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When the excel reader is run on PHP 5.3, below mentioned deprecated warning messages gets shown.

i) Assigning the return value of new by reference is deprecated

Remove & from the line below

$this->_ole =& new OLERead();

and have

$this->_ole = new OLERead();

instead.

ii) Function split() is deprecated

Function split() is deprecated and we can use explode() instead of that.

$parts = split(“;”,$format);

change it to

$parts = explode(“;”,$format);

If you think, that you will need the necessary feature to upload large files then there are two ways by which you can enable this feature.

i) Edit the physical file and have the line
ini_set(“memory_limit”,”20M”);

ii) Edit php.ini and add the following line. You need to restart the apache/IIS server once php.ini file is modified.
memory_limit=32M

BOM stands for Byte Order Mark (also known as ZERO WIDTH NON-BREAKING SPACE) appearing at the beginning of a data stream to define the byte order (whether it is little endian or big endian). BOM is to indicate that the file is Unicode based.

Possible problem caused by Byte Order Mark
In IE6, it will send the dispaly into quirks mode with its presence before “<DOCTYPE …”

How to check the presence of BOM?
View the source code of the page that does not display correctly in a user agent. Or, open the file in the editor which does not support UTF encoding to see the BOM’s signature on the files.

Suggestion
If the user-agent gives problem when you program for multi-lingual websites, check the editor settings to see what format is being used for saving program files. Notepad++ has the option to convert files to UTF and to UTF without BOM. Use the appropriate settings to convert your files.

A character set related tutorial on W3C site can be found here

Byte Order Mark on Wiki

Article on PHP and UTF

<?php
// PHP 5 how to pass data as a query string
/*
http_build_query is a function in PHP 5 that enables you to URL encode the query string. You can pass an array or an array of array to this function. The default separator is "&"
*/

$data = array("first_name" => "Robert",
                "last_name" => "Brown",
                "address" => "123 Adam St., New York"
            );

// URI formatted with character encoding
$pass_string = "http://localhost/demo.php?".http_build_query($data, '');

echo "<h2>Query URI (using http_build_query)</h2><br />";
echo $pass_string;
?>

Ouput from the above execution:
Query URI (using http_build_query)

http://localhost/demo.php?first_name=Robert&last_name=Brown&address=123+Adam+St.%2C+New+York

In order to test the posted data, we can create a file creation steps to ensure that we receive the posted data via the $_POST array

<?php
/*
  File name: postdata2.php
*/
    $xmlFile = "xmlFile.txt";
    $fh = fopen($xmlFile, 'w') or die("Cannot open file");
    fwrite($fh, $_POST["xmldata"]);
    fclose($fh);

?>

error_reporting = E_ALL & ~E_DEPRECATED

This is the setting for the production environment where you would not like to display the deprecated function related errors.

Sample error message
Assigning the return value of new by reference is deprecated in nusoap.php on line 7381

You can either write separate controllers and have each controller call a model based on table: users to validate each input field or use the same user model to carry out different validations which sounds logical.

It is easy to carry out different validations in a cakephp model by using the Multi-validatable Behavior by having different validation sets for different testing conditions.

Key things to note here …

i) Download the code for Multivalidatable Behavior and have it placed under /models/behaviors/ folder

ii) In the model where you want to have multi validation, you need to include multivalidatable behavior like
var $actsAs = array(“Multivalidatable”);

iii) Add validation rulesets array like
var $validationSets = array(‘login’ => array(‘name’=>array(‘rule’=>’alphanumeric’)),
‘changepassword’ => array(‘password’=>array(‘rule’=>’notEmpty’))
);

iv) In the controller where you want to apply the validation rule set, you need to add the respective validation like

function login(){
$this->User->setValidation(‘login’);
}

function changepassword(){
$this->User->setValidation(‘changepassword’);
}

For more info visit CakePHP Bakery

Using a text editor create a file called php.ini. This will be our first step.

Next, we need to add the following line of code in php.ini
register_globals = off

Upload php.ini file to the root folder where your application resides.

i) use is_uploaded() function to check if the file is uploaded before moving the file from temporary location

ii) sanitize the name of the file before moving the file from the temporary location by executing the ‘mv’ system command (use escapeshellargs, escapeshellcmd as needed)

iii) chmod the file setting to 644 if needed

iv) the directory from where the file will be moved and the destination directory should be initialized beforehand in order to prevent users from altering the path where the files could be stored