stripslashes function usage

The stripslashes function is a PHP function used to remove backslash escaped characters from a string. In PHP, when we use backslash (\) to escape specific characters, sometimes we need to remove these escape characters from the string. In this case, we can use the stripslashes function.

For example, when we retrieve a string containing escape characters from the database, we can use the stripslashes function to remove the escape characters.

The basic usage of the stripslashes function is as follows:

string stripslashes(string $str)

Among them, $str is the string from which escape characters need to be removed.

Example:

$str = "He didn\'t say \"hello\"";
echo stripslashes($str);
// 输出：He didn't say "hello"

In this example, the original string contains some escape characters (' and "), using stripslashes After the function, these escape characters are removed, and only the original quote symbols are in the output string.

It should be noted that the stripslashes function will only remove specific escape characters, including single quotes, double quotes, backslashes and NUL(NULL character). If the string contains other types of escape characters, the stripslashes function will not strip them.

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