PHP Text: string manipulation for humans

The methods in this library may not be as computationally efficient as the builtin PHP functions, but they are quite useful if you want to avoid some headaches.

Note: Some methods use the multi-byte safe built-in functions whenever possible.
See: php Multibyte String Functions.

Contents

• String manipulation functions
  • Text::convert(string $string, string $encoding, [$from])
  • Text::format(string $format, array $values)
  • Text::indexOf(string $substring, string $string, [int $offset], [bool $case_sensitive])
  • Text::isRegEx(string $pattern)
  • Text::join(array $array, [string $string])
  • Text::length(string $string, [string $encoding])
  • Text::lowercase(string $string)
  • Text::match(string $string, string $pattern, [array &$groups])
  • Text::matchAll(string $string, string $pattern, [array &$groups])
  • Text::pad(string $string, int $length, [string $chars], [int $side])
  • Text::split(string $string, string $pattern, [int $limit])
  • Text::style(string $string, [int $style])
  • Text::substring(string $string, [int $start], [int $length])
  • Text::trim(string $string, [string $chars], [int $side])
  • Text::uppercase(string $string)
  • Text::wrap(string $string, int $length, [string $break], [int $cut])
• Locale settings functions
  • Text::getLocale([string $key])
  • Text::getSystemLocale()
  • Text::setLocale(array $locale)

String manipulation functions

Text::convert(string $string, string $encoding, [$from])

Convert a string's character encoding.

Parameter	Type	Description
$string	string	The original string.
$encoding	string	The target encoding.
$from	string|string[]	Optional. The original encoding. It is either an array, or a comma separated enumerated list. If $from is not specified, then the internal encoding will be used.

Return string

Text::format(string $format, array $values)

Format a string.

Parameter	Type	Description
$format	string	A conversion specification follows the following prototypes: - %{key} or ${key} - %{key:modifier} or ${key:modifier} Keys in the format string must match the appropriate value key. Nested values can be referenced via dot notation.
$values	array	The replacemente values. The array can be either indexed or associative.

Return string

Text::indexOf(string $substring, string $string, [int $offset], [bool $case_sensitive])

Find the position of a substring in a string.

Parameter	Type	Description
$substring	string	The substring to search for.
$string	string	The string to search in.
$offset	int	Optional. If positive, the search is performed left to right skipping the first offset bytes. If negative, the search is performed right to left skipping the last offset bytes. Default:0.
$case_sensitive	bool	Optional. If false, serarch will be case-insensitive. Default: true.

Return int

A return value of -1 means that the substing was not found.

Text::isRegEx(string $pattern)

Check whether a string is a valid regular expression or not.

Parameter	Type	Description
$pattern	string	The string pattern.

Return bool

Text::join(array $array, [string $string])

Join array elements with a string.

Parameter	Type	Description
$array	array	The array of strings to join.
$string	string	Optional. The string used to join the array items together.

Return string

Text::length(string $string, [string $encoding])

Get a string length.

Parameter	Type	Description
$string	string	The string being measured.
$encoding	string	Optional. The character encoding.

Return int

Text::lowercase(string $string)

Convert a string to lowercase.

Parameter	Type	Description
$string	string	The string to be converted to lowercase.

Return string

Text::match(string $string, string $pattern, [array &$groups])

Perform a string match.

Parameter	Type	Description
$string	string	The input string.
$pattern	string	The characters or regex to search for.
$groups	array	Optional. Array of all captured groups.

Return string|null

The full mathching string.

Text::matchAll(string $string, string $pattern, [array &$groups])

Perform a global string match.

Parameter	Type	Description
$string	string	The input string.
$pattern	string	The characters or regex to search for.
$groups	array|null	Optional. Array of all captured groups indexed by global match offset.

Return array

Returns an array of all the full matches indexed by offset.

Text::pad(string $string, int $length, [string $chars], [int $side])

Pad a string to a certain length with another string.

Parameter	Type	Description
$string	string	The original string.
$length	int	The string target length.
$chars	string	Optional. The padding characters. Default: ' '
$side	int	Optional. The padding side (Text::PAD_BOTH|Text::PAD_LEFT|Text::PAD_RIGHT). Default: Text::PAD_LEFT.

Return string

Text::split(string $string, string $pattern, [int $limit])

Split a string into chunks.

Parameter	Type	Description
$string	string	The original string.
$pattern	string	The characters or regex used as splitter.
$limit	int	Optional. The maximum number of cuts (0 - or negative numbers - means no limits).

Return array

Text::style(string $string, [int $style])

Apply a style to a string.

Parameter	Type	Description
$string	string	The original string.
$style	int	Optional. The style to be applied. Accepted values: - Text::STYLE_TEXT_PARAGRAPH - Text::STYLE_TEXT_TITLE - Text::STYLE_TEXT_LOWERCASE - Text::STYLE_TEXT_UPPERCASE - Text::STYLE_VAR_CAMEL_CASE - Text::STYLE_VAR_KEBAB_CASE - Text::STYLE_VAR_PASCAL_CASE - Text::STYLE_VAR_SNAKE_CASE - Text::STYLE_VAR_LOWER_CASE - Text::STYLE_VAR_UPPER_CASE Default: Text::STYLE_TEXT_PARAGRAPH.

Return string

Text::substring(string $string, [int $start], [int $length])

Return part of a string.

Parameter	Type	Description
$string	string	The original string.
$start	int	Optional. Start position.
$length	int	Optional. Length of the extracted string.

Return string

Text::trim(string $string, [string $chars], [int $side])

Strip whitespace (or other characters) from the beginning and/or end of a string.

Parameter	Type	Description
$string	string	The original string.
$chars	string	Optional. Characters to be trimmed. Default: " \t\n\r\0\x0B".
$side	int	Optional. The trim side (Text::TRIM_BOTH|Text::TRIM_LEFT|Text::TRIM_RIGHT). Default: Text::TRIM_BOTH.

Return string

Text::uppercase(string $string)

Convert a string to uppercase.

Parameter	Type	Description
$string	string	The string to be converted to uppercase.

Return string

Text::wrap(string $string, int $length, [string $break], [int $cut])

Wrap a string to a given number of characters.

Parameter	Type	Description
$string	string	The original string.
$length	int	The maximum length of a line.
$break	string	Optional. Line break character. Default: "\n".
$cut	int	Optional. How to cut the line if a word exceeds maximum length. Accepted values: - Text::WRAP_AFTER : Wrap at first space after the specified length. - Text::WRAP_BEFORE : Wrap at last space before the specified length. - Text::WRAP_BREAK : Wrap exactly at the specified length. Default: Text::WRAP_BEFORE.

Return string

Locale settings functions

WARNING: These functions apply to the staticText class only and DO NOT affect PHP locale settings.

Text::getLocale([string $key])

Get locale settings.
Initially equals to system locale settings.

Parameter	Type	Description
$key	string	Optional. If $key is provided then only the corresponding value is returned.

Return mixed

Text::getSystemLocale()

Get settings as per system locale.

Return array

Text::setLocale(array $locale)

Set locale Settings.

Parameter	Type	Description
$locale	array	Array of locale settings. New settings are merged with current settings.