mb_http_input - PHP code example

PHP Function mb_http_Input

PHP provides a number of built-in functions to perform specific tasks. A function is a block of code that can be called directly within a script to perform its task. A function may take any number of arguments and return a value. Functions may also take a parameter as the first argument, which will be set by the function caller. A function can be called in a PHP file by calling the function name followed by the open ( ) and close curly braces. A function return statement is optional, however PHP 7 supports the use of a return type declaration that specifies what type to return. This will prevent the function from throwing a fatal error if the returned value is not of the correct type, and it can be used to enforce a strict type-checking on function calls.

mb_http_input is a function that enables HTTP input/output character encoding conversion in PHP. The function requires mbstring extension to be enabled in your web server and the configuration option --enable-mbstring to be specified. mbstring extension provides support for Simplified Chinese, Traditional Chinese, Korean, Russian and Japanese character encodings. You can enable mbstring with the configure option --with-mbstring[=LANG]: --enable-mbstring=cn, --enable-mbstring=tw, --enable-mbstring=kr, --enable-mbstring=ru, and --enable-mbstring=ja.

The mb_http_input function is EXPERIMENTAL and its behaviour, including but not limited to the parameters of this function, can change in future versions of PHP WITHOUT NOTICE. You should always use it with care and with your own tests to make sure you get the expected behaviour.

mb_http_input example

if (!function_exists('mb_strwidth')) {
    function mb_strwidth($string, $encoding = null) { return p\Mbstring::mb_strwidth($string, $encoding); }
}
if (!function_exists('mb_substr_count')) {
    function mb_substr_count($haystack, $needle, $encoding = null) { return p\Mbstring::mb_substr_count($haystack, $needle, $encoding); }
}
if (!function_exists('mb_output_handler')) {
    function mb_output_handler($string, $status) { return p\Mbstring::mb_output_handler($string, $status); }
}
if (!function_exists('mb_http_input')) {
    function mb_http_input($type = null) { return p\Mbstring::mb_http_input($type); }
}

if (!function_exists('mb_convert_variables')) {
    function mb_convert_variables($to_encoding, $from_encoding, &...$vars) { return p\Mbstring::mb_convert_variables($to_encoding, $from_encoding, ...$vars); }
}

if (!function_exists('mb_ord')) {
    function mb_ord($string, $encoding = null) { return p\Mbstring::mb_ord($string, $encoding); }
}
if (!function_exists('mb_chr')) {
    function mb_chr($codepoint, $encoding = null) { return p\Mbstring::mb_chr($codepoint, $encoding); }
}

if (!function_exists('mb_strwidth')) {
    function mb_strwidth(?string $string, ?string $encoding = null): int { return p\Mbstring::mb_strwidth((string) $string, $encoding); }
}
if (!function_exists('mb_substr_count')) {
    function mb_substr_count(?string $haystack, ?string $needle, ?string $encoding = null): int { return p\Mbstring::mb_substr_count((string) $haystack, (string) $needle, $encoding); }
}
if (!function_exists('mb_output_handler')) {
    function mb_output_handler(?string $string, ?int $status): string { return p\Mbstring::mb_output_handler((string) $string, (int) $status); }
}
if (!function_exists('mb_http_input')) {
    function mb_http_input(?string $type = null): array|string|false { return p\Mbstring::mb_http_input($type); }
}

if (!function_exists('mb_convert_variables')) {
    function mb_convert_variables(?string $to_encoding, array|string|null $from_encoding, mixed &$var, mixed &...$vars): string|false { return p\Mbstring::mb_convert_variables((string) $to_encoding, $from_encoding ?? '', $var, ...$vars); }
}

if (!function_exists('mb_ord')) {
    function mb_ord(?string $string, ?string $encoding = null): int|false { return p\Mbstring::mb_ord((string) $string, $encoding); }
}
if (!function_exists('mb_chr')) {
    function mb_chr(?int $codepoint, ?string $encoding = null): string|false { return p\Mbstring::mb_chr((int) $codepoint, $encoding); }
}