Are php method names case-insensitive?

In PHP, the method name refers to the function name defined in the class. Like variable names, there are certain rules for naming method names, but in PHP, method names, like class names, are usually case-insensitive.

This means that whether you use lowercase, uppercase, or mixed case letters, you will get the same result when calling the method. For example, if you define a method in a class named "testMethod()", then you can use "Testmethod()", "TestMethod()", "TEstmEthOd()" and so on in various different cases. Call it and PHP will recognize them as the same method name.

Similarly, PHP does not handle class names case-sensitively. When creating an object, you can use any case of the class name to instantiate the class. For example, if you use the following statement in your code to instantiate a class:

$myObject = new MyClass();

then when defining the class, you can use the following different classes Name method:

class MyClass { ... }
class myclass { ... }
class MYCLASS { ... }

The above three class name definition methods are all The class can be instantiated successfully.

Although PHP method names are not case-sensitive, when writing code, it is recommended to unify the naming of methods and class names according to certain specifications to improve the readability and maintainability of the code. Generally, it is more common to name methods and classes in camel case with the first letter capitalized. For example, you can name methods and classes using the following:

class ClassName {
public function methodName() {

//函数体

}
}

By unifying the naming of methods and class names according to certain standards, the code can be easily understood, maintained, and modified by other developers, and it can also help avoid errors caused by case distinctions when calling methods.

In short, in PHP, method names and class names are not case-sensitive, but when writing code, we still need to name methods and class names according to certain specifications to improve the readability and Maintainability.

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