Call to a member function on a non-object
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Reference - What does this error mean in PHP?
34921
How do I use a class method as a callback function?
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How can I call a method in an object from outside the JVM?
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How do you pass a member function pointer?
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call function declared below
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Breaking at a member function in the Python debugger
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Why cannot a non-member function be used for overloading the assignment operator?
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In PHP, can you instantiate an object and call a method on the same line?
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Why Not Use Public Member Functions
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'int' object is not callable
94566
How to do a PHP nested class or nested methods?
58892
Can I use a variable to call a method?
120417
Function return object
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Casting a function pointer to another type
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Passing an instance method as argument in PHP
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Call to a member function prepare() on a non-object PHP Help
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Is it possible to call a non-exported function that resides in an exe?