smoetimes i need to print out the month in integer value like (1,2,3,4,5,6,7,8,9,10,11,12) or print out it in string value like April , March ,.... etc . i made class convert_month to convert any month in integer to string value or any month string value to integer see my example below :
make month_convert.php page and copy the code below inside it then save the page
class convert_month {
/*author engineer sherif sakr ,
//email :xxsherif82@yahoo.com
*/
//data members
private $msg ;
private $month;
private $type ;
private $montharray=array(1=>'January',2=>'February',3=>'March',
4=>'April',5=>'May',6=>'June',
7=>'July',8=>'August',9=>'September',
10=>'October',11=>'November',12=>'December');
//constructor function
public function __construct($month_from_user) {
//intiate month value
$this->month=$month_from_user;
// check month value type if integer or sting
$type= $this->get_variable_type() ;
// *******convert the value type to its oppsite ************//
if($type=="integer") $this->month=$this->convert_to_string() ;
else if($type=="string") $this->month=$this->convert_to_integer() ;
//if value type not supported get the error message
else return $this->msg ;
}
//********************* get method *************//
public function get_month() {
if($this->month==''){
return $this->error_msg();
}
else return $this->month ;
}
//************get variable type method ***********//
private function get_variable_type() {
$this->type=gettype($this->month) ;
return $this->type ;
}
//********convert variable type to integer method *********//
private function convert_to_integer() {
foreach ($this->montharray as $key=> $value ) {
if( $this->month==$value )
{
return $this->month=$key ;
break ;
}
}
}
//******convert variable type to string method **************//
private function convert_to_string() {
foreach ($this->montharray as $key=> $value ) {
if( $this->month==$key )
{
return $this->month=$value ;
break ;
}
}
}
//**************error method *****************//
public function error_msg() {
return $this->msg="sorry data type not supported !!! ";
}
}
?>
make test.php page and put the code below and save the page then run test.php
require "month_convert.php" ;
$month =4 ; // or put $month = 'april ' as string
$month= new convert_month($month);
$monthx=$month->get_month() ;
echo $monthx ; // will print April
?>
that was just example of using OOP but we can do the same using small function
put the code below in the page test2.php and run it
//get_month function
function get_month($month) {
//check case sensitive letter if type is string
if(gettype($month=='string')){
//convert to lower string
$month=strtolower($month);
//UPERCASE FIRST LETER ONLY
$month=ucfirst($month);
}
$montharray=array(1=>'January',2=>'February',3=>'March',
4=>'April',5=>'May',6=>'June',
7=>'July',8=>'August',9=>'September',
10=>'October',11=>'November',12=>'December');
/*check month
//in_arry($month,array) function searches an array for a specific value,
// This function returns TRUE if the value is found in the array, or FALSE otherwise.
//The array_key_exists($month,array) function checks an array for a specified key,
// and returns true if the key exists and false is the key does not exist. */
if(in_array($month,$montharray)==true || array_key_exists($month,$montharray)){
foreach ($montharray as $key=> $value ) {
if( $month==$value )
{
// return month back in integer value
return $month=$key ;
break ;
}
else if ( $month==$key )
{
// return month back in string value
return $month=$value ;
break ;
}
} // end forech
}
// return month back as messaage error with out
else return $month="not supported data" ;
} // end function
//test month
$month=3 ;
$month=get_month($month);
echo $month ; // print out March
?>
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