The mb_http_input() function in PHP is used to detect the HTTP (Hyper-text transfer protocols) input character encoding. This function is supported in PHP 5.4 or higher version.Syntaxarray|string mb_http_input(str $type=null)Parametersmb_http_input() accepts only a single parameter −$type − In the type parameter, the input string specifies the input type, like −G is used for GET, P is used for POST, C is used for COOKIE, S is used for STRING, L is used for LIST, andI for the whole list (it will return array).If the type is omitted, then it returns the last input type processed.Return Valuesmb_http_input() returns the character encoding name ... Read More

The mb_get_info() function in PHP is used to get the internal settings of mbstring. This function is supported in PHP 5.4 or higher version.Syntaxarray|string|int mb_get_info(str $type = "all")ParametersIt accepts only a single parameter to get the multibyte information.$type − If the type parameter is not specified or it is specified as "all", then it will return the following information −"internal_encoding", "http_input", "http_output", "http_output_conv_mimetypes", "mail_charset", "mail_header_encoding", "mail_body_encoding", "illegal_chars", "encoding_translation", "language", "detect_order", "substitute_character", "strict_detection" If the type parameter is specified as any of the following −"internal_encoding", "http_input", "http_output", "http_output_conv_mimetypes", "mail_charset", "mail_header_encoding", "mail_body_encoding", "illegal_chars", "encoding_translation", "language", "detect_order", "substitute_character" or "strict_detection", then it will ... Read More

In PHP, mb_eregi_replace() is used to replace a regular expression with a multibyte support, ignoring case. This function will scan the string for matches to the pattern, then it will replace the matched text with the replacement. This function is supported in PHP 4.2 or higher version.Syntaxstring mb_eregi_replace(str $pattern, str $replacement, str $string, str $options)Parametersmb_eregi_replace() accepts the following four parameters −$pattern − This parameter is used for the regular expression pattern and it may be used multibyte characters. The case will be ignored.$replacement − This parameter is used for text replacement.$string − The string parameter is used to search the ... Read More

In PHP, mb_ereg_replace() is used to replace a regular expression with a multibyte support. It scans the string for matches to pattern, then it replaces the matched text with the replacement.Syntaxstring mb_ereg_replace(str $pattern, $str $replacement, str $string, str $options)ParametersThe function accepts the following four parameters −$pattern − This parameter is used for the regular expression pattern. It may use multibyte characters in a pattern.$replacement − This replacement parameter is used to replace the given text.$string − This parameter is used to check the string.$options − This parameter is used to check the search option.Return Valuesmb_ereg_replace() returns success for the resultant ... Read More

In PHP, mb_ereg_replace_callback() function is used to perform a regular expression search and replace it with a multibyte support using a callback. It will scan the strings and match them with a pattern, then it will replace the matched text with the output of the callback function. This function is like the mb_ereg_replace() function. It is supported in PHP 5.4 or higher version.Syntaxstring mb_ereg_replace_callback(str $pattern, callback $callback, str $string, str $options)ParametersThe function accepts the following four parameters −$pattern − This parameter is used for the regular expression pattern. It may use multibyte characters in a pattern.$callback − This parameter will ... Read More

In PHP, mb_ereg_match() function is used for matching a given string with a regular expression pattern. This function only matches the string from the beginning of the string and it is not necessary that it will match the string till the end. This function will return true or 1 if a match is found, else it will return False or 0.Syntaxbool mb_ereg_match(str $pattern, str $string, str $options)ParametersIt accepts the following three parameters −$pattern − This parameter is used for the regular expression.$string − This parameter is being evaluated.$options − It is used for the search.Return Valuesmb_ereg_match() returns true or 1 ... Read More

In PHP, mb_encoding_aliases() is used to get the aliases of a known encoding type. This function is supported in PHP 5 or higher version.Syntaxarray mb_encoding_aliases(str $encoding)ParametersIt accepts only one parameter, $encoding, which is the encoding type checked for aliases.Return ValuesIt returns a numerically indexed array of encoding aliases on success or it returns False on failure.Errors/ExceptionsIf the encoding is not known, then it gives an E_WARNING level error.Example 1OutputArray ( [0] => ANSI_X3.4-1968 [1] => iso-ir-6 [2] => ANSI_X3.4-1986 [3] => ISO_646.irv:1991 [4] => US-ASCII ... Read More

In PHP, mb_encode_mimeheader() function is used to encode a string for MIME (Multipurpose Internet Mail Extensions) header. It encodes a given string by the MIME header encoding scheme.Syntaxstring mb_encode_mimeheader(str $string, str $charset, str $transfer_encoding, str $newLine, int $indent)ParametersThe mb_encode_mimeheader() function accepts five parameters −$string − This parameter is used to encode the string. Its encoding should be the same as mb_internal_encoding()$charset − This parameter specifies the character set name in which the string is represented.$transfer_encoding − This parameter specifies the scheme of MIME encoding. It should be base64 (B) or Quoted-printable (Q). If not given, then it falls back to ... Read More

In PHP, mb_detect_encoding() is used to detect the character encoding. It can detect the character encoding for a string from an ordered list of candidates. This function is supported in PHP 4.0.6 or higher version.mb_detect_encoding() is useful with multibyte encoding, where not all sequences of bytes form a valid string. If the input string contains such type of a sequence, then that encoding will be rejected, and it will check for the next encoding.Syntaxstring mb_detect_encoding(str $string, str $encoding, bool $strcit)Automatic detection of character encoding is not entirely reliable without some additional information. We can say that character encoding detection is ... Read More

In PHP, we can use the function mb_substitute_character() to get the substitution character. This function specifies the substitution character when the input character encoding is not valid or the character code does not exist in the output character encoding.Note: The invalid characters may be substituted with no output, string, or int value (Unicode character code value).Syntaxstring mb_substitute_character($char)ParametersThis function accepts only one parameter, $char.$char− It specifies the Unicode value as an integer or the strings given below:"none"− It will return no output."long"− It is used for the output character code value. For example, "U+3000, JIS+7E7E""entity"− it is used to return the output ... Read More