Class Strings

String tools library.

Namespace: Nette\Utils
Located at Utils/Strings.php

Methods summary
`final public`	# `__construct( )` Static class - cannot be instantiated. Static class - cannot be instantiated.
`public static boolean`	# `checkEncoding( string $s )` Checks if the string is valid for UTF-8 encoding. Checks if the string is valid for UTF-8 encoding. Parameters `$s` stream to check Returns `boolean` bool
`public static string`	# `fixEncoding( string $s )` Removes invalid code unit sequences from UTF-8 string. Removes invalid code unit sequences from UTF-8 string. Parameters `$s` stream to fix Returns `string` string
`public static string`	# `chr( integer $code )` Returns a specific character in UTF-8. Returns a specific character in UTF-8. Parameters `$code` point (0x0 to 0xD7FF or 0xE000 to 0x10FFFF) Returns `string` string Throws `Nette\InvalidArgumentException` if code point is not in valid range
`public static boolean`	# `startsWith( string $haystack, string $needle )` Starts the $haystack string with the prefix $needle? Starts the $haystack string with the prefix $needle? Parameters `$haystack` `$needle` Returns `boolean` bool
`public static boolean`	# `endsWith( string $haystack, string $needle )` Ends the $haystack string with the suffix $needle? Ends the $haystack string with the suffix $needle? Parameters `$haystack` `$needle` Returns `boolean` bool
`public static boolean`	# `contains( string $haystack, string $needle )` Does $haystack contain $needle? Does $haystack contain $needle? Parameters `$haystack` `$needle` Returns `boolean` bool
`public static string`	# `substring( string $s, integer $start, integer $length = NULL )` Returns a part of UTF-8 string. Returns a part of UTF-8 string. Parameters `$s` `$start` characters (code points) `$length` characters (code points) Returns `string` string
`public static string`	# `normalize( string $s )` Removes special controls characters and normalizes line endings and spaces. Removes special controls characters and normalizes line endings and spaces. Parameters `$s` encoding Returns `string` string
`public static string`	# `normalizeNewLines( string $s )` Standardize line endings to unix-like. Standardize line endings to unix-like. Parameters `$s` encoding or 8-bit Returns `string` string
`public static string`	# `toAscii( string $s )` Converts to ASCII. Converts to ASCII. Parameters `$s` encoding Returns `string` ASCII
`public static string`	# `webalize( string $s, string $charlist = NULL, boolean $lower = TRUE )` Converts to web safe characters [a-z0-9-] text. Converts to web safe characters [a-z0-9-] text. Parameters `$s` encoding `$charlist` characters `$lower` Returns `string` string
`public static string`	# `truncate( string $s, integer $maxLen, string $append = "\xE2\x80\xA6" )` Truncates string to maximal length. Truncates string to maximal length. Parameters `$s` encoding `$maxLen` `$append` encoding Returns `string` string
`public static string`	# `indent( string $s, integer $level = 1, string $chars = "\t" )` Indents the content from the left. Indents the content from the left. Parameters `$s` encoding or 8-bit `$level` `$chars` Returns `string` string
`public static string`	# `lower( string $s )` Convert to lower case. Convert to lower case. Parameters `$s` encoding Returns `string` string
`public static string`	# `firstLower( string $s )` Convert first character to lower case. Convert first character to lower case. Parameters `$s` encoding Returns `string` string
`public static string`	# `upper( string $s )` Convert to upper case. Convert to upper case. Parameters `$s` encoding Returns `string` string
`public static string`	# `firstUpper( string $s )` Convert first character to upper case. Convert first character to upper case. Parameters `$s` encoding Returns `string` string
`public static string`	# `capitalize( string $s )` Capitalize string. Capitalize string. Parameters `$s` encoding Returns `string` string
`public static boolean`	# `compare( string $left, string $right, integer $len = NULL )` Case-insensitive compares UTF-8 strings. Case-insensitive compares UTF-8 strings. Parameters `$left` `$right` `$len` Returns `boolean` bool
`public static string`	# `findPrefix( string\|array $strings )` Finds the length of common prefix of strings. Finds the length of common prefix of strings. Parameters `$strings` Returns `string` string
`public static integer`	# `length( string $s )` Returns number of characters (not bytes) in UTF-8 string. That is the number of Unicode code points which may differ from the number of graphemes. Returns number of characters (not bytes) in UTF-8 string. That is the number of Unicode code points which may differ from the number of graphemes. Parameters `$s` Returns `integer` int
`public static string`	# `trim( string $s, string $charlist = Nette\Utils\Strings::TRIM_CHARACTERS )` Strips whitespace. Strips whitespace. Parameters `$s` encoding `$charlist` Returns `string` string
`public static string`	# `padLeft( string $s, integer $length, string $pad = ' ' )` Pad a string to a certain length with another string. Pad a string to a certain length with another string. Parameters `$s` encoding `$length` `$pad` Returns `string` string
`public static string`	# `padRight( string $s, integer $length, string $pad = ' ' )` Pad a string to a certain length with another string. Pad a string to a certain length with another string. Parameters `$s` encoding `$length` `$pad` Returns `string` string
`public static string`	# `reverse( string $s )` Reverse string. Reverse string. Parameters `$s` encoding Returns `string` string
`public static`	# `random( $length = 10, $charlist = '0-9a-z' )` Use Nette\Utils\Random::generate Use Nette\Utils\Random::generate Deprecated
`public static string\|false`	# `before( string $haystack, string $needle, integer $nth = 1 )` Returns part of $haystack before $nth occurence of $needle. Returns part of $haystack before $nth occurence of $needle. Parameters `$haystack` `$needle` `$nth` value means searching from the end Returns `string\|false` returns FALSE if the needle was not found
`public static string\|false`	# `after( string $haystack, string $needle, integer $nth = 1 )` Returns part of $haystack after $nth occurence of $needle. Returns part of $haystack after $nth occurence of $needle. Parameters `$haystack` `$needle` `$nth` value means searching from the end Returns `string\|false` returns FALSE if the needle was not found
`public static array`	# `split( string $subject, string $pattern, integer $flags = 0 )` Splits string by a regular expression. Splits string by a regular expression. Parameters `$subject` `$pattern` `$flags` Returns `array` array
`public static mixed`	# `match( string $subject, string $pattern, integer $flags = 0, integer $offset = 0 )` Performs a regular expression match. Performs a regular expression match. Parameters `$subject` `$pattern` `$flags` be PREG_OFFSET_CAPTURE (returned in bytes) `$offset` in bytes Returns `mixed` mixed
`public static array`	# `matchAll( string $subject, string $pattern, integer $flags = 0, integer $offset = 0 )` Performs a global regular expression match. Performs a global regular expression match. Parameters `$subject` `$pattern` `$flags` be PREG_OFFSET_CAPTURE (returned in bytes); PREG_SET_ORDER is default `$offset` in bytes Returns `array` array
`public static string`	# `replace( string $subject, string\|array $pattern, string\|callable $replacement = NULL, integer $limit = -1 )` Perform a regular expression search and replace. Perform a regular expression search and replace. Parameters `$subject` `$pattern` `$replacement` `$limit` Returns `string` string

Constants summary
`string`	`TRIM_CHARACTERS`	#`" \t\n\r\0\x0B\xC2\xA0"`

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