Difference between revisions of "ObjectsAndRefs"
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| − | <tr><td colspan="2"> | + | <tr><td colspan="2">The above code creates a new class, SimpleClass, with no properties or methods. It then creates a new instance of this class and attaches it to the variable named '$instance'. Because objects are "special" <ref>Sara Golemon, "You're Being Lied To" [http://blog.golemon.com/2007/01/youre-being-lied-to.html]</ref> in PHP5, the relationship between the variable '$instance' and the object inside it is not as direct as you might be expecting...</td></tr> |
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Revision as of 21:43, 26 July 2011
This page attempts to provide a visual guide to how objects - and references to them - work in PHP 5.0 and later.
| class SimpleClass { } $instance = new SimpleClass(); |
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| The above code creates a new class, SimpleClass, with no properties or methods. It then creates a new instance of this class and attaches it to the variable named '$instance'. Because objects are "special" [1] in PHP5, the relationship between the variable '$instance' and the object inside it is not as direct as you might be expecting... | |
| $assigned = $instance; |  |
| Explain the code here | |
| $instance->var = '$assigned will have this value as well'; |  |
| Explain the code here | |
| $reference =& $instance; |  |
| Explain the code here | |
| $instance = null; |  |
| Explain the code here | |
