What is the principle of _ autoload? listen & nbsp; say it is automatic loading. do you mean it is to load all the files in the same directory of _ autoload. It seems like this, but it is vague to read a lot of materials that are not clearly written ., When you instantiate a class, if the file is not loaded, the _ auto _ autoload principle is automatically triggered.
It indicates automatic loading. does it mean loading all the files in the same directory as the write _ autoload file. It seems like this, but it is vague to read a lot of materials that are not clearly written.
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When you instantiate a class, if this file is not loaded, the _ autoload ($ classname) method will be automatically triggered and the class will be loaded in the _ autoload () method.
In the method, you need to include the address of the file where this class is located.
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