An example of PHP @ at sign action, at example _php Tutorial

An example of the role of PHP @ at notation, at example

Look at the PHP code, there are always some lines in front of the @ symbol, always do not know what the meaning. For example dede5.7 @ni =imagecreatetruecolor (Ftow, $ftoH);

If you use it today, just remember it. In fact, it is the error control, that is, even if an error occurs, ignore the error message, continue to execute the code below.

@ $page =$_get[' page ']?intval ($_get[' page '): 1;

This is the value from the URL to get the page keyword, such as "index.php?page=5", then the $page will be taken to 5.

But if there is an error, such as "index.php" after the page keyword, if you go to fetch $_get[' page ' does not exist will be an error, then there is @ can ignore this small error.

Another example:

$conn = Mysqli_conncet ("Q", "W", "E", "R");

This will enter an error message about connecting to the database.

If the $conn is preceded by the @, you can not let him output the error message.

@ $conn = Mysqli_conncet ("Q", "W", "E", "R");

Here's a little bit of a note.

PHP Tagging issues

Short_open_tag = On
That's right. You need to remove the semicolon at the beginning of the line. The semicolon means, "this line is a comment, it doesn't work."
How can not output Apcha all have the boot path set all right
If you use it, you can output
Of course it is. If your short mark is not open, then only the content will be displayed.
Remember to use

The role of this symbol ^ in PHP and how to use it

^ is a starting match tag in PHP regular

$preg = '/^a/';//matches a character starting with a

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