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@tbcorr
Last active September 24, 2015 16:04
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Lazy Instantiation
<?php
class LazyInstantiation {
// we can only access this static property
// through the public static getter since
// the property is private
private static $expensive_to_compute;
// public static getter
public static function get_expensive_to_compute(){
if( self::$expensive_to_compute === null ){ // or empty()
// only instantiate once
self::$expensive_to_compute = some_function_that_is_expensive();
}
return self::$expensive_to_compute;
}
}
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