(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.2, PHP 7, PECL idn >= 0.1) Convert domain name to IDNA ASCII form. string idn_to_ascii ( string $domain [, int $options = 0 [, int $variant = INTL_IDNA_VARIANT_2003 [, array &$idna_info ]]] ) Procedural style This function converts Unicode domain name to IDNA ASCII-compatible format. Parameters: domain Domain to conv

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Return part of a string int grapheme_substr ( string $string, int $start [, int $length ] ) Procedural style Return part of a string Parameters: string The input string. Must be valid UTF-8. start Start position in default grapheme units. If $start is non-negative, the returned string wi

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Returns part of haystack string from the first occurrence of needle to the end of haystack. string grapheme_strstr ( string $haystack, string $needle [, bool $before_needle = false ] ) Procedural style Returns part of haystack string from the first occurrence of needle to the end of haystack (including the needle). Parameters: haystac

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Find position (in grapheme units) of last occurrence of a string int grapheme_strrpos ( string $haystack, string $needle [, int $offset = 0 ] ) Procedural style Find position (in grapheme units) of last occurrence of a string Parameters: haystack The string to look in. Must be valid UTF-8. needle

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Find position (in grapheme units) of last occurrence of a case-insensitive string int grapheme_strripos ( string $haystack, string $needle [, int $offset = 0 ] ) Procedural style Find position (in grapheme units) of last occurrence of a case-insensitive string Parameters: haystack The string to look in. Must be valid UTF-

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Find position (in grapheme units) of first occurrence of a string int grapheme_strpos ( string $haystack, string $needle [, int $offset = 0 ] ) Procedural style Find position (in grapheme units) of first occurrence of a string Parameters: haystack The string to look in. Must be valid UTF-8. needle

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Get string length in grapheme units int grapheme_strlen ( string $input ) Procedural style Get string length in grapheme units (not bytes or characters) Parameters: input The string being measured for length. It must be a valid UTF-8 string. Returns: The length of the string on success, and 0 if t

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Returns part of haystack string from the first occurrence of case-insensitive needle to the end of haystack. string grapheme_stristr ( string $haystack, string $needle [, bool $before_needle = false ] ) Procedural style Returns part of haystack string starting from and including the first occurrence of case-insensitive needle to the end of haystack. Paramete

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Find position (in grapheme units) of first occurrence of a case-insensitive string int grapheme_stripos ( string $haystack, string $needle [, int $offset = 0 ] ) Procedural style Find position (in grapheme units) of first occurrence of a case-insensitive string Parameters: haystack The string to look in. Must be valid UTF

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Function to extract a sequence of default grapheme clusters from a text buffer, which must be encoded in UTF-8. string grapheme_extract ( string $haystack, int $size [, int $extract_type [, int $start = 0 [, int &$next ]]] ) Procedural style Function to extract a sequence of default grapheme clusters from a text buffer, which must be encoded in UTF-8. Pa