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PHP - Alternatives To $_globals
Sometimes I have various data which I wish to be available to all scripts. Typically, they are constants which are related, and using PHP's constants makes them difficult to group.
As such, my solution has been to create a single global variable such as $GLOBALS['myGlobalVariable'], and dump them all in it.
Are there better ways to implement this? For instance, using a singleton? Please provide rational why one solution is better than the other.
Thank you
<?php
class mySinglton {
private static $instance = NULL;
private function __construct() {}
private function __clone(){}
public static function mySinglton($values=null)
{
if (!self::$instance)
{
self::$instance = new stdClass();
foreach ($values as $key=>$value) {
self::$instance->$key=$value;
}
}
return self::$instance;
}
}
class someClass
{
public $a=1,$b=2,$c=3;
}
$globals=array(
'foo'=>'bar',
'daysOfWeek'=>array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'),
'someClass'=>new someClass
);
$GLOBALS['myGlobalVariable']=$globals;
mySinglton::mySinglton($globals);
testIt();
function testIt()
{
echo('<pre>'.print_r($GLOBALS['myGlobalVariable'],1).'</pre>');
echo('<pre>'.print_r($GLOBALS['myGlobalVariable']['foo'],1).'</pre>');
echo('<pre>'.print_r(mySinglton::mySinglton(),1).'</pre>');
echo('<pre>'.print_r(mySinglton::mySinglton()->foo,1).'</pre>');
}
?>
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