Here is the code:
class Crud {
public static function get($id);
echo "select * from ".self::$table." where id=$id";// here is the problem
}
class Player extends Crud {
public static $table="user"
}
Player::get(1);
I could use Player::$table, but Crud will be inherited in many classes.
Any idea ?
To refer to static members in PHP there are two keywords :
self for "static" binding (the class where it is used)
static for "dynamic"/late static binding (the "leaf" class)
In your case you want to use static::$table
You want to use static:
<?php
class Crud {
public static $table="crud";
public static function test() {
print "Self: ".self::$table."\n";
print "Static: ".static::$table."\n";
}
}
class Player extends Crud {
public static $table="user";
}
Player::test();
$ php x.php
Self: crud
Static: user
Some explanation from the documentation: http://php.net/manual/en/language.oop5.late-static-bindings.php
"Late binding" comes from the fact that static:: will not be resolved using the class where the method is defined but it will rather be computed using runtime information. It was also called a "static binding" as it can be used for (but is not limited to) static method calls.
