - sample script

function hex2bin($val)
{
$len = strlen($val);
return pack("H" . $len, $val);
}

$key = "keyvalue";
$iv = "testvalue";

$decryptedVal=mcrypt_cbc(MCRYPT_3DES, $key, hex2bin($encryptedVal), MCRYPT_DECRYPT, $iv);

PHP - Encrypt

2012-08-13T08:16:00.001-07:00

Encryprt in php sample script

ini_set('display_errors', 1);
error_reporting(E_ALL);

// I blantantly stole, tweaked and happily used this code from:
// Lord of Ports http://www.experts-exchange.com/M_1736399.html

$ky = 'lkirwf897+22#bbtrm8814z5qq=498j5'; // 32 * 8 = 256 bit key
$iv = '741952hheeyy66#cs!9hjv887mxx7@8y'; // 32 * 8 = 256 bit iv

$text = "Here is my data to encrypt!!!";

$from_vb = "QBlgcQ2+v3wd8RLjhtu07ZBd8aQWjPMfTc/73TPzlyA=";   // enter value from vb.net app here to test

$etext = encryptRJ256($ky, $iv, $text);
$dtext = decryptRJ256($ky, $iv, $etext);
$vtext = decryptRJ256($ky, $iv, $from_vb);

echo "<HR>orignal string: $text";
echo "<HR>encrypted in php: $etext";
echo "<HR>decrypted in php: $dtext";
echo "<HR>encrypted in vb: $from_vb";
echo "<HR>from vb decrypted in php: $vtext";
echo "<HR>If you like it say thanks! richard dot varno at gmail dot com";

exit;

function decryptRJ256($key,$iv,$string_to_decrypt)
{
    $string_to_decrypt = base64_decode($string_to_decrypt);
    $rtn = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $string_to_decrypt, MCRYPT_MODE_CBC, $iv);
    $rtn = rtrim($rtn, "\0\4");
    return($rtn);
}

function encryptRJ256($key,$iv,$string_to_encrypt)
{
    $rtn = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $string_to_encrypt, MCRYPT_MODE_CBC, $iv);
    $rtn = base64_encode($rtn);
    return($rtn);
}