Update query in symfony

Suppose you want to execute query like
UPDATE tableName SET column1 = ‘abc’,column2 = ‘xyz’ WHERE column =’1′;
then you can use the below syntax to do so 🙂


$con = Propel::getConnection();

/* Here you have to set the condition for which you need to update */
$c1 = new Criteria();
$c1->add(TableNamePeer::COLUMN_NAME, $conditionForColumn1);

/* Here you have to set the column value */
$c2 = new Criteria();
$c2->add(TableNamePeer::COLUMN_TO_UPDATE, $value);

BasePeer::doUpdate($c1, $c2, $con);

How to set the meta tag information intemplate file in symfony

You can set the meta tag information in your template file as below.

sfContext::getInstance()->getResponse()->setTitle(‘Your meta title here’);
sfContext::getInstance()->getResponse()->addMeta(‘description’,’ Meta description information’);
sfContext::getInstance()->getResponse()->addMeta(‘keywords’,’meta tag keywords seperated by commas’);

That’s it.


How to convert bitmap image(.jpg , .jpeg, .gif, .png) to vector format (.ai , .eps, .svg)

For converting bitmap image to vector image you need to have autotrace library installed .

If you not installed you can install that bu using the command “yum install autotrace”.

Follow the instruction step till the installation is complete.

Once its installed you can use the below command to convert the image to vector format.

$ autotrace testInputImage.png -output-file testOutputImage.svg

Other example :

$autotrace –input-format=jpg –output-file=tshirt.ai –dpi=1024 –color-count=256 –despeckle-level=0 –despeckle-tightness=0 –corner-always-threshold=60 –line-threshold=0.1 –width-weight-factor=0.1 –line-reversion-threshold=0.1 –preserve-width –remove-adjacent-corners tshirt.ai 2>&1

and your are done.

For more information and option visit http://autotrace.sourceforge.net


GD support

How to check if GD support is enabled or not.


If GD support is enabled then you will get an array in that you will get “GD Version”.

If you didn’t get this that means GD support is not there .

To enable GD support you should install
GD library by the below command
“yum install php-gd” (Fedora Linux)
This will install GD support.

Now when you check the output of the above php code it will display the GD version

How to establish oracle database connection in php

First of all you need to check whether “oci8” support is enabled or not, if not you have to enable that you can check this in your phpinfo file.

Once this is done.

Now in you test.php file

You have to explicitly set the ORACLE_HOME and LD_LIBRARY_PATH path.
This information will be available in you phpinfo file.

The “$dbstr” variable information you can find it from your “tnsnames.ora” file .

Test.php start


if (!ini_get(‘display_errors’)) {
ini_set(‘display_errors’, 1);
PutEnv(“LD_LIBRARY_PATH=-Wl,-rpath,/usr/lib/oracle/xe/app/oracle/product/10.2.0/server//lib -L/usr/lib/oracle/xe/app/oracle/product/10.2.0/server//lib -lclntsh”);

$dbstr =”(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.XX)(PORT = 1521))

if(!@($conn = oci_connect(‘DBUSERNAME’,’DBPASSWORD’,$dbstr)))

echo “connected succesfully”;



How to import data into mysql db from sql file

Open your shell prompt

navigate to the mysql directory (default is /var/lib/mysql)
cd /pathToYourMysqlDirectory/

then type the below command

$ mysql -u mysqlUserName -p Password -h HostName DatabaseName < /loactionOfYourSqlFile/yourSqlFileName.sql

mysqlUserName = Mysql User Name
Password = Mysql User Password
HostName = Mysql Host Name (This could be local host or some remote IP where you want to import the database)
DatabaseName = Mysql Database Name
/loactionOfYourSqlFile/yourSqlFileName.sql = This is the location of your sql file

Note : This is work only in Linux system


check whether any of the checkbox are checked or not

function isChecked(url)
var checkFound = false;
for (var counter=0; counter < f.length; counter++)
if ((f.elements[counter].name == ‘checkBoxId[]’) && (f.elements[counter].checked == true))
checkFound = true;
if (checkFound != true)
alert(‘Please check at least one checkbox.’);
return false;
//do something