相关疑难解决方法(0)

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This is a collection of questions that come up every now and then about syntax in PHP. This is also a Community Wiki, so everyone is invited to participate in maintaining this list.

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It used to be hard to find questions about operators and other syntax tokens.¹
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我见过@某些功能的使用,如下所示:

$fileHandle = @fopen($fileName, $writeAttributes);

这个符号有什么用？

php echo以"@"符号开头显示变量,

例:

<?php echo @$user_profile['id'];?>

为什么在这里使用@符号？