What does addcslashes() do in PHP?

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jack asked 5 years ago

What does addcslashes() do in php?

What does addcslashes() do in PHP? was last modified: March 19th, 2023 by jack
1 Answers
Best Answer
Maximus Mccullough Staff answered 1 year ago

The addcslashes() function in PHP adds backslashes to specified characters in a string. Here’s the basic syntax of the addcslashes() function:

addcslashes(string $string, string $charlist): string

The first argument, $string, is the string to be modified. The second argument, $charlist, is a string containing the characters that should be escaped with backslashes. The function returns the modified string. For example, if you want to escape all occurrences of the characters \ (backslash), ‘ (single quote), and ” (double quote) in a string, you can use addcslashes() like this:

$string = "This is a string with 'single quotes' and \"double quotes\".";
$escaped_string = addcslashes($string, '\'"');
echo $escaped_string;

The output of this code would be:

This is a string with \'single quotes\' and \"double quotes\".

As you can see, addcslashes() has added backslashes to all occurrences of the characters \, ‘, and ” in the string. This function can be useful when you need to escape certain characters in a string to prevent them from causing problems in contexts like SQL queries, HTML output, or command-line arguments.

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Answer for What does addcslashes() do in PHP? was last modified: March 19th, 2023 by Maximus Mccullough