PHP addslashes() Function

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Add a backslash in front of each double quote ("):

$str = addslashes('What does "yolo" mean?');

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Definition and Usage

The addslashes() function returns a string with backslashes in front of predefined characters.

The predefined characters are:

  • single quote (')
  • double quote (")
  • backslash (\)
  • NULL

Tip: This function can be used to prepare a string for storage in a database and database queries.

Note: PHP runs addslashes() on all GET, POST, and COOKIE data by default. Therefore you should not use addslashes() on strings that have already been escaped, this will cause double escaping. The function get_magic_quotes_gpc() can be used to check this.



Parameter Description
string Required. Specifies the string to be escaped

Technical Details

Return Value: Returns the escaped string
PHP Version: 4+

More Examples

Example 1

Add backslashes to the predefined characters in a string:

$str = "Who's Peter Griffin?";
echo $str . " This is not safe in a database query.<br>";
echo addslashes($str) . " This is safe in a database query.";

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