Choose your database:
AnySQL
MySQL
MS SQL Server
PostgreSQL
SQLite
Firebird
Oracle
SQL Anywhere
DB2
MaxDB

Subscribe to our news:
Partners
Testimonials
Craig Cordell: "The simplicity of your code generator is fantastic. We've evaluated dozens of others over the past few years but have yet to find one that is as easy to use as yours".
Gabriela Arsene: "MySQL PHP Generator is really excellent! A very useful, easy to use tool and above all it is free, saving a lot of time and money to a developer! Great job! Congratulations to all the people who work at this project".

More

Add your opinion

Customers
Download Buy

PHP Generator for MySQL online Help

Prev Return to chapter overview Next

Session methods

The following methods can be used to handle session variables.

 

Signature

Description

IsSessionVariableSet($name)

Checks if the given variable exists in the session.

GetSessionVariable($name)

Returns the value of the given session variable.

SetSessionVariable($name, $value)

Sets a value to a session variable.

UnSetSessionVariable($name)

Removes the given variable from the session.

 

The code in the examples below is used in the OnPreparePage event handler:

 

Example 1:

The following code is used to filter countries by life expectancy:

 

// default values

$minLifeExpectancy = 40;

$maxLifeExpectancy = 90;

 

// checking values in the browser address line 

if (GetApplication()->isGetValueSet('minLifeExpectancy') &&

       GetApplication()->isGetValueSet('maxLifeExpectancy')) {

    $minLifeExpectancy = GetApplication()->GetGETValue('minLifeExpectancy');

    $maxLifeExpectancy = GetApplication()->GetGETValue('maxLifeExpectancy');

 

}  // or (if not found) in the session

elseif (GetApplication()->IsSessionVariableSet('minLifeExpectancy') && 

          GetApplication()->IsSessionVariableSet('maxLifeExpectancy')) {

    $minLifeExpectancy = GetApplication()->GetSessionVariable('minLifeExpectancy');

    $maxLifeExpectancy = GetApplication()->GetSessionVariable('maxLifeExpectancy');

}

 

// applying filter to the dataset

$this->dataset->AddCustomCondition(

    "life_expectancy >= {$minLifeExpectancy} ".

    "AND life_expectancy <= {$maxLifeExpectancy}");

 

// saving calculated values to the session

GetApplication()->SetSessionVariable('minLifeExpectancy', $minLifeExpectancy);

GetApplication()->SetSessionVariable('maxLifeExpectancy', $maxLifeExpectancy);

 

Example 2:

The code below removes the 'minLifeExpectancy' and 'maxLifeExpectancy' variables from the session if the 'resetLifeExpectancyFilter' variable is specified in $_GET.

 

if (GetApplication()->IsGetValueSet('resetLifeExpectancyFilter')) {

  GetApplication()->UnSetSessionVariable('minLifeExpectancy');

  GetApplication()->UnSetSessionVariable('maxLifeExpectancy');

}

 



Prev Return to chapter overview Next