Overloading PHP Objects with Magic Functions

In PHP, objects are all dynamic. If you declare a variable for object after instantiation, it just throws it right in, no questions asked. Much friendlier than, say, Java, where you absolutely must define a variable prior to use or the JVM will smite you. PHP also lets you define extra or different instructions when using a previously unknown variable with magic functions (__set, __get, __call).

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