The underscore before the Php constructor construct is a double underscore

When I write PHP classes recently, I always encounter the error of function nonobject. I know that the class is not instantiated, but I just don’t know where the error is.

Definition and usage

construct() function creates a newSimpleXMLElementobject.

If successful, the function returns an object. On failure, returns false.

Syntax

construct(data,options,is_url,ns,is_prefix)

Return value

Returns a SimpleXMLElement object representing the data.

Example

  George John Reminder Don't forget the meeting!  XML; $xml = new SimpleXMLElement($xmlstring); echo $xml->body[0]; ?>

Output similar to:

Don't forget the meeting! 后来看construct的前_是一个，我靠，上次也是这个错误，忘了，现在记着了 function construct() {} 不是 function _construct() {}

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