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Reference — What does this symbol mean in PHP?

What is this?

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.

Why is this?

It used to be hard to find questions about operators and other syntax tokens.¹
The main idea is to have links to existing questions on Stack Overflow, so it's easier for us to reference them, not to copy over content from …

php arguments symbols operators

4314
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21
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PHP中的@符号有什么用?

我见过@某些功能的使用,如下所示:

$fileHandle = @fopen($fileName, $writeAttributes);
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这个符号有什么用?

php error-suppression operators

557
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8
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22万
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为什么在PHP中使用@ before变量?

可能重复:
PHP中的@符号有什么用?
参考 - 这个符号在PHP中意味着什么?

用什么 <?php echo @$fnameerror; ?>意思.为什么在php中使用@之前的变量

php

19
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4
解决办法
4万
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