A few questions about php Basics but not found in the book I saw some code in many frameworks with two underscores in front, for example, & nbsp ;__ isset, & nbsp ;__ construct, etc, can I add two underscores before a UDF? What is the role of the two underlines? Another method is & nbsp; _ e & nbsp;. What is this ?? These are a few php basics that are not found in the book.
In many frameworks, some codes are prefixed with two underscores (_ isset, _ construct). can I add two underscores (_ construct) before a UDF? What is the role of the two underlines?
Another method is _ e. What is this ??
These are not in basic programming, right? I have never seen it in the basic tutorial ??
How can you teach me?
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Search: php magic
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The addition of underscores does not actually affect beginners, but does not allow them to be named like this to avoid conflicts with their own methods.
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The above two are magic methods, and the following one should be Framework-defined methods.
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