@ symbol before php function

 

This question already has an answer here:

  • What is the use of the @ symbol in PHP? 10 answers
  • Reference — What does this symbol mean in PHP? 18 answers

    • 这是错误抑制运算符，通常不是一个好主意，因为您应该干净地捕获错误，而不是简单地隐藏它们

    It will silent error messages. See http://php.net/manual/en/language.operators.errorcontrol.php

    It means that if an error is generated by that function, it is not shown. It suppresses the error so to say. As the PHP manual states:

    PHP supports one error control operator: the at sign (@). When prepended to an expression in PHP, any error messages that might be generated by that expression will be ignored.

    Look here for more information: http://php.net/manual/en/language.operators.errorcontrol.php

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